From 0bf7758dd4471bdeb641ed18c73c870e5dbf86e7 Mon Sep 17 00:00:00 2001
From: Johan Roenby <johan.roenby@gmail.com>
Date: Fri, 10 Dec 2021 16:16:39 +0000
Subject: [PATCH 1/4] ENH: interIsoFoam/isoAdvection: new porosity extension
MIME-Version: 1.0
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Co-authored-by: Niels Gjøl Jacobsen <>
Co-authored-by: Konstantinos Missios <>
Co-authored-by: Henning Scheufler <henning.scheufler@dlr.de>
Co-authored-by: Johan Roenby <johan.roenby@gmail.com>
---
 .../solvers/multiphase/interIsoFoam/UEqn.H    | 35 ++++++++
 .../multiphase/interIsoFoam/UEqnAddPorosity.H | 48 ++++++++++
 .../multiphase/interIsoFoam/alphaEqn.H        | 14 ++-
 .../multiphase/interIsoFoam/createFields.H    |  1 +
 .../multiphase/interIsoFoam/createPorosity.H  | 34 ++++++++
 .../multiphase/interIsoFoam/interIsoFoam.C    |  6 +-
 .../interIsoFoam/porousAlphaCourantNo.H       | 69 +++++++++++++++
 .../multiphase/interIsoFoam/porousCourantNo.H | 67 ++++++++++++++
 .../isoAdvection/isoAdvection.C               | 87 +++++++++++++++----
 .../isoAdvection/isoAdvection.H               | 33 +++++--
 .../isoAdvection/isoAdvectionTemplates.C      | 54 ++++++++----
 .../geometricVoF/cellCuts/cutFace/cutFace.C   |  6 +-
 12 files changed, 408 insertions(+), 46 deletions(-)
 create mode 100644 applications/solvers/multiphase/interIsoFoam/UEqn.H
 create mode 100644 applications/solvers/multiphase/interIsoFoam/UEqnAddPorosity.H
 create mode 100644 applications/solvers/multiphase/interIsoFoam/createPorosity.H
 create mode 100644 applications/solvers/multiphase/interIsoFoam/porousAlphaCourantNo.H
 create mode 100644 applications/solvers/multiphase/interIsoFoam/porousCourantNo.H

diff --git a/applications/solvers/multiphase/interIsoFoam/UEqn.H b/applications/solvers/multiphase/interIsoFoam/UEqn.H
new file mode 100644
index 0000000000..1f696f0650
--- /dev/null
+++ b/applications/solvers/multiphase/interIsoFoam/UEqn.H
@@ -0,0 +1,35 @@
+    MRF.correctBoundaryVelocity(U);
+
+    fvVectorMatrix UEqn
+    (
+        fvm::ddt(rho, U) + fvm::div(rhoPhi, U)
+      + MRF.DDt(rho, U)
+      + turbulence->divDevRhoReff(rho, U)
+     ==
+        fvOptions(rho, U)
+    );
+
+    #include "UEqnAddPorosity.H"
+
+    UEqn.relax();
+
+    fvOptions.constrain(UEqn);
+
+    if (pimple.momentumPredictor())
+    {
+        solve
+        (
+            UEqn
+         ==
+            fvc::reconstruct
+            (
+                (
+                    mixture.surfaceTensionForce()
+                  - ghf*fvc::snGrad(rho)
+                  - fvc::snGrad(p_rgh)
+                ) * mesh.magSf()
+            )
+        );
+
+        fvOptions.correct(U);
+    }
diff --git a/applications/solvers/multiphase/interIsoFoam/UEqnAddPorosity.H b/applications/solvers/multiphase/interIsoFoam/UEqnAddPorosity.H
new file mode 100644
index 0000000000..5e0242966e
--- /dev/null
+++ b/applications/solvers/multiphase/interIsoFoam/UEqnAddPorosity.H
@@ -0,0 +1,48 @@
+// Including porosity effects in UEqn following:
+// Jensen, B., Jacobsen, N. G., & Christensen, E. D. (2014).
+// Investigations on the porous media equations and resistance
+// coefficients for coastal structures. Coastal Engineering, 84, 56-72.
+
+if (porosityEnabled)
+{
+    const volScalarField& porosity = tporosity.cref();
+
+    const word porosityModel("JensenEtAl2014");
+    const dictionary& dict =
+        porosityProperties.subDict(porosityModel + "Coeffs");
+    const dimensionedScalar alpha(dimless/dimArea, dict.get<scalar>("alpha"));
+    const dimensionedScalar beta(dimless/dimLength, dict.get<scalar>("beta"));
+    const dimensionedScalar d50(dimless, dict.get<scalar>("d50"));
+    const dimensionedScalar KC(dimless, dict.get<scalar>("KC"));
+
+    // Generating Darcy-Forchheimer coefficient: F = rho*U*(a + b*|U|)
+    // Shoud it be mu or muEff in the equation below?
+    {
+        // Darcy term
+        volScalarField DarcyForchheimerCoeff
+        (
+            alpha*sqr(1 - porosity)*mixture.mu()/sqr(porosity)/sqr(d50)
+        );
+
+        // Adding Forchheimer term
+        DarcyForchheimerCoeff += rho*mag(U)
+            *beta*(1 + pos(KC)*7.5/KC)*(1 - porosity)/sqr(porosity)/d50;
+
+        // Adding Darcy-Forchheimer term as implicit source term
+        UEqn += fvm::Sp(DarcyForchheimerCoeff, U);
+    }
+
+    {
+        // Generating added mass force coefficient
+        const dimensionedScalar gamma_p(dimless, dict.get<scalar>("gamma_p"));
+        const volScalarField Cm(gamma_p*(1 - porosity));
+
+        UEqn += Cm*fvm::ddt(rho, U);
+        UEqn += Cm*MRF.DDt(rho, U);
+    }
+
+    // Dividing both matrix entries and source term by porosity to compensate
+    // for the fact that the FVM cell volume averages use division by cell
+    // volume V whereas only the cell pore volume, porosity*V, is accessible.
+    UEqn *= scalar(1)/porosity;
+}
diff --git a/applications/solvers/multiphase/interIsoFoam/alphaEqn.H b/applications/solvers/multiphase/interIsoFoam/alphaEqn.H
index b6f8aecb2f..3f3280a652 100644
--- a/applications/solvers/multiphase/interIsoFoam/alphaEqn.H
+++ b/applications/solvers/multiphase/interIsoFoam/alphaEqn.H
@@ -22,8 +22,20 @@
     mixture.correct();
 }
 
+scalar domainFraction = 0;
+if (porosityEnabled)
+{
+    const volScalarField& porosity = tporosity.cref();
+    rhoPhi *= scalar(1)/fvc::interpolate(porosity);
+    domainFraction = alpha1.weightedAverage(mesh.Vsc()*porosity).value();
+}
+else
+{
+    domainFraction = alpha1.weightedAverage(mesh.Vsc()).value();
+}
+
 Info<< "Phase-1 volume fraction = "
-    << alpha1.weightedAverage(mesh.Vsc()).value()
+    << domainFraction
     << "  Min(" << alpha1.name() << ") = " << min(alpha1).value()
     << "  Max(" << alpha1.name() << ") = " << max(alpha1).value()
     << endl;
diff --git a/applications/solvers/multiphase/interIsoFoam/createFields.H b/applications/solvers/multiphase/interIsoFoam/createFields.H
index f3cfac66a0..1fdb0243d0 100644
--- a/applications/solvers/multiphase/interIsoFoam/createFields.H
+++ b/applications/solvers/multiphase/interIsoFoam/createFields.H
@@ -130,5 +130,6 @@ mesh.setFluxRequired(alpha1.name());
 
 #include "createMRF.H"
 #include "createFvOptions.H"
+#include "createPorosity.H"
 
 isoAdvection advector(alpha1, phi, U);
diff --git a/applications/solvers/multiphase/interIsoFoam/createPorosity.H b/applications/solvers/multiphase/interIsoFoam/createPorosity.H
new file mode 100644
index 0000000000..ca7c52d98a
--- /dev/null
+++ b/applications/solvers/multiphase/interIsoFoam/createPorosity.H
@@ -0,0 +1,34 @@
+// Reading porosity properties from constant directory
+IOdictionary porosityProperties
+(
+    IOobject
+    (
+        "porosityProperties",
+        runTime.constant(),
+        runTime,
+        IOobject::READ_IF_PRESENT,
+        IOobject::NO_WRITE
+    )
+);
+
+const bool porosityEnabled
+(
+    porosityProperties.getOrDefault<bool>("porosityEnabled", false)
+);
+
+tmp<volScalarField> tporosity;
+if (porosityEnabled)
+{
+    tporosity = tmp<volScalarField>::New
+    (
+        IOobject
+        (
+            "porosity",
+            runTime.timeName(),
+            mesh,
+            IOobject::MUST_READ,
+            IOobject::AUTO_WRITE
+        ),
+        mesh
+    );
+}
diff --git a/applications/solvers/multiphase/interIsoFoam/interIsoFoam.C b/applications/solvers/multiphase/interIsoFoam/interIsoFoam.C
index 24f20fd6a4..e9c2f4ca4c 100644
--- a/applications/solvers/multiphase/interIsoFoam/interIsoFoam.C
+++ b/applications/solvers/multiphase/interIsoFoam/interIsoFoam.C
@@ -92,7 +92,7 @@ int main(int argc, char *argv[])
     #include "initCorrectPhi.H"
     #include "createUfIfPresent.H"
 
-    #include "CourantNo.H"
+    #include "porousCourantNo.H"
     #include "setInitialDeltaT.H"
 
     // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -101,8 +101,8 @@ int main(int argc, char *argv[])
     while (runTime.run())
     {
         #include "readDyMControls.H"
-        #include "CourantNo.H"
-        #include "alphaCourantNo.H"
+        #include "porousCourantNo.H"
+        #include "porousAlphaCourantNo.H"
         #include "setDeltaT.H"
 
         ++runTime;
diff --git a/applications/solvers/multiphase/interIsoFoam/porousAlphaCourantNo.H b/applications/solvers/multiphase/interIsoFoam/porousAlphaCourantNo.H
new file mode 100644
index 0000000000..c4c1fcbe3c
--- /dev/null
+++ b/applications/solvers/multiphase/interIsoFoam/porousAlphaCourantNo.H
@@ -0,0 +1,69 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2021 Johan Roenby
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Global
+    porousAlphaCourantNo
+
+Description
+    Calculates and outputs the mean and maximum Courant Numbers.
+
+\*---------------------------------------------------------------------------*/
+
+scalar maxAlphaCo = runTime.controlDict().get<scalar>("maxAlphaCo");
+scalar alphaCoNum = 0;
+scalar meanAlphaCoNum = 0;
+
+if (mesh.nInternalFaces())
+{
+    scalarField sumPhi
+    (
+        mixture.nearInterface()().primitiveField()
+       *fvc::surfaceSum(mag(phi))().primitiveField()
+    );
+
+    if (porosityEnabled)
+    {
+        const volScalarField& porosity = tporosity.cref();
+
+        alphaCoNum =
+            0.5*gMax(sumPhi/mesh.V().field()/porosity)*runTime.deltaTValue();
+
+        meanAlphaCoNum =
+            0.5*(gSum(sumPhi)/gSum(mesh.V().field()*porosity))
+           *runTime.deltaTValue();
+    }
+    else
+    {
+        alphaCoNum = 0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();
+
+        meanAlphaCoNum =
+            0.5*(gSum(sumPhi)/gSum(mesh.V().field()))*runTime.deltaTValue();
+    }
+}
+
+Info<< "Interface Courant Number mean: " << meanAlphaCoNum
+    << " max: " << alphaCoNum << endl;
+
+// ************************************************************************* //
diff --git a/applications/solvers/multiphase/interIsoFoam/porousCourantNo.H b/applications/solvers/multiphase/interIsoFoam/porousCourantNo.H
new file mode 100644
index 0000000000..aac3f02051
--- /dev/null
+++ b/applications/solvers/multiphase/interIsoFoam/porousCourantNo.H
@@ -0,0 +1,67 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2021 Johan Roenby
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Global
+    porousCourantNo
+
+Description
+    Calculates and outputs the mean and maximum Courant Numbers.
+
+\*---------------------------------------------------------------------------*/
+
+scalar CoNum = 0;
+scalar meanCoNum = 0;
+
+{
+    scalarField sumPhi
+    (
+        fvc::surfaceSum(mag(phi))().primitiveField()
+    );
+
+    if (porosityEnabled)
+    {
+        const volScalarField& porosity = tporosity.cref();
+
+        CoNum =
+            0.5*gMax(sumPhi/mesh.V().field()/porosity)
+           *runTime.deltaTValue();
+
+        meanCoNum =
+            0.5*(gSum(sumPhi)/gSum(mesh.V().field()*porosity))
+           *runTime.deltaTValue();
+    }
+    else
+    {
+        CoNum = 0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();
+
+        meanCoNum =
+            0.5*(gSum(sumPhi)/gSum(mesh.V().field()))*runTime.deltaTValue();
+    }
+}
+
+Info<< "Courant Number mean: " << meanCoNum
+    << " max: " << CoNum << endl;
+
+// ************************************************************************* //
diff --git a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.C b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.C
index 13d80e8250..39d57acdfb 100644
--- a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.C
+++ b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.C
@@ -7,8 +7,8 @@
 -------------------------------------------------------------------------------
     Copyright (C) 2016-2017 DHI
     Modified code Copyright (C) 2016-2017 OpenCFD Ltd.
-    Modified code Copyright (C) 2019 Johan Roenby
     Modified code Copyright (C) 2019-2020 DLR
+    Modified code Copyright (C) 2018, 2021 Johan Roenby
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -108,6 +108,10 @@ Foam::isoAdvection::isoAdvection
     bsn0_(bsFaces_.size()),
     bsUn0_(bsFaces_.size()),
 
+    // Porosity
+    porosityEnabled_(dict_.getOrDefault<bool>("porosityEnabled", false)),
+    porosityPtr_(nullptr),
+
     // Parallel run data
     procPatchLabels_(mesh_.boundary().size()),
     surfaceCellFacesOnProcPatches_(0)
@@ -132,6 +136,48 @@ Foam::isoAdvection::isoAdvection
         // Get boundary mesh and resize the list for parallel comms
         setProcessorPatches();
     }
+
+    // Reading porosity properties from constant directory
+    IOdictionary porosityProperties
+    (
+        IOobject
+        (
+            "porosityProperties",
+            mesh_.time().constant(),
+            mesh_,
+            IOobject::READ_IF_PRESENT,
+            IOobject::NO_WRITE
+        )
+    );
+
+    porosityEnabled_ =
+        porosityProperties.getOrDefault<bool>("porosityEnabled", false);
+
+    if (porosityEnabled_)
+    {
+        if (mesh_.foundObject<volScalarField>("porosity"))
+        {
+            porosityPtr_ = mesh_.getObjectPtr<volScalarField>("porosity");
+
+            if
+            (
+                gMin(porosityPtr_->primitiveField()) <= 0
+             || gMax(porosityPtr_->primitiveField()) > 1 + SMALL
+            )
+            {
+                FatalErrorInFunction
+                    << "Porosity field has values <= 0 or > 1"
+                    << exit(FatalError);
+            }
+        }
+        else
+        {
+            FatalErrorInFunction
+                << "Porosity enabled in constant/porosityProperties "
+                << "but no porosity field is found in object registry."
+                << exit(FatalError);
+        }
+    }
 }
 
 
@@ -222,6 +268,26 @@ void Foam::isoAdvection::timeIntegratedFlux()
     DynamicList<List<point>> isoFacePts;
     const DynamicField<label>& interfaceLabels = surf_->interfaceLabels();
 
+    // Calculating isoface normal velocity
+    scalarField Un0(interfaceLabels.size());
+    forAll(Un0, i)
+    {
+        const label celli = interfaceLabels[i];
+        const point x0(surf_->centre()[celli]);
+        const vector n0(normalised(-surf_->normal()[celli]));
+        Un0[i] = UInterp.interpolate(x0, celli) & n0;
+    }
+
+    // Taking acount of porosity if enabled
+    if (porosityEnabled_)
+    {
+        forAll(Un0, i)
+        {
+            const label celli = interfaceLabels[i];
+            Un0[i] /= porosityPtr_->primitiveField()[celli];
+        }
+    }
+
     // Loop through cells
     forAll(interfaceLabels, i)
     {
@@ -232,6 +298,8 @@ void Foam::isoAdvection::timeIntegratedFlux()
             // This is a surface cell, increment counter, append and mark cell
             nSurfaceCells++;
             surfCells_.append(celli);
+            const point x0(surf_->centre()[celli]);
+            const vector n0(normalised(-surf_->normal()[celli]));
 
             DebugInfo
                 << "\n------------ Cell " << celli << " with alpha1 = "
@@ -239,19 +307,6 @@ void Foam::isoAdvection::timeIntegratedFlux()
                 << 1.0 - alpha1In_[celli] << " ------------"
                 << endl;
 
-            // Cell is cut
-            const point x0 = surf_->centre()[celli];
-            const vector n0(normalised(-surf_->normal()[celli]));
-
-            // Get the speed of the isoface by interpolating velocity and
-            // dotting it with isoface unit normal
-            const scalar Un0 = UInterp.interpolate(x0, celli) & n0;
-
-            DebugInfo
-                << "calcIsoFace gives initial surface: \nx0 = " << x0
-                << ", \nn0 = " << n0 << ", \nUn0 = "
-                << Un0 << endl;
-
             // Estimate time integrated flux through each downwind face
             // Note: looping over all cell faces - in reduced-D, some of
             //       these faces will be on empty patches
@@ -284,7 +339,7 @@ void Foam::isoAdvection::timeIntegratedFlux()
                             facei,
                             x0,
                             n0,
-                            Un0,
+                            Un0[i],
                             dt,
                             phiIn[facei],
                             magSfIn[facei]
@@ -297,7 +352,7 @@ void Foam::isoAdvection::timeIntegratedFlux()
                     bsFaces_.append(facei);
                     bsx0_.append(x0);
                     bsn0_.append(n0);
-                    bsUn0_.append(Un0);
+                    bsUn0_.append(Un0[i]);
 
                     // Note: we must not check if the face is on the
                     // processor patch here.
diff --git a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.H b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.H
index 20a415a8f3..0e394ee6e8 100644
--- a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.H
+++ b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.H
@@ -7,8 +7,8 @@
 -------------------------------------------------------------------------------
     Copyright (C) 2016-2017 DHI
     Modified code Copyright (C) 2016-2019 OpenCFD Ltd.
-    Modified code Copyright (C) 2018 Johan Roenby
     Modified code Copyright (C) 2019 DLR
+    Modified code Copyright (C) 2018, 2021 Johan Roenby
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -30,14 +30,13 @@ Class
     Foam::isoAdvection
 
 Description
-    Calculates the new VOF (alpha) field after time step dt given the initial
-    VOF field and a velocity field U and face fluxes phi. The fluid transport
-    calculation is based on an idea of using isosurfaces to estimate the
-    internal distribution of fluid in cells and advecting such isosurfaces
-    across the mesh faces with the velocity field interpolated to the
-    isosurfaces.
+    An implementation of the isoAdvector geometric Volume-of-Fluid method
+    advancing the provided volume fraction field (alpha1) in time using the
+    given velocity field, U, and corresponding face fluxes, phi.
 
-    Reference:
+    References:
+
+    Main isoAdvector idea:
     \verbatim
         Roenby, J., Bredmose, H. and Jasak, H. (2016).
         A computational method for sharp interface advection
@@ -45,6 +44,20 @@ Description
         doi 10.1098/rsos.160405
     \endverbatim
 
+    Calculation of rhoPhi:
+    \verbatim
+        Roenby, J., Bredmose, H., & Jasak, H. (2019).
+        IsoAdvector: Geometric VOF on general meshes.
+        OpenFOAM® (pp. 281-296). Springer, Cham.
+    \endverbatim
+
+    Extension to porous media flows:
+    \verbatim
+        Missios, K., Jacobsen, N. G., Moeller, K., & Roenby, J.
+        Using the isoAdvector Geometric VOF Method for Interfacial Flows 
+        Through Porous Media. MARINE 2021.
+    \endverbatim
+
     Original code supplied by Johan Roenby, DHI (2016)
     Modified Henning Scheufler, DLR
 
@@ -157,7 +170,11 @@ class isoAdvection
             //- Storage for boundary surface iso face speed
             DynamicScalarList bsUn0_;
 
+            //- Switch telling if porosity is enabled
+            bool porosityEnabled_;
 
+            //- Pointer to porosity field (read from objectRegistry if exists)
+            volScalarField* porosityPtr_;
 
         // Additional data for parallel runs
 
diff --git a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvectionTemplates.C b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvectionTemplates.C
index f45426186e..cb5a071b84 100644
--- a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvectionTemplates.C
+++ b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvectionTemplates.C
@@ -8,6 +8,7 @@
     Copyright (C) 2016-2017 DHI
     Modified code Copyright (C) 2016-2017 OpenCFD Ltd.
     Modified code Copyright (C) 2019-2020 DLR
+    Modified code Copyright (C) 2021 Johan Roenby
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -162,14 +163,23 @@ void Foam::isoAdvection::limitFluxes
                 {
                     checkIfOnProcPatch(facei);
                     const label own = owner[facei];
+                    scalar Vown = mesh_.V()[own];
+                    if (porosityEnabled_)
+                    {
+                        Vown *= porosityPtr_->primitiveField()[own];
+                    }
+                    alpha1_[own] -= faceValue(dVfcorrectionValues, facei)/Vown;
 
-                    alpha1_[own] -=
-                        faceValue(dVfcorrectionValues, facei)/mesh_.V()[own];
                     if (mesh_.isInternalFace(facei))
                     {
                         const label nei = neighbour[facei];
+                        scalar Vnei = mesh_.V()[nei];
+                        if (porosityEnabled_)
+                        {
+                            Vnei *= porosityPtr_->primitiveField()[nei];
+                        }
                         alpha1_[nei] +=
-                            faceValue(dVfcorrectionValues, facei)/mesh_.V()[nei];
+                            faceValue(dVfcorrectionValues, facei)/Vnei;
                     }
 
                     // Change to treat boundaries consistently
@@ -242,7 +252,12 @@ void Foam::isoAdvection::boundFlux
     {
         if (alpha1_[celli] < -aTol || alpha1_[celli] > 1 + aTol)
         {
-            const scalar Vi = meshV[celli];
+            scalar Vi = meshV[celli];
+            if (porosityEnabled_)
+            {
+                Vi *= porosityPtr_->primitiveField()[celli];
+            }
+
             scalar alphaOvershoot =
                 pos0(alpha1_[celli] - 1)*(alpha1_[celli] - 1)
               + neg0(alpha1_[celli])*alpha1_[celli];
@@ -409,21 +424,30 @@ void Foam::isoAdvection::advect(const SpType& Sp, const SuType& Su)
     }
 
     // Advect the free surface
-    alpha1_.primitiveFieldRef() =
-    (
-        alpha1_.oldTime().primitiveField()*rDeltaT
-      + Su.field()
-      - fvc::surfaceIntegrate(dVf_)().primitiveField()*rDeltaT
-    )/(rDeltaT - Sp.field());
+    if (porosityEnabled_)
+    {
+        // Should Su and Sp also be divided by porosity?
+        alpha1_.primitiveFieldRef() =
+        (
+            alpha1_.oldTime().primitiveField()*rDeltaT + Su.field()
+          - fvc::surfaceIntegrate(dVf_)().primitiveField()*rDeltaT
+            /porosityPtr_->primitiveField()
+        )/(rDeltaT - Sp.field());
+    }
+    else
+    {
+        alpha1_.primitiveFieldRef() =
+        (
+            alpha1_.oldTime().primitiveField()*rDeltaT
+          + Su.field()
+          - fvc::surfaceIntegrate(dVf_)().primitiveField()*rDeltaT
+        )/(rDeltaT - Sp.field());
+    }
 
     alpha1_.correctBoundaryConditions();
 
     // Adjust dVf for unbounded cells
-    limitFluxes
-    (
-        Sp,
-        Su
-    );
+    limitFluxes(Sp, Su);
 
     scalar maxAlphaMinus1 = gMax(alpha1In_) - 1;
     scalar minAlpha = gMin(alpha1In_);
diff --git a/src/transportModels/geometricVoF/cellCuts/cutFace/cutFace.C b/src/transportModels/geometricVoF/cellCuts/cutFace/cutFace.C
index 8f3fce2988..b9c258b8e2 100644
--- a/src/transportModels/geometricVoF/cellCuts/cutFace/cutFace.C
+++ b/src/transportModels/geometricVoF/cellCuts/cutFace/cutFace.C
@@ -275,10 +275,10 @@ void Foam::cutFace::calcSubFaceCentreAndArea
     if (nPoints == 3)
     {
         subFaceCentre =
-                (1.0 / 3.0) * (subFacePoints[0] + subFacePoints[1] + subFacePoints[2]);
+            (1.0/3.0)*(subFacePoints[0] + subFacePoints[1] + subFacePoints[2]);
 
-        subFaceArea = 0.5 * ((subFacePoints[1] - subFacePoints[0]) ^
-                             (subFacePoints[2] - subFacePoints[0]));
+        subFaceArea = 0.5*((subFacePoints[1] - subFacePoints[0]) ^
+            (subFacePoints[2] - subFacePoints[0]));
     }
     else if (nPoints > 0)
     {

From b7af3ff891280bd3f4accc91c1bdf1ba883d2c93 Mon Sep 17 00:00:00 2001
From: Johan Roenby <johan.roenby@gmail.com>
Date: Fri, 10 Dec 2021 16:19:20 +0000
Subject: [PATCH 2/4] TUT: interIsoFoam: remove redundant entries

---
 .../multiphase/interIsoFoam/damBreak/system/fvSchemes |  2 --
 .../damBreakWithObstacle/constant/dynamicMeshDict     |  2 +-
 .../damBreakWithObstacle/system/fvSchemes             |  2 --
 .../damBreakWithObstacle/system/fvSolution            |  3 +--
 .../interIsoFoam/discInConstantFlow/system/fvSchemes  |  2 --
 .../interIsoFoam/discInConstantFlow/system/fvSolution |  8 ++++----
 .../discInConstantFlowCyclicBCs/system/fvSchemes      |  2 --
 .../discInConstantFlowCyclicBCs/system/fvSolution     | 11 +----------
 .../discInReversedVortexFlow/system/fvSchemes         |  2 --
 .../discInReversedVortexFlow/system/fvSolution        |  2 +-
 .../multiphase/interIsoFoam/iobasin/system/fvSchemes  |  2 --
 .../multiphase/interIsoFoam/iobasin/system/fvSolution |  2 +-
 .../notchedDiscInSolidBodyRotation/system/fvSchemes   |  2 --
 .../notchedDiscInSolidBodyRotation/system/fvSolution  |  2 +-
 .../interIsoFoam/sloshingTank2D/system/fvSchemes      |  2 --
 .../interIsoFoam/sloshingTank2D/system/fvSolution     |  3 +--
 .../sphereInReversedVortexFlow/system/fvSchemes       |  2 --
 .../sphereInReversedVortexFlow/system/fvSolution      |  2 +-
 .../interIsoFoam/standingWave/system/fvSolution       |  2 +-
 .../waveExampleStreamFunction/system/fvSchemes        |  2 --
 .../waveExampleStreamFunction/system/fvSolution       |  3 +--
 .../interIsoFoam/weirOverflow/system/fvSchemes        |  2 --
 22 files changed, 14 insertions(+), 48 deletions(-)

diff --git a/tutorials/multiphase/interIsoFoam/damBreak/system/fvSchemes b/tutorials/multiphase/interIsoFoam/damBreak/system/fvSchemes
index 0974ab0dca..3471c6fb90 100644
--- a/tutorials/multiphase/interIsoFoam/damBreak/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/damBreak/system/fvSchemes
@@ -28,8 +28,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)    Gauss limitedLinearV 1;
-    div(phi,alpha)   Gauss vanLeer;
-    div(phirb,alpha) Gauss interfaceCompression;
     div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
 }
 
diff --git a/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/constant/dynamicMeshDict b/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/constant/dynamicMeshDict
index e9f00c12b9..ee75b90d65 100644
--- a/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/constant/dynamicMeshDict
+++ b/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/constant/dynamicMeshDict
@@ -47,7 +47,7 @@ correctFluxes
     (phi none)
     (nHatf none)
     (rhoPhi none)
-    (alphaPhi none)
+    (alphaPhi_ none)
     (ghf none)
     (phi0 none)
     (dVf_ none)
diff --git a/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/system/fvSchemes b/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/system/fvSchemes
index 880a89205c..cf772a5117 100644
--- a/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/system/fvSchemes
@@ -28,8 +28,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)    Gauss upwind;
-    div(phi,alpha)   Gauss vanLeer;
-    div(phirb,alpha) Gauss linear;
     div(phi,k)       Gauss upwind;
     div(phi,omega)   Gauss upwind;
     div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
diff --git a/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/system/fvSolution b/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/system/fvSolution
index 0f414e2cea..25fc8f1703 100644
--- a/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/damBreakWithObstacle/system/fvSolution
@@ -29,9 +29,8 @@ solvers
         writeIsoFaces   false;
         reconstructionScheme plicRDF; // isoAlpha
 
-        nAlphaCorr      1;
         nAlphaSubCycles 1;
-        cAlpha          1;
+        cAlpha          1; // Read by interIsoFoam but not used
     }
 
     p_rgh
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantFlow/system/fvSchemes b/tutorials/multiphase/interIsoFoam/discInConstantFlow/system/fvSchemes
index f3fb2d3ee6..2d9aaf9341 100644
--- a/tutorials/multiphase/interIsoFoam/discInConstantFlow/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/discInConstantFlow/system/fvSchemes
@@ -28,8 +28,6 @@ gradSchemes
 divSchemes
 {
     div(rho*phi,U)   Gauss limitedLinearV 1;
-    div(phi,alpha)   Gauss vanLeer;
-    div(phirb,alpha) Gauss interfaceCompression;
     div((muEff*dev(T(grad(U))))) Gauss linear;
 }
 
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantFlow/system/fvSolution b/tutorials/multiphase/interIsoFoam/discInConstantFlow/system/fvSolution
index 8f14cbb4d8..e9a5e58049 100644
--- a/tutorials/multiphase/interIsoFoam/discInConstantFlow/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/discInConstantFlow/system/fvSolution
@@ -19,12 +19,12 @@ solvers
 {
     "alpha.*"
     {
-        isoFaceTol      1e-8;
-        surfCellTol     1e-8;
-        nAlphaBounds    3;
+        isoFaceTol      1e-10;
+        surfCellTol     1e-10;
+        nAlphaBounds    5;
         snapTol         0;
         clip            false;
-        cAlpha          1;
+        cAlpha          1; //Read by interIsoFoam but not used
         nAlphaSubCycles 1;
         reconstructionScheme plicRDF; // isoAlpha
     }
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantFlowCyclicBCs/system/fvSchemes b/tutorials/multiphase/interIsoFoam/discInConstantFlowCyclicBCs/system/fvSchemes
index 27539b3d29..85c1ddb24f 100644
--- a/tutorials/multiphase/interIsoFoam/discInConstantFlowCyclicBCs/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/discInConstantFlowCyclicBCs/system/fvSchemes
@@ -28,8 +28,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)    Gauss linearUpwind grad(U);
-    div(phi,alpha)   Gauss vanLeer;
-    div(phirb,alpha) Gauss linear;
     div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
 }
 
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantFlowCyclicBCs/system/fvSolution b/tutorials/multiphase/interIsoFoam/discInConstantFlowCyclicBCs/system/fvSolution
index 5bae5e24da..559f8d146d 100644
--- a/tutorials/multiphase/interIsoFoam/discInConstantFlowCyclicBCs/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/discInConstantFlowCyclicBCs/system/fvSolution
@@ -27,17 +27,8 @@ solvers
         clip            true;
         reconstructionScheme isoAlpha; // isoAlpha
 
-        nAlphaCorr      2;
         nAlphaSubCycles 1;
-        cAlpha          1;
-
-        MULESCorr       yes;
-        nLimiterIter    3;
-
-        solver          smoothSolver;
-        smoother        symGaussSeidel;
-        tolerance       1e-8;
-        relTol          0;
+        cAlpha          1; // Read but not used by interIsoFoam
     }
 
     "pcorr.*"
diff --git a/tutorials/multiphase/interIsoFoam/discInReversedVortexFlow/system/fvSchemes b/tutorials/multiphase/interIsoFoam/discInReversedVortexFlow/system/fvSchemes
index d9dd7e1883..982056b31f 100644
--- a/tutorials/multiphase/interIsoFoam/discInReversedVortexFlow/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/discInReversedVortexFlow/system/fvSchemes
@@ -28,8 +28,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)   Gauss limitedLinearV 1;
-    div(phi,alpha)  Gauss vanLeer;
-    div(phirb,alpha) Gauss linear;
 }
 
 laplacianSchemes
diff --git a/tutorials/multiphase/interIsoFoam/discInReversedVortexFlow/system/fvSolution b/tutorials/multiphase/interIsoFoam/discInReversedVortexFlow/system/fvSolution
index 05fe08f1c6..629a2b6615 100644
--- a/tutorials/multiphase/interIsoFoam/discInReversedVortexFlow/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/discInReversedVortexFlow/system/fvSolution
@@ -26,7 +26,7 @@ solvers
         clip            false;
 
         nAlphaSubCycles 1;
-        cAlpha          1;
+        cAlpha          1; // Read by interIsoFoam but not used
         reconstructionScheme plicRDF; // isoAlpha
     }
 }
diff --git a/tutorials/multiphase/interIsoFoam/iobasin/system/fvSchemes b/tutorials/multiphase/interIsoFoam/iobasin/system/fvSchemes
index 675c85755a..6fcc0b01b5 100644
--- a/tutorials/multiphase/interIsoFoam/iobasin/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/iobasin/system/fvSchemes
@@ -29,8 +29,6 @@ divSchemes
 {
     default             none;
     div(rhoPhi,U)       Gauss limitedLinearV 1;
-    div(phi,alpha)      Gauss vanLeer;
-    div(phirb,alpha)    Gauss linear;
 
     "div\(phi,(k|omega)\)"      Gauss upwind;
     div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
diff --git a/tutorials/multiphase/interIsoFoam/iobasin/system/fvSolution b/tutorials/multiphase/interIsoFoam/iobasin/system/fvSolution
index ab46cad2e4..c3246331ec 100644
--- a/tutorials/multiphase/interIsoFoam/iobasin/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/iobasin/system/fvSolution
@@ -20,7 +20,7 @@ solvers
     "alpha.water.*"
     {
         nAlphaSubCycles 1;
-        cAlpha          1;
+        cAlpha          1; // Read by interIsoFoam but not used
         reconstructionScheme isoAlpha; // plicRDF
         isoFaceTol      1e-8;
         surfCellTol     1e-6;
diff --git a/tutorials/multiphase/interIsoFoam/notchedDiscInSolidBodyRotation/system/fvSchemes b/tutorials/multiphase/interIsoFoam/notchedDiscInSolidBodyRotation/system/fvSchemes
index e18a11069b..908966f393 100644
--- a/tutorials/multiphase/interIsoFoam/notchedDiscInSolidBodyRotation/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/notchedDiscInSolidBodyRotation/system/fvSchemes
@@ -28,8 +28,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)   Gauss limitedLinearV 1;
-    div(phi,alpha)  Gauss vanLeer;
-    div(phirb,alpha) Gauss linear;
     div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
 }
 
diff --git a/tutorials/multiphase/interIsoFoam/notchedDiscInSolidBodyRotation/system/fvSolution b/tutorials/multiphase/interIsoFoam/notchedDiscInSolidBodyRotation/system/fvSolution
index f2db19bd4c..f9c1e7a451 100644
--- a/tutorials/multiphase/interIsoFoam/notchedDiscInSolidBodyRotation/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/notchedDiscInSolidBodyRotation/system/fvSolution
@@ -25,7 +25,7 @@ solvers
         nAlphaBounds    3;
         clip            false;
         nAlphaSubCycles 1;
-        cAlpha          1;
+        cAlpha          1; // Read by interIsoFoam but not used
         reconstructionScheme isoAlpha; // plicRDF
     }
 }
diff --git a/tutorials/multiphase/interIsoFoam/sloshingTank2D/system/fvSchemes b/tutorials/multiphase/interIsoFoam/sloshingTank2D/system/fvSchemes
index 1ea5308e02..88493c5c6a 100644
--- a/tutorials/multiphase/interIsoFoam/sloshingTank2D/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/sloshingTank2D/system/fvSchemes
@@ -27,8 +27,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)    Gauss vanLeerV;
-    div(phi,alpha)   Gauss vanLeer;
-    div(phirb,alpha) Gauss vanLeer;
     div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
 }
 
diff --git a/tutorials/multiphase/interIsoFoam/sloshingTank2D/system/fvSolution b/tutorials/multiphase/interIsoFoam/sloshingTank2D/system/fvSolution
index dea662b317..85c405cb1f 100644
--- a/tutorials/multiphase/interIsoFoam/sloshingTank2D/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/sloshingTank2D/system/fvSolution
@@ -18,9 +18,8 @@ solvers
 {
     alpha.water
     {
-        nAlphaCorr      1;
         nAlphaSubCycles 3;
-        cAlpha          1.5;
+        cAlpha          1; // Read by interIsoFoam but not used
 
         isoFaceTol      1e-10;
         surfCellTol     1e-6;
diff --git a/tutorials/multiphase/interIsoFoam/sphereInReversedVortexFlow/system/fvSchemes b/tutorials/multiphase/interIsoFoam/sphereInReversedVortexFlow/system/fvSchemes
index 74eda64d19..67ebdf926f 100644
--- a/tutorials/multiphase/interIsoFoam/sphereInReversedVortexFlow/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/sphereInReversedVortexFlow/system/fvSchemes
@@ -28,8 +28,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)    Gauss limitedLinearV 1;
-    div(phi,alpha)   Gauss vanLeer;
-    div(phirb,alpha) Gauss linear;
 }
 
 laplacianSchemes
diff --git a/tutorials/multiphase/interIsoFoam/sphereInReversedVortexFlow/system/fvSolution b/tutorials/multiphase/interIsoFoam/sphereInReversedVortexFlow/system/fvSolution
index bb303b1d33..6216c70b2c 100644
--- a/tutorials/multiphase/interIsoFoam/sphereInReversedVortexFlow/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/sphereInReversedVortexFlow/system/fvSolution
@@ -25,7 +25,7 @@ solvers
         nAlphaBounds    8;
         clip            false;
         nAlphaSubCycles 1;
-        cAlpha          1;
+        cAlpha          1; // Read but not used by interIsoFoam
         reconstructionScheme isoAlpha;
     }
 }
diff --git a/tutorials/multiphase/interIsoFoam/standingWave/system/fvSolution b/tutorials/multiphase/interIsoFoam/standingWave/system/fvSolution
index f0db5bfd89..141b14462e 100644
--- a/tutorials/multiphase/interIsoFoam/standingWave/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/standingWave/system/fvSolution
@@ -26,7 +26,7 @@ solvers
         clip            true;
 
         nAlphaSubCycles 1;
-        cAlpha          1;
+        cAlpha          1; // Read by interIsoFoam but not used
         reconstructionScheme isoAlpha; // plicRDF
     }
 
diff --git a/tutorials/multiphase/interIsoFoam/waveExampleStreamFunction/system/fvSchemes b/tutorials/multiphase/interIsoFoam/waveExampleStreamFunction/system/fvSchemes
index b0d1975449..8d08d76b21 100644
--- a/tutorials/multiphase/interIsoFoam/waveExampleStreamFunction/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/waveExampleStreamFunction/system/fvSchemes
@@ -27,8 +27,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)    Gauss linearUpwind grad(U);
-    div(phi,alpha)   Gauss vanLeer;
-    div(phirb,alpha) Gauss linear;
     div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
 }
 
diff --git a/tutorials/multiphase/interIsoFoam/waveExampleStreamFunction/system/fvSolution b/tutorials/multiphase/interIsoFoam/waveExampleStreamFunction/system/fvSolution
index 7c55e4775d..f15e1510da 100644
--- a/tutorials/multiphase/interIsoFoam/waveExampleStreamFunction/system/fvSolution
+++ b/tutorials/multiphase/interIsoFoam/waveExampleStreamFunction/system/fvSolution
@@ -24,9 +24,8 @@ solvers
         snapTol         1e-12;
         clip            true;
 
-        nAlphaCorr      1;
         nAlphaSubCycles 1;
-        cAlpha          1;
+        cAlpha          1; // Read by interIsoFoam but not used
 
         reconstructionScheme plicRDF; // plicRDF
     }
diff --git a/tutorials/multiphase/interIsoFoam/weirOverflow/system/fvSchemes b/tutorials/multiphase/interIsoFoam/weirOverflow/system/fvSchemes
index 1d3baa2721..1d715d5a48 100644
--- a/tutorials/multiphase/interIsoFoam/weirOverflow/system/fvSchemes
+++ b/tutorials/multiphase/interIsoFoam/weirOverflow/system/fvSchemes
@@ -28,8 +28,6 @@ gradSchemes
 divSchemes
 {
     div(rhoPhi,U)    Gauss linear;
-    div(phi,alpha)   Gauss vanLeer;
-    div(phirb,alpha) Gauss linear;
     div(phi,k)       Gauss upwind;
     div(phi,epsilon) Gauss upwind;
     div(phi,R)       Gauss upwind;

From 5fa2bc030d22f9c71f72498616d852b968a88342 Mon Sep 17 00:00:00 2001
From: Johan Roenby <johan.roenby@gmail.com>
Date: Fri, 10 Dec 2021 16:19:58 +0000
Subject: [PATCH 3/4] TUT: discInConstantPorousFlow/porousDamBreak: new
 tutorials for interIsoFoam

TUT: create verificationAndValidation/multiphase
     directory and migrate StefanProblem into this
---
 .../discInConstantPorousFlow/0.orig/U         |  40 +++++++
 .../0.orig/alpha.water                        |  40 +++++++
 .../discInConstantPorousFlow/0.orig/p_rgh     |  40 +++++++
 .../discInConstantPorousFlow/0.orig/porosity  |  40 +++++++
 .../discInConstantPorousFlow/Allclean         |   8 ++
 .../discInConstantPorousFlow/Allrun           |  34 ++++++
 .../discInConstantPorousFlow/constant/g       |  21 ++++
 .../constant/porosityProperties               |  20 ++++
 .../constant/transportProperties              |  36 +++++++
 .../constant/turbulenceProperties             |   0
 .../system/blockMeshDict                      |  82 ++++++++++++++
 .../system/controlDict                        |  58 ++++++++++
 .../system/decomposeParDict                   |  22 ++++
 .../discInConstantPorousFlow/system/fvSchemes |  57 ++++++++++
 .../system/fvSolution                         |  43 ++++++++
 .../system/setAlphaFieldDict                  |  24 +++++
 .../system/setFieldsDict                      |  36 +++++++
 .../{ => multiphase}/StefanProblem/Allclean   |   0
 .../{ => multiphase}/StefanProblem/Allrun     |   0
 .../{ => multiphase}/StefanProblem/plot       |   0
 .../StefanProblem/setups.orig/common/0.orig/U |   0
 .../setups.orig/common/0.orig/p_rgh           |   0
 .../setups.orig/common/constant/g             |   0
 .../common/constant/transportProperties       |   0
 .../common/constant/turbulenceProperties      |  20 ++++
 .../setups.orig/common/system/blockMeshDict   |   0
 .../common/system/decomposeParDict            |   0
 .../icoReactingMultiphaseInterFoam/0.orig/T   |   0
 .../icoReactingMultiphaseInterFoam/0.orig/U   |   0
 .../0.orig/alpha.gas                          |   0
 .../0.orig/alpha.liquid                       |   0
 .../0.orig/p_rgh                              |   0
 .../icoReactingMultiphaseInterFoam/constant/g |   0
 .../constant/phaseProperties                  |   0
 .../constant/thermophysicalProperties.gas     |   0
 .../constant/thermophysicalProperties.liquid  |   0
 .../constant/transportProperties              |   0
 .../constant/turbulenceProperties             |   0
 .../system/blockMeshDict                      |   0
 .../system/controlDict                        |   0
 .../system/decomposeParDict                   |   0
 .../system/fvSchemes                          |   0
 .../system/fvSolution                         |   0
 .../system/setAlphaFieldDict.gas              |   0
 .../system/setAlphaFieldDict.liquid           |   0
 .../interCondensatingEvaporatingFoam/0.orig/T |   0
 .../interCondensatingEvaporatingFoam/0.orig/U |   0
 .../0.orig/alpha.liquid                       |   0
 .../interCondensatingEvaporatingFoam/0.orig/p |   0
 .../0.orig/p_rgh                              |   0
 .../constant/g                                |   0
 .../constant/phaseChangeProperties            |   0
 .../constant/thermophysicalProperties         |   0
 .../constant/transportProperties              |   0
 .../constant/turbulenceProperties             |   0
 .../system/blockMeshDict                      |   0
 .../system/controlDict                        |   0
 .../system/decomposeParDict                   |   0
 .../system/fvSchemes                          |   0
 .../system/fvSolution                         |   0
 .../system/setAlphaFieldDict                  |   0
 .../interIsoFoam/porousDamBreak/0.orig/U      |  51 +++++++++
 .../porousDamBreak/0.orig/alpha.water         |  52 +++++++++
 .../interIsoFoam/porousDamBreak/0.orig/p_rgh  |  59 ++++++++++
 .../porousDamBreak/0.orig/porosity            |  54 ++++++++++
 .../interIsoFoam/porousDamBreak/Allclean      |  10 ++
 .../interIsoFoam/porousDamBreak/Allrun        |  18 ++++
 .../interIsoFoam/porousDamBreak/README.md     |  15 +++
 .../interIsoFoam/porousDamBreak/constant/g    |  21 ++++
 .../constant/porosityProperties               |  31 ++++++
 .../constant/transportProperties              |  66 ++++++++++++
 .../constant/turbulenceProperties             |  20 ++++
 .../experimentalData/data_0.dat               |   8 ++
 .../experimentalData/data_10.dat              |  37 +++++++
 .../experimentalData/data_12.dat              |  35 ++++++
 .../experimentalData/data_14.dat              |  35 ++++++
 .../experimentalData/data_16.dat              |  35 ++++++
 .../experimentalData/data_18.dat              |  32 ++++++
 .../experimentalData/data_2.dat               |  23 ++++
 .../experimentalData/data_20.dat              |  35 ++++++
 .../experimentalData/data_22.dat              |  36 +++++++
 .../experimentalData/data_4.dat               |  27 +++++
 .../experimentalData/data_6.dat               |  32 ++++++
 .../experimentalData/data_8.dat               |  33 ++++++
 .../interIsoFoam/porousDamBreak/plot          |  62 +++++++++++
 .../porousDamBreak/system/blockMeshDict       |  86 +++++++++++++++
 .../porousDamBreak/system/controlDict         | 101 ++++++++++++++++++
 .../porousDamBreak/system/decomposeParDict    |  27 +++++
 .../porousDamBreak/system/fvSchemes           |  59 ++++++++++
 .../porousDamBreak/system/fvSolution          | 100 +++++++++++++++++
 .../porousDamBreak/system/setFieldsDict       |  55 ++++++++++
 91 files changed, 1876 insertions(+)
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/U
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/alpha.water
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/p_rgh
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/porosity
 create mode 100755 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/Allclean
 create mode 100755 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/Allrun
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/g
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/porosityProperties
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/transportProperties
 rename tutorials/{verificationAndValidation/StefanProblem/setups.orig/common => multiphase/interIsoFoam/discInConstantPorousFlow}/constant/turbulenceProperties (100%)
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/blockMeshDict
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/controlDict
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/decomposeParDict
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/fvSchemes
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/fvSolution
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/setAlphaFieldDict
 create mode 100644 tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/setFieldsDict
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/Allclean (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/Allrun (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/plot (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/common/0.orig/U (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/common/0.orig/p_rgh (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/common/constant/g (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/common/constant/transportProperties (100%)
 create mode 100644 tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/constant/turbulenceProperties
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/common/system/blockMeshDict (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/common/system/decomposeParDict (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/T (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/U (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.gas (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.liquid (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/p_rgh (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/g (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/phaseProperties (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.gas (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.liquid (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/transportProperties (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/turbulenceProperties (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/blockMeshDict (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/controlDict (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/decomposeParDict (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSchemes (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSolution (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.gas (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.liquid (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/T (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/U (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/alpha.liquid (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p_rgh (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/g (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/phaseChangeProperties (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/thermophysicalProperties (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/transportProperties (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/turbulenceProperties (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/blockMeshDict (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/controlDict (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/decomposeParDict (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSchemes (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSolution (100%)
 rename tutorials/verificationAndValidation/{ => multiphase}/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/setAlphaFieldDict (100%)
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/U
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/alpha.water
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/p_rgh
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/porosity
 create mode 100755 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/Allclean
 create mode 100755 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/Allrun
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/README.md
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/g
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/porosityProperties
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/transportProperties
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/turbulenceProperties
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_0.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_10.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_12.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_14.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_16.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_18.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_2.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_20.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_22.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_4.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_6.dat
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_8.dat
 create mode 100755 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/plot
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/blockMeshDict
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/controlDict
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/decomposeParDict
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/fvSchemes
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/fvSolution
 create mode 100644 tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/setFieldsDict

diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/U b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/U
new file mode 100644
index 0000000000..1f5b94f14e
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/U
@@ -0,0 +1,40 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volVectorField;
+    object      U;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 -1 0 0 0 0];
+
+internalField   uniform (1 0 0.5);
+
+boundaryField
+{
+    rim
+    {
+        type            zeroGradient;
+    }
+
+    front
+    {
+        type            empty;
+    }
+
+    back
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/alpha.water b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/alpha.water
new file mode 100644
index 0000000000..a767ba07f8
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/alpha.water
@@ -0,0 +1,40 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      alpha.water;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 0 0 0 0];
+
+internalField   uniform 0;
+
+boundaryField
+{
+    rim
+    {
+        type    zeroGradient;
+    }
+
+    front
+    {
+        type    empty;
+    }
+
+    back
+    {
+        type    empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/p_rgh b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/p_rgh
new file mode 100644
index 0000000000..36e1febea7
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/p_rgh
@@ -0,0 +1,40 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      p_rgh;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [1 -1 -2 0 0 0 0];
+
+internalField   uniform 0;
+
+boundaryField
+{
+    rim
+    {
+        type    zeroGradient;
+    }
+
+    front
+    {
+        type    empty;
+    }
+
+    back
+    {
+        type    empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/porosity b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/porosity
new file mode 100644
index 0000000000..6c2b45c37a
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/0.orig/porosity
@@ -0,0 +1,40 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      porosity;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 0 0 0 0];
+
+internalField   uniform 1;
+
+boundaryField
+{
+    rim
+    {
+        type    zeroGradient;
+    }
+
+    front
+    {
+        type    empty;
+    }
+
+    back
+    {
+        type    empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/Allclean b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/Allclean
new file mode 100755
index 0000000000..fb1f384730
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/Allclean
@@ -0,0 +1,8 @@
+#!/bin/sh
+cd "${0%/*}" || exit                                # Run from this directory
+. ${WM_PROJECT_DIR:?}/bin/tools/CleanFunctions      # Tutorial clean functions
+#------------------------------------------------------------------------------
+
+cleanCase0
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/Allrun b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/Allrun
new file mode 100755
index 0000000000..309fe79026
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/Allrun
@@ -0,0 +1,34 @@
+#!/bin/sh
+cd "${0%/*}" || exit                                # Run from this directory
+. ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions        # Tutorial run functions
+#------------------------------------------------------------------------------
+
+restore0Dir
+
+runApplication blockMesh
+
+runApplication setAlphaField
+
+runApplication setFields
+
+runApplication decomposePar
+
+runParallel $(getApplication)
+
+runApplication reconstructPar
+
+# restart
+
+latestTime=$(foamListTimes -latestTime)
+
+mv -f "$latestTime" "$latestTime".bak
+
+rm -rf processor*
+
+runParallel -s decompose redistributePar -decompose -latestTime
+
+runParallel -s 2 $(getApplication)
+
+runParallel -s reconstruct redistributePar -reconstruct -latestTime
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/g b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/g
new file mode 100644
index 0000000000..5ffc768db9
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/g
@@ -0,0 +1,21 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       uniformDimensionedVectorField;
+    object      g;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 -2 0 0 0 0];
+value           ( 0 -9.81 0 );
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/porosityProperties b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/porosityProperties
new file mode 100644
index 0000000000..5cc774adc2
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/porosityProperties
@@ -0,0 +1,20 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      porosityProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+porosityEnabled true;
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/transportProperties b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/transportProperties
new file mode 100644
index 0000000000..e8cb8b8cc4
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/transportProperties
@@ -0,0 +1,36 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      transportProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+phases          (water air);
+
+water
+{
+    transportModel  Newtonian;
+    nu              0;
+    rho             1000;
+}
+
+air
+{
+    transportModel  Newtonian;
+    nu              0;
+    rho             1;
+}
+
+sigma           0;
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/common/constant/turbulenceProperties b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/turbulenceProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/common/constant/turbulenceProperties
rename to tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/constant/turbulenceProperties
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/blockMeshDict b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/blockMeshDict
new file mode 100644
index 0000000000..be848961b1
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/blockMeshDict
@@ -0,0 +1,82 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+scale   1;
+
+L       5;
+nx      100;
+
+y1      -0.05;
+y2      0.05;
+ny      1;
+
+H       3;
+nz      60;
+
+vertices
+(
+    (0 $y1 0)
+    ($L $y1 0)
+    ($L $y2 0)
+    (0 $y2 0)
+    (0 $y1 $H)
+    ($L $y1 $H)
+    ($L $y2 $H)
+    (0 $y2 $H)
+);
+
+blocks
+(
+    hex (0 1 2 3 4 5 6 7) ($nx $ny $nz) simpleGrading (1 1 1)
+);
+
+edges
+(
+);
+
+boundary
+(
+    rim
+    {
+        type patch;
+        faces
+        (
+            (4 5 6 7)
+            (0 4 7 3)
+            (1 2 6 5)
+            (0 3 2 1)
+        );
+    }
+    front
+    {
+        type empty;
+        faces
+        (
+            (0 1 5 4)
+        );
+    }
+    back
+    {
+        type empty;
+        faces
+        (
+            (2 3 7 6)
+        );
+    }
+);
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/controlDict b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/controlDict
new file mode 100644
index 0000000000..43db181921
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/controlDict
@@ -0,0 +1,58 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version         2.0;
+    format          ascii;
+    class           dictionary;
+    object          controlDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+application     interIsoFoam;
+
+startFrom       latestTime;
+
+startTime       0.0;
+
+stopAt          endTime;
+
+endTime         2.5;
+
+writeControl    adjustable;
+
+writeInterval   0.1;
+
+deltaT          1e-3;
+
+purgeWrite      0;
+
+writeFormat     ascii;
+
+writePrecision  14;
+
+writeCompression off;
+
+timeFormat      general;
+
+timePrecision   6;
+
+graphFormat     raw;
+
+runTimeModifiable no;
+
+adjustTimeStep  yes;
+
+maxCo           1e6;
+
+maxAlphaCo      0.5;
+
+maxDeltaT       1e6;
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/decomposeParDict b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/decomposeParDict
new file mode 100644
index 0000000000..de1fc40a12
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/decomposeParDict
@@ -0,0 +1,22 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains 4;
+
+method          scotch;
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/fvSchemes b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/fvSchemes
new file mode 100644
index 0000000000..52bb6287c6
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/fvSchemes
@@ -0,0 +1,57 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+    default          Euler;
+}
+
+gradSchemes
+{
+    default          Gauss linear;
+}
+
+divSchemes
+{
+    div(rhoPhi,U)    Gauss limitedLinearV 1;
+    div((muEff*dev(T(grad(U))))) Gauss linear;
+}
+
+laplacianSchemes
+{
+    default          Gauss linear corrected;
+}
+
+interpolationSchemes
+{
+    default          linear;
+}
+
+snGradSchemes
+{
+    default          corrected;
+}
+
+fluxRequired
+{
+    default          no;
+    p_rgh;
+    pcorr;
+    alpha1;
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/fvSolution b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/fvSolution
new file mode 100644
index 0000000000..862c979857
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/fvSolution
@@ -0,0 +1,43 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+solvers
+{
+    "alpha.*"
+    {
+        isoFaceTol      1e-8;
+        surfCellTol     1e-8;
+        nAlphaBounds    3;
+        snapTol         0;
+        clip            false;
+        cAlpha          1; // Read but not used by interIsoFoam
+        nAlphaSubCycles 1;
+        reconstructionScheme plicRDF; // isoAlpha
+    }
+}
+
+PIMPLE
+{
+    frozenFlow      yes;
+    momentumPredictor no;
+    nCorrectors     -1;
+    nNonOrthogonalCorrectors -1;
+    pRefCell        0;
+    pRefValue       0;
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/setAlphaFieldDict b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/setAlphaFieldDict
new file mode 100644
index 0000000000..e79c7809b3
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/setAlphaFieldDict
@@ -0,0 +1,24 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      setAlphaFieldDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+field           alpha.water;
+type            cylinder;
+radius          0.25;
+direction       (0 1 0);
+origin          (0.5 0 0.5);
+
+
+// ************************************************************************* //
diff --git a/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/setFieldsDict b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/setFieldsDict
new file mode 100644
index 0000000000..25cdfb361e
--- /dev/null
+++ b/tutorials/multiphase/interIsoFoam/discInConstantPorousFlow/system/setFieldsDict
@@ -0,0 +1,36 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      setFieldsDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defaultFieldValues
+(
+    volScalarFieldValue porosity 1
+);
+
+regions
+(
+   boxToCell
+    {
+        box (1 -0.05 0) (4 0.05 3);
+
+        fieldValues
+        (
+            volScalarFieldValue porosity 0.5
+        );
+    }
+);
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/StefanProblem/Allclean b/tutorials/verificationAndValidation/multiphase/StefanProblem/Allclean
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/Allclean
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/Allclean
diff --git a/tutorials/verificationAndValidation/StefanProblem/Allrun b/tutorials/verificationAndValidation/multiphase/StefanProblem/Allrun
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/Allrun
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/Allrun
diff --git a/tutorials/verificationAndValidation/StefanProblem/plot b/tutorials/verificationAndValidation/multiphase/StefanProblem/plot
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/plot
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/plot
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/common/0.orig/U b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/0.orig/U
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/common/0.orig/U
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/0.orig/U
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/common/0.orig/p_rgh b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/0.orig/p_rgh
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/common/0.orig/p_rgh
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/0.orig/p_rgh
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/common/constant/g b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/constant/g
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/common/constant/g
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/constant/g
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/common/constant/transportProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/constant/transportProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/common/constant/transportProperties
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/constant/transportProperties
diff --git a/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/constant/turbulenceProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/constant/turbulenceProperties
new file mode 100644
index 0000000000..66b3b930f9
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/constant/turbulenceProperties
@@ -0,0 +1,20 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      turbulenceProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+simulationType  laminar;
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/common/system/blockMeshDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/system/blockMeshDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/common/system/blockMeshDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/system/blockMeshDict
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/common/system/decomposeParDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/system/decomposeParDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/common/system/decomposeParDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/common/system/decomposeParDict
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/T b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/T
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/T
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/T
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/U b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/U
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/U
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/U
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.gas b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.gas
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.gas
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.gas
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.liquid b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.liquid
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.liquid
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/alpha.liquid
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/p_rgh b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/p_rgh
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/p_rgh
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/0.orig/p_rgh
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/g b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/g
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/g
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/g
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/phaseProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/phaseProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/phaseProperties
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/phaseProperties
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.gas b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.gas
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.gas
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.gas
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.liquid b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.liquid
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.liquid
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/thermophysicalProperties.liquid
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/transportProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/transportProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/transportProperties
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/transportProperties
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/turbulenceProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/turbulenceProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/turbulenceProperties
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/constant/turbulenceProperties
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/blockMeshDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/blockMeshDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/blockMeshDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/blockMeshDict
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/controlDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/controlDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/controlDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/controlDict
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/decomposeParDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/decomposeParDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/decomposeParDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/decomposeParDict
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSchemes b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSchemes
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSchemes
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSchemes
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSolution b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSolution
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSolution
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/fvSolution
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.gas b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.gas
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.gas
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.gas
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.liquid b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.liquid
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.liquid
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/icoReactingMultiphaseInterFoam/system/setAlphaFieldDict.liquid
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/T b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/T
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/T
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/T
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/U b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/U
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/U
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/U
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/alpha.liquid b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/alpha.liquid
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/alpha.liquid
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/alpha.liquid
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p_rgh b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p_rgh
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p_rgh
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/0.orig/p_rgh
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/g b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/g
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/g
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/g
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/phaseChangeProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/phaseChangeProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/phaseChangeProperties
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/phaseChangeProperties
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/thermophysicalProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/thermophysicalProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/thermophysicalProperties
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/thermophysicalProperties
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/transportProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/transportProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/transportProperties
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/transportProperties
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/turbulenceProperties b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/turbulenceProperties
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/turbulenceProperties
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/constant/turbulenceProperties
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/blockMeshDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/blockMeshDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/blockMeshDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/blockMeshDict
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/controlDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/controlDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/controlDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/controlDict
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/decomposeParDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/decomposeParDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/decomposeParDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/decomposeParDict
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSchemes b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSchemes
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSchemes
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSchemes
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSolution b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSolution
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSolution
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/fvSolution
diff --git a/tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/setAlphaFieldDict b/tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/setAlphaFieldDict
similarity index 100%
rename from tutorials/verificationAndValidation/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/setAlphaFieldDict
rename to tutorials/verificationAndValidation/multiphase/StefanProblem/setups.orig/interCondensatingEvaporatingFoam/system/setAlphaFieldDict
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/U b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/U
new file mode 100644
index 0000000000..dfb1592e4d
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/U
@@ -0,0 +1,51 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volVectorField;
+    object      U;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 -1 0 0 0 0];
+
+internalField   uniform (0 0 0);
+
+boundaryField
+{
+    leftWall
+    {
+        type            slip;
+    }
+
+    rightWall
+    {
+        type            slip;
+    }
+
+    lowerWall
+    {
+        type            slip;
+    }
+
+    atmosphere
+    {
+        type            pressureInletOutletVelocity;
+        value           uniform (0 0 0);
+    }
+
+    defaultFaces
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/alpha.water b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/alpha.water
new file mode 100644
index 0000000000..d101f2603b
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/alpha.water
@@ -0,0 +1,52 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      alpha.water;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 0 0 0 0];
+
+internalField   uniform 0;
+
+boundaryField
+{
+    leftWall
+    {
+        type            zeroGradient;
+    }
+
+    rightWall
+    {
+        type            zeroGradient;
+    }
+
+    lowerWall
+    {
+        type            zeroGradient;
+    }
+
+    atmosphere
+    {
+        type            inletOutlet;
+        inletValue      $internalField;
+        value           $internalField;
+    }
+
+    defaultFaces
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/p_rgh b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/p_rgh
new file mode 100644
index 0000000000..9ca1721c47
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/p_rgh
@@ -0,0 +1,59 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      p_rgh;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [1 -1 -2 0 0 0 0];
+
+internalField   uniform 0;
+
+boundaryField
+{
+    leftWall
+    {
+        type            fixedFluxPressure;
+        value           $internalField;
+    }
+
+    rightWall
+    {
+        type            fixedFluxPressure;
+        value           $internalField;
+    }
+
+    lowerWall
+    {
+        type            fixedFluxPressure;
+        value           $internalField;
+    }
+
+    atmosphere
+    {
+        type            totalPressure;
+        p0              uniform 0;
+        U               U;
+        phi             phi;
+        rho             rho;
+        gamma           1;
+        value           $internalField;
+    }
+
+    defaultFaces
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/porosity b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/porosity
new file mode 100644
index 0000000000..af867d61c5
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/0.orig/porosity
@@ -0,0 +1,54 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      porosity;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 0 0 0 0];
+
+internalField   uniform 1;
+
+boundaryField
+{
+    leftWall
+    {
+        type            calculated;
+        value           $internalField;
+    }
+
+    rightWall
+    {
+        type            calculated;
+        value           $internalField;
+    }
+
+    lowerWall
+    {
+        type            calculated;
+        value           $internalField;
+    }
+
+    atmosphere
+    {
+        type            calculated;
+        value           $internalField;
+    }
+
+    defaultFaces
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/Allclean b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/Allclean
new file mode 100755
index 0000000000..76e0acd9fa
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/Allclean
@@ -0,0 +1,10 @@
+#!/bin/sh
+cd "${0%/*}" || exit                                # Run from this directory
+. ${WM_PROJECT_DIR:?}/bin/tools/CleanFunctions      # Tutorial clean functions
+#------------------------------------------------------------------------------
+
+cleanCase0
+
+rm -rf plots
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/Allrun b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/Allrun
new file mode 100755
index 0000000000..1732ca92f9
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/Allrun
@@ -0,0 +1,18 @@
+#!/bin/sh
+cd "${0%/*}" || exit                                # Run from this directory
+. ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions        # Tutorial run functions
+#------------------------------------------------------------------------------
+
+restore0Dir
+
+runApplication blockMesh
+
+runApplication setFields
+
+runApplication decomposePar
+
+runParallel $(getApplication)
+
+runApplication reconstructPar
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/README.md b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/README.md
new file mode 100644
index 0000000000..b8dc67021d
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/README.md
@@ -0,0 +1,15 @@
+The experimental surface elevation data is taken from:
+
+    Liu, P. L. F., Lin, P., Chang, K. A., & Sakakiyama, T. (1999).
+    Numerical modeling of wave interaction with porous structures.
+    Journal of waterway, port, coastal, and ocean engineering,
+    125(6), 322-330.
+    DOI:10.1061/(ASCE)0733-950X(1999)125:6(322)
+
+Calibtration of porosity model is taken from:
+
+    Jensen, B., Jacobsen, N. G., & Christensen, E. D. (2014).
+    Investigations on the porous media equations and resistance
+    coefficients for coastal structures.
+    Coastal Engineering, 84, 56-72.
+    DOI:10.1016/j.coastaleng.2013.11.004
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/g b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/g
new file mode 100644
index 0000000000..5ffc768db9
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/g
@@ -0,0 +1,21 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       uniformDimensionedVectorField;
+    object      g;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 -2 0 0 0 0];
+value           ( 0 -9.81 0 );
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/porosityProperties b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/porosityProperties
new file mode 100644
index 0000000000..edc47e87d9
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/porosityProperties
@@ -0,0 +1,31 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      porosityProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+porosityModel JensenEtAl2014;
+
+porosityEnabled true;
+
+JensenEtAl2014Coeffs
+{
+    alpha 500;
+    beta 2;
+    gamma_p 0.34;
+    d50 0.0159;
+    KC 128;
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/transportProperties b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/transportProperties
new file mode 100644
index 0000000000..e1f28ae95e
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/transportProperties
@@ -0,0 +1,66 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      transportProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+phases (water air);
+
+water
+{
+    transportModel  Newtonian;
+    nu              1e-06;
+    rho             1000;
+    CrossPowerLawCoeffs
+    {
+        nu0         1e-06;
+        nuInf       1e-06;
+        m           1;
+        n           0;
+    }
+
+    BirdCarreauCoeffs
+    {
+        nu0         0.0142515;
+        nuInf       1e-06;
+        k           99.6;
+        n           0.1003;
+    }
+}
+
+air
+{
+    transportModel  Newtonian;
+    nu              1.48e-05;
+    rho             1;
+    CrossPowerLawCoeffs
+    {
+        nu0         1e-06;
+        nuInf       1e-06;
+        m           1;
+        n           0;
+    }
+
+    BirdCarreauCoeffs
+    {
+        nu0         0.0142515;
+        nuInf       1e-06;
+        k           99.6;
+        n           0.1003;
+    }
+}
+
+sigma               0.0;
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/turbulenceProperties b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/turbulenceProperties
new file mode 100644
index 0000000000..66b3b930f9
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/constant/turbulenceProperties
@@ -0,0 +1,20 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      turbulenceProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+simulationType  laminar;
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_0.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_0.dat
new file mode 100644
index 0000000000..4011922adc
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_0.dat
@@ -0,0 +1,8 @@
+   7.9884293e-03   2.3783940e-01
+   1.4152038e-01   2.3656941e-01
+   2.6403141e-01   2.3751989e-01
+   2.9446561e-01   2.5622366e-02
+   4.4247866e-01   2.5525707e-02
+   5.9726868e-01   2.3758999e-02
+   7.2911834e-01   2.3611326e-02
+   8.8481641e-01   2.5230361e-02
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_10.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_10.dat
new file mode 100644
index 0000000000..5d927f6e04
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_10.dat
@@ -0,0 +1,37 @@
+   5.9850936e-03   1.5916900e-01
+   3.0896857e-02   1.6130042e-01
+   5.4978374e-02   1.6662897e-01
+   8.1476736e-02   1.7142466e-01
+   1.0879230e-01   1.7462179e-01
+   1.3612091e-01   1.7622035e-01
+   1.6267144e-01   1.7462179e-01
+   1.9002613e-01   1.7302323e-01
+   2.1657665e-01   1.7142466e-01
+   2.4230997e-01   1.7142466e-01
+   2.6080579e-01   1.7142466e-01
+   2.9298983e-01   1.6929324e-01
+   3.2276571e-01   1.6662897e-01
+   3.4934666e-01   1.6130042e-01
+   3.7833576e-01   1.5650473e-01
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_12.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_12.dat
new file mode 100644
index 0000000000..2a9560a8ce
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_12.dat
@@ -0,0 +1,35 @@
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_14.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_14.dat
new file mode 100644
index 0000000000..6a021cd257
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_14.dat
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_16.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_16.dat
new file mode 100644
index 0000000000..de52892ccc
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_16.dat
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_18.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_18.dat
new file mode 100644
index 0000000000..a85b8bff95
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_18.dat
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_2.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_2.dat
new file mode 100644
index 0000000000..42f7867f22
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_2.dat
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_20.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_20.dat
new file mode 100644
index 0000000000..8f6840ef66
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_20.dat
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_22.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_22.dat
new file mode 100644
index 0000000000..c87aeb39f4
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_22.dat
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_4.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_4.dat
new file mode 100644
index 0000000000..fd834668c8
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_4.dat
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_6.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_6.dat
new file mode 100644
index 0000000000..b2cf491b08
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_6.dat
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diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_8.dat b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_8.dat
new file mode 100644
index 0000000000..a1dcd34495
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/experimentalData/data_8.dat
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+   8.1660033e-02   1.7402430e-01
+   1.1140624e-01   1.6674849e-01
+   1.3774224e-01   1.6396941e-01
+   1.6406680e-01   1.6512883e-01
+   1.8954209e-01   1.6628714e-01
+   2.1841777e-01   1.6632458e-01
+   2.4220265e-01   1.6466748e-01
+   2.6173784e-01   1.6413017e-01
+   2.9568964e-01   1.7092591e-01
+   3.5088663e-01   1.7324805e-01
+   3.7725856e-01   1.5809085e-01
+   4.0531763e-01   1.4687434e-01
+   4.3082557e-01   1.3677981e-01
+   4.5718444e-01   1.2612375e-01
+   4.8439095e-01   1.1603142e-01
+   5.1162524e-01   9.6374183e-02
+   5.3712338e-01   8.9655510e-02
+   5.8134173e-01   7.0582934e-02
+   5.9671215e-01   4.1908006e-02
+   6.1799491e-01   2.4493627e-02
+   6.4854957e-01   3.1284970e-02
+   6.7572342e-01   3.2445488e-02
+   7.0545166e-01   3.1358741e-02
+   7.2922674e-01   3.3077497e-02
+   7.5641529e-01   2.9174237e-02
+   7.8358261e-01   3.2585323e-02
+   8.0822330e-01   2.8678759e-02
+   8.3625951e-01   2.5339242e-02
+   8.6343989e-01   2.4249191e-02
+   8.8297018e-01   2.5399800e-02
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/plot b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/plot
new file mode 100755
index 0000000000..e633440777
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/plot
@@ -0,0 +1,62 @@
+#!/bin/bash
+cd "${0%/*}" || exit                                # Run from this directory
+. ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions        # Tutorial run functions
+#------------------------------------------------------------------------------
+
+plot_results() {
+
+    image="plots/surface_compare.png"
+    gnuplot<<EOF
+    reset
+
+    set terminal pngcairo font "helvetica,20" size 60.0in,70.0in
+    set grid
+    set xrange [0:1]
+    set yrange [0:0.25]
+    set xlabel "x [m]"
+    set ylabel "y [m]"
+    set output "$image"
+
+    set style rect fc lt -1 fs solid 0.15 noborder
+    set object  1 rect from 0.29, graph 0 to 0.59, graph 1
+
+    array exp_data[10] = \
+        ['4', '6', '8', '10', '12', '14', '16', '18', '20', '22']
+    array time[10] = \
+        ['0.4', '0.6', '0.8', '1', '1.2', '1.4', '1.6', '1.8', '2', '2.2']
+    set multiplot \
+        layout 5,2 \
+        title "Free surface elevation y vs horizontal position x" \
+        font "helvetica,42"
+
+    do for[k=1:10] {
+    set title "t = ".time[k]." [s]"
+    plot \
+        "postProcessing/freeSurface/".time[k]."/alpha.water_freeSurface.raw" \
+            w points pt 7 ps 2 lc rgb "red"  t "OpenFOAM", \
+        "experimentalData/data_".exp_data[k].".dat" \
+            w points pt 7 ps 3 lc rgb "black"  t "Liu et al."
+    }
+    unset multiplot
+EOF
+}
+
+
+#------------------------------------------------------------------------------
+
+# Requires gnuplot
+command -v gnuplot >/dev/null || {
+    echo "FOAM FATAL ERROR: gnuplot not found - skipping graph creation" 1>&2
+    exit 1
+}
+
+
+#------------------------------------------------------------------------------
+
+dirPlots="plots"
+[ -d "$dirPlots" ] || mkdir -p "$dirPlots"
+
+plot_results
+
+
+#------------------------------------------------------------------------------
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/blockMeshDict b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/blockMeshDict
new file mode 100644
index 0000000000..ba68ee8a01
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/blockMeshDict
@@ -0,0 +1,86 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+scale 0.01;
+
+vertices
+(
+    //x y z
+    (0 0 0)
+    (30 0 0)
+    (59 0 0)
+    (89.2 0 0)
+    (0 37 0)
+    (30 37 0)
+    (59 37 0)
+    (89.2 37 0)
+    (0 58 0)
+    (30 58 0)
+    (59 58 0)
+    (89.2 58 0)
+
+    (0 0 0.1)
+    (30 0 0.1)
+    (59 0 0.1)
+    (89.2 0 0.1)
+    (0 37 0.1)
+    (30 37 0.1)
+    (59 37 0.1)
+    (89.2 37 0.1)
+    (0 58 0.1)
+    (30 58 0.1)
+    (59 58 0.1)
+    (89.2 58 0.1)
+);
+
+blocks
+(
+    hex (0 1 5 4 12 13 17 16) (75 93 1) simpleGrading (1 1 1)
+    hex (1 2 6 5 13 14 18 17) porosity (73 93 1) simpleGrading (1 1 1)
+    hex (2 3 7 6 14 15 19 18) (76 93 1) simpleGrading (1 1 1)
+    hex (4 5 9 8 16 17 21 20) (75 53 1) simpleGrading (1 1 1)
+    hex (5 6 10 9 17 18 22 21) (73 53 1) simpleGrading (1 1 1)
+    hex (6 7 11 10 18 19 23 22) (76 53 1) simpleGrading (1 1 1)
+);
+
+patches
+(
+    wall leftWall
+    (
+        (0 12 16 4)
+        (4 16 20 8)
+    )
+    wall rightWall
+    (
+        (3 15 19 7)
+        (7 19 23 11)
+    )
+    wall lowerWall
+    (
+        (0 1 13 12)
+        (1 2 14 13)
+        (2 3 15 14)
+    )
+    patch atmosphere
+    (
+        (8 9 21 20)
+        (9 10 22 21)
+        (10 11 23 22)
+    )
+);
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/controlDict b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/controlDict
new file mode 100644
index 0000000000..d4e8f0a111
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/controlDict
@@ -0,0 +1,101 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      controlDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+application     interIsoFoam;
+
+startFrom       startTime;
+
+startTime       0;
+
+stopAt          endTime;
+
+endTime         4;
+
+deltaT          0.001;
+
+writeControl    adjustableRunTime;
+
+writeInterval   0.05;
+
+purgeWrite      0;
+
+writeFormat     ascii;
+
+writePrecision  16;
+
+writeCompression off;
+
+timeFormat      general;
+
+timePrecision   6;
+
+runTimeModifiable yes;
+
+adjustTimeStep  yes;
+
+maxCo           0.4;
+maxAlphaCo      0.4;
+
+maxDeltaT       1;
+
+functions
+{
+    freeSurface
+    {
+        type            surfaces;
+        libs            (sampling);
+        interpolationScheme cell;
+        writeControl    writeTime;
+        writeInterval   1;
+        surfaceFormat   raw;
+        fields
+        (
+            alpha.water
+        );
+        surfaces
+        (
+            freeSurface
+            {
+                type        isoSurfaceCell;
+                isoField    alpha.water;
+                isoValue    0.5;
+                interpolate false;
+                regularise  false;
+            }
+
+            alpha_001
+            {
+                type        isoSurfaceCell;
+                isoField    alpha.water;
+                isoValue    0.01;
+                interpolate false;
+                regularise  false;
+            }
+
+            alpha_099
+            {
+                type        isoSurfaceCell;
+                isoField    alpha.water;
+                isoValue    0.99;
+                interpolate false;
+                regularise  false;
+            }
+        );
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/decomposeParDict b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/decomposeParDict
new file mode 100644
index 0000000000..65fafbea56
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/decomposeParDict
@@ -0,0 +1,27 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains 4;
+
+method          simple;
+
+coeffs
+{
+    n           (2 2 1);
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/fvSchemes b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/fvSchemes
new file mode 100644
index 0000000000..3afe08b28c
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/fvSchemes
@@ -0,0 +1,59 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+    default         Euler;
+}
+
+gradSchemes
+{
+    default         Gauss linear;
+    grad(U)         Gauss linear;
+    grad(alpha1)    Gauss linear;
+}
+
+divSchemes
+{
+    div(rhoPhi,U)   Gauss limitedLinearV 1;
+    div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
+}
+
+laplacianSchemes
+{
+    default         Gauss linear corrected;
+}
+
+interpolationSchemes
+{
+    default         linear;
+}
+
+snGradSchemes
+{
+    default         corrected;
+}
+
+fluxRequired
+{
+    default         no;
+    p_rgh;
+    pcorr;
+    alpha.water;
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/fvSolution b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/fvSolution
new file mode 100644
index 0000000000..26e61ae732
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/fvSolution
@@ -0,0 +1,100 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+solvers
+{
+    "alpha.water.*"
+    {
+        isoFaceTol      1e-6;
+        surfCellTol     1e-6;
+        nAlphaBounds    3;
+        snapTol         1e-12;
+        clip            true;
+        reconstructionScheme isoAlpha;
+
+        nAlphaSubCycles 1;
+        cAlpha          1; // Read by interIsoFoam but not used
+    }
+
+    pcorr
+    {
+        solver          PCG;
+        preconditioner  DIC;
+        tolerance       1e-7;
+        relTol          0;
+    }
+
+    pcorrFinal
+    {
+        solver          PCG;
+        preconditioner  DIC;
+        tolerance       1e-7;
+        relTol          0;
+    }
+
+    p_rgh
+    {
+        solver          PCG;
+        preconditioner  DIC;
+        tolerance       1e-7;
+        relTol          0.0;
+    }
+
+    p_rghFinal
+    {
+        $p_rgh;
+        tolerance       1e-8;
+        relTol          0;
+    }
+
+    U
+    {
+        solver          PBiCG;
+        preconditioner  DILU;
+        tolerance       1e-06;
+        relTol          0;
+    }
+
+    UFinal
+    {
+        solver          PBiCG;
+        preconditioner  DILU;
+        tolerance       1e-06;
+        relTol          0;
+    }
+}
+
+PIMPLE
+{
+    momentumPredictor no;
+    nOuterCorrectors 1;
+    nCorrectors     3;
+    nNonOrthogonalCorrectors 0;
+}
+
+relaxationFactors
+{
+    fields
+    {
+    }
+    equations
+    {
+        ".*" 1;
+    }
+}
+
+
+// ************************************************************************* //
diff --git a/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/setFieldsDict b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/setFieldsDict
new file mode 100644
index 0000000000..1d8726b634
--- /dev/null
+++ b/tutorials/verificationAndValidation/multiphase/interIsoFoam/porousDamBreak/system/setFieldsDict
@@ -0,0 +1,55 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v2106                                 |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      setFieldsDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defaultFieldValues
+(
+    volScalarFieldValue alpha.water 0
+    volScalarFieldValue porosity 1
+);
+
+regions
+(
+    boxToCell
+    {
+        box (0 0 -1) (0.281 0.24 1);
+
+        fieldValues
+        (
+            volScalarFieldValue alpha.water 1
+        );
+    }
+    boxToCell
+    {
+        box (0.281 0 -1) (0.892 0.022 1);
+
+        fieldValues
+        (
+            volScalarFieldValue alpha.water 1
+        );
+    }
+   boxToCell
+    {
+        box (0.30 0 -1) (0.59 0.3 1);
+
+        fieldValues
+        (
+            volScalarFieldValue porosity 0.49
+        );
+    }
+);
+
+
+// ************************************************************************* //

From 7b6572b483c13afd8668d5bd579198bc18d3f590 Mon Sep 17 00:00:00 2001
From: "Scheufler, Henning" <henning.scheufler@dlr.de>
Date: Thu, 9 Dec 2021 17:08:03 +0100
Subject: [PATCH 4/4] ENH: geometricVoF: added profiling

---
 .../advectionSchemes/isoAdvection/isoAdvection.C            | 3 +++
 .../advectionSchemes/isoAdvection/isoAdvectionTemplates.C   | 3 +++
 .../reconstructionSchemes/isoSchemes/isoAlpha/isoAlpha.C    | 2 ++
 .../reconstructionSchemes/plicSchemes/gradAlpha/gradAlpha.C | 4 +++-
 .../reconstructionSchemes/plicSchemes/plicRDF/plicRDF.C     | 6 ++++++
 5 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.C b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.C
index 39d57acdfb..dc5cbeaece 100644
--- a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.C
+++ b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvection.C
@@ -39,6 +39,7 @@ License
 #include "meshTools.H"
 #include "OBJstream.H"
 #include "syncTools.H"
+#include "profiling.H"
 
 #include "addToRunTimeSelectionTable.H"
 
@@ -241,6 +242,7 @@ void Foam::isoAdvection::extendMarkedCells
 
 void Foam::isoAdvection::timeIntegratedFlux()
 {
+    addProfilingInFunction(geometricVoF);
     // Get time step
     const scalar dt = mesh_.time().deltaTValue();
 
@@ -607,6 +609,7 @@ void Foam::isoAdvection::checkIfOnProcPatch(const label facei)
 
 void Foam::isoAdvection::applyBruteForceBounding()
 {
+    addProfilingInFunction(geometricVoF);
     bool alpha1Changed = false;
 
     const scalar snapAlphaTol = dict_.getOrDefault<scalar>("snapTol", 0);
diff --git a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvectionTemplates.C b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvectionTemplates.C
index cb5a071b84..cf2d4c0d4a 100644
--- a/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvectionTemplates.C
+++ b/src/transportModels/geometricVoF/advectionSchemes/isoAdvection/isoAdvectionTemplates.C
@@ -119,6 +119,7 @@ void Foam::isoAdvection::limitFluxes
     const SuType& Su
 )
 {
+    addProfilingInFunction(geometricVoF);
     DebugInFunction << endl;
 
     const scalar aTol = 100*SMALL;          // Note: tolerances
@@ -232,6 +233,7 @@ void Foam::isoAdvection::boundFlux
     const SuType& Su
 )
 {
+    addProfilingInFunction(geometricVoF);
     DebugInFunction << endl;
     scalar rDeltaT = 1/mesh_.time().deltaTValue();
 
@@ -389,6 +391,7 @@ void Foam::isoAdvection::boundFlux
 template<class SpType, class SuType>
 void Foam::isoAdvection::advect(const SpType& Sp, const SuType& Su)
 {
+    addProfilingInFunction(geometricVoF);
     DebugInFunction << endl;
 
     if (mesh_.topoChanging())
diff --git a/src/transportModels/geometricVoF/reconstructionSchemes/isoSchemes/isoAlpha/isoAlpha.C b/src/transportModels/geometricVoF/reconstructionSchemes/isoSchemes/isoAlpha/isoAlpha.C
index 8dcd46b87d..e73aa3bfb4 100644
--- a/src/transportModels/geometricVoF/reconstructionSchemes/isoSchemes/isoAlpha/isoAlpha.C
+++ b/src/transportModels/geometricVoF/reconstructionSchemes/isoSchemes/isoAlpha/isoAlpha.C
@@ -28,6 +28,7 @@ License
 #include "isoAlpha.H"
 #include "addToRunTimeSelectionTable.H"
 #include "cutCellPLIC.H"
+#include "profiling.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -76,6 +77,7 @@ Foam::reconstruction::isoAlpha::isoAlpha
 
 void Foam::reconstruction::isoAlpha::reconstruct(bool forceUpdate)
 {
+    addProfilingInFunction(geometricVoF);
     const bool uptodate = alreadyReconstructed(forceUpdate);
 
     if (uptodate && !forceUpdate)
diff --git a/src/transportModels/geometricVoF/reconstructionSchemes/plicSchemes/gradAlpha/gradAlpha.C b/src/transportModels/geometricVoF/reconstructionSchemes/plicSchemes/gradAlpha/gradAlpha.C
index ea414981c8..14d899b4b3 100644
--- a/src/transportModels/geometricVoF/reconstructionSchemes/plicSchemes/gradAlpha/gradAlpha.C
+++ b/src/transportModels/geometricVoF/reconstructionSchemes/plicSchemes/gradAlpha/gradAlpha.C
@@ -29,7 +29,7 @@ License
 #include "fvc.H"
 #include "leastSquareGrad.H"
 #include "addToRunTimeSelectionTable.H"
-
+#include "profiling.H"
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
 namespace Foam
@@ -46,6 +46,7 @@ namespace reconstruction
 
 void Foam::reconstruction::gradAlpha::gradSurf(const volScalarField& phi)
 {
+    addProfilingInFunction(geometricVoF);
     leastSquareGrad<scalar> lsGrad("polyDegree1",mesh_.geometricD());
 
     zoneDistribute& exchangeFields = zoneDistribute::New(mesh_);
@@ -123,6 +124,7 @@ Foam::reconstruction::gradAlpha::gradAlpha
 
 void Foam::reconstruction::gradAlpha::reconstruct(bool forceUpdate)
 {
+    addProfilingInFunction(geometricVoF);
     const bool uptodate = alreadyReconstructed(forceUpdate);
 
     if (uptodate && !forceUpdate)
diff --git a/src/transportModels/geometricVoF/reconstructionSchemes/plicSchemes/plicRDF/plicRDF.C b/src/transportModels/geometricVoF/reconstructionSchemes/plicSchemes/plicRDF/plicRDF.C
index fd766484c2..dbdcb9b21a 100644
--- a/src/transportModels/geometricVoF/reconstructionSchemes/plicSchemes/plicRDF/plicRDF.C
+++ b/src/transportModels/geometricVoF/reconstructionSchemes/plicSchemes/plicRDF/plicRDF.C
@@ -30,6 +30,7 @@ License
 #include "fvc.H"
 #include "leastSquareGrad.H"
 #include "addToRunTimeSelectionTable.H"
+#include "profiling.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -47,6 +48,7 @@ namespace reconstruction
 
 void Foam::reconstruction::plicRDF::interpolateNormal()
 {
+    addProfilingInFunction(geometricVoF);
     scalar dt = mesh_.time().deltaTValue();
     zoneDistribute& exchangeFields = zoneDistribute::New(mesh_);
 
@@ -159,6 +161,7 @@ void Foam::reconstruction::plicRDF::interpolateNormal()
 
 void Foam::reconstruction::plicRDF::gradSurf(const volScalarField& phi)
 {
+    addProfilingInFunction(geometricVoF);
     leastSquareGrad<scalar> lsGrad("polyDegree1", mesh_.geometricD());
     zoneDistribute& exchangeFields = zoneDistribute::New(mesh_);
 
@@ -205,6 +208,7 @@ void Foam::reconstruction::plicRDF::gradSurf(const volScalarField& phi)
 
 void Foam::reconstruction::plicRDF::setInitNormals(bool interpolate)
 {
+    addProfilingInFunction(geometricVoF);
     zoneDistribute& exchangeFields = zoneDistribute::New(mesh_);
 
     interfaceLabels_.clear();
@@ -239,6 +243,7 @@ void Foam::reconstruction::plicRDF::calcResidual
     List<normalRes>& normalResidual
 )
 {
+    addProfilingInFunction(geometricVoF);
     zoneDistribute& exchangeFields = zoneDistribute::New(mesh_);
     exchangeFields.setUpCommforZone(interfaceCell_,false);
 
@@ -377,6 +382,7 @@ Foam::reconstruction::plicRDF::plicRDF
 
 void Foam::reconstruction::plicRDF::reconstruct(bool forceUpdate)
 {
+    addProfilingInFunction(geometricVoF);
     zoneDistribute& exchangeFields = zoneDistribute::New(mesh_);
     const bool uptodate = alreadyReconstructed(forceUpdate);