ENH: Adding overBuoyantPimpleFoam and tutorial

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleFoam/Make/files

@@ -0,0 +1,3 @@
+overBuoyantPimpleDyMFoam.C
+
+EXE = $(FOAM_APPBIN)/overBuoyantPimpleDyMFoam

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleFoam/Make/options

@@ -0,0 +1,30 @@
+EXE_INC = \
+    -I$(FOAM_SOLVERS)/heatTransfer/buoyantPimpleFoam \
+    -I$(FOAM_SOLVERS)/compressible/rhoPimpleFoam/overRhoPimpleDyMFoam \
+    -I$(LIB_SRC)/finiteVolume/lnInclude \
+    -I$(LIB_SRC)/sampling/lnInclude \
+    -I$(LIB_SRC)/dynamicFvMesh/lnInclude \
+    -I$(LIB_SRC)/dynamicMesh/lnInclude \
+    -I$(LIB_SRC)/overset/lnInclude \
+    -I$(LIB_SRC)/meshTools/lnInclude \
+    -I$(LIB_SRC)/transportModels/compressible/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/radiation/lnInclude \
+    -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
+    -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude
+
+EXE_LIBS = \
+    -lfiniteVolume \
+    -lsampling \
+    -lmeshTools \
+    -lfvOptions \
+    -lcompressibleTransportModels \
+    -lfluidThermophysicalModels \
+    -lradiationModels \
+    -lspecie \
+    -lturbulenceModels \
+    -lcompressibleTurbulenceModels \
+    -latmosphericModels \
+    -loverset \
+    -ldynamicFvMesh \
+    -ltopoChangerFvMesh

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleFoam/correctPhi.H

@@ -0,0 +1,91 @@
+if (mesh.changing())
+{
+    volVectorField::Boundary& bfld = U.boundaryFieldRef();
+    forAll(bfld, patchi)
+    {
+        if (bfld[patchi].fixesValue())
+        {
+            bfld[patchi].initEvaluate();
+        }
+    }
+
+    surfaceScalarField::Boundary& phiBfld = phi.boundaryFieldRef();
+    forAll(bfld, patchi)
+    {
+        if (bfld[patchi].fixesValue())
+        {
+            bfld[patchi].evaluate();
+
+            phiBfld[patchi] =
+                rho.boundaryField()[patchi]
+              * (
+                    bfld[patchi]
+                  & mesh.Sf().boundaryField()[patchi]
+                );
+        }
+    }
+}
+    // Initialize BCs list for pcorr to zero-gradient
+    wordList pcorrTypes
+    (
+        p.boundaryField().size(),
+        zeroGradientFvPatchScalarField::typeName
+    );
+
+    // Set BCs of pcorr to fixed-value for patches at which p is fixed
+    forAll(p.boundaryField(), patchi)
+    {
+        if (p.boundaryField()[patchi].fixesValue())
+        {
+            pcorrTypes[patchi] = fixedValueFvPatchScalarField::typeName;
+        }
+    }
+
+    volScalarField pcorr
+    (
+        IOobject
+        (
+            "pcorr",
+            runTime.timeName(),
+            mesh,
+            IOobject::NO_READ,
+            IOobject::NO_WRITE
+        ),
+        mesh,
+        dimensionedScalar(p.dimensions(), Zero),
+        pcorrTypes
+    );
+
+    mesh.setFluxRequired(pcorr.name());
+
+{
+    dimensionedScalar rAUf("rAUf", dimTime, 1.0);
+
+    while (pimple.correctNonOrthogonal())
+    {
+        fvScalarMatrix pcorrEqn
+        (
+            fvm::ddt(psi, pcorr)
+          + fvc::div(phi)
+          - fvm::laplacian(rAUf, pcorr)
+         ==
+            divrhoU()
+        );
+
+        //pcorrEqn.solve(mesh.solver(pcorr.select(pimple.finalInnerIter())));
+        //Bypass virtual layer
+        const dictionary& d = mesh.solver
+            (
+                pcorr.select
+                (
+                    pimple.finalInnerIter()
+                )
+            );
+        mesh.fvMesh::solve(pcorrEqn, d);
+
+        if (pimple.finalNonOrthogonalIter())
+        {
+            phi += pcorrEqn.flux();
+        }
+    }
+}

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleFoam/createFieldRefs.H

@@ -0,0 +1 @@
+const volScalarField& psi = thermo.psi();

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleFoam/createFields.H

@@ -0,0 +1,126 @@
+Info<< "Reading thermophysical properties\n" << endl;
+
+autoPtr<rhoThermo> pThermo(rhoThermo::New(mesh));
+rhoThermo& thermo = pThermo();
+thermo.validate(args.executable(), "h", "e");
+
+volScalarField rho
+(
+    IOobject
+    (
+        "rho",
+        runTime.timeName(),
+        mesh,
+        IOobject::NO_READ,
+        IOobject::NO_WRITE
+    ),
+    thermo.rho()
+);
+
+volScalarField& p = thermo.p();
+
+Info<< "Reading field U\n" << endl;
+volVectorField U
+(
+    IOobject
+    (
+        "U",
+        runTime.timeName(),
+        mesh,
+        IOobject::MUST_READ,
+        IOobject::AUTO_WRITE
+    ),
+    mesh
+);
+
+#include "compressibleCreatePhi.H"
+
+
+Info<< "Creating turbulence model\n" << endl;
+autoPtr<compressible::turbulenceModel> turbulence
+(
+    compressible::turbulenceModel::New
+    (
+        rho,
+        U,
+        phi,
+        thermo
+    )
+);
+
+
+#include "readGravitationalAcceleration.H"
+#include "readhRef.H"
+#include "gh.H"
+
+
+Info<< "Reading field p_rgh\n" << endl;
+volScalarField p_rgh
+(
+    IOobject
+    (
+        "p_rgh",
+        runTime.timeName(),
+        mesh,
+        IOobject::MUST_READ,
+        IOobject::AUTO_WRITE
+    ),
+    mesh
+);
+
+// Force p_rgh to be consistent with p
+p_rgh = p - rho*gh;
+
+mesh.setFluxRequired(p_rgh.name());
+
+label pRefCell = 0;
+scalar pRefValue = 0.0;
+
+if (p_rgh.needReference())
+{
+    setRefCell
+    (
+        p,
+        p_rgh,
+        pimple.dict(),
+        pRefCell,
+        pRefValue
+    );
+
+    p += dimensionedScalar
+    (
+        "p",
+        p.dimensions(),
+        pRefValue - getRefCellValue(p, pRefCell)
+    );
+}
+
+dimensionedScalar initialMass("initialMass", fvc::domainIntegrate(rho));
+
+#include "createDpdt.H"
+
+#include "createK.H"
+
+#include "createMRF.H"
+#include "createRadiationModel.H"
+#include "createFvOptions.H"
+
+//- Overset specific
+
+// Add solver-specific interpolations
+{
+    wordHashSet& nonInt =
+        const_cast<wordHashSet&>(Stencil::New(mesh).nonInterpolatedFields());
+
+    nonInt.insert("HbyA");
+    nonInt.insert("grad(p_rgh)");
+    nonInt.insert("surfaceIntegrate(phi)");
+    nonInt.insert("surfaceIntegrate(phiHbyA)");
+    nonInt.insert("cellMask");
+    nonInt.insert("cellDisplacement");
+    nonInt.insert("interpolatedCells");
+    nonInt.insert("cellInterpolationWeight");
+}
+
+// Mask field for zeroing out contributions on hole cells
+#include "createCellMask.H"

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleFoam/overBuoyantPimpleDyMFoam.C

@@ -0,0 +1,212 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2019 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+
+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/>.
+
+Application
+    overBuoyantPimpleDymFoam
+
+Group
+    grpHeatTransferSolvers
+
+Description
+    Transient solver for buoyant, turbulent flow of compressible fluids for
+    ventilation and heat-transfer with overset feature
+
+    Turbulence is modelled using a run-time selectable compressible RAS or
+    LES model.
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvCFD.H"
+#include "dynamicFvMesh.H"
+#include "rhoThermo.H"
+#include "turbulentFluidThermoModel.H"
+#include "radiationModel.H"
+#include "fvOptions.H"
+#include "pimpleControl.H"
+#include "pressureControl.H"
+
+#include "CorrectPhi.H"
+#include "cellCellStencilObject.H"
+#include "localMin.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+int main(int argc, char *argv[])
+{
+    argList::addNote
+    (
+        "Transient solver for buoyant, turbulent fluid flow"
+        " of compressible fluids, including radiation."
+    );
+
+    #include "postProcess.H"
+
+    #include "addCheckCaseOptions.H"
+    #include "setRootCaseLists.H"
+    #include "createTime.H"
+    #include "createDynamicFvMesh.H"
+    #include "createDyMControls.H"
+    #include "createFields.H"
+    #include "createFieldRefs.H"
+    #include "initContinuityErrs.H"
+
+    #include "createRhoUfIfPresent.H"
+    #include "createControls.H"
+
+    #include "compressibleCourantNo.H"
+    #include "setInitialDeltaT.H"
+
+    turbulence->validate();
+
+    // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+    Info<< "\nStarting time loop\n" << endl;
+
+    while (runTime.run())
+    {
+        #include "readTimeControls.H"
+
+        #include "readControls.H"
+        #include "readDyMControls.H"
+
+        #include "compressibleCourantNo.H"
+        #include "setDeltaT.H"
+
+        // Store divrhoU from the previous mesh so that it can be mapped
+        // and used in correctPhi to ensure the corrected phi has the
+        // same divergence
+        autoPtr<volScalarField> divrhoU;
+        if (correctPhi)
+        {
+            divrhoU.reset
+            (
+                new volScalarField
+                (
+                    "divrhoU",
+                    fvc::div(fvc::absolute(phi, rho, U))
+                )
+            );
+        }
+
+
+        ++runTime;
+
+        Info<< "Time = " << runTime.timeName() << nl << endl;
+
+        // --- Pressure-velocity PIMPLE corrector loop
+        while (pimple.loop())
+        {
+            if (pimple.firstIter() || moveMeshOuterCorrectors)
+            {
+                // Do any mesh changes
+                mesh.update();
+
+                if (mesh.changing())
+                {
+                    MRF.update();
+
+                    #include "setCellMask.H"
+
+                    const surfaceScalarField faceMaskOld
+                    (
+                        localMin<scalar>(mesh).interpolate(cellMask.oldTime())
+                    );
+
+                    // Zero Uf on old faceMask (H-I)
+                    rhoUf() *= faceMaskOld;
+
+                    //fvc::correctRhoUf(rhoUfint, rho, U, phi);
+                    surfaceVectorField rhoUfint(fvc::interpolate(rho*U));
+
+                    // Update Uf and phi on new C-I faces
+                    rhoUf() += (1-faceMaskOld)*rhoUfint;
+
+                    // Update Uf boundary
+                    forAll(rhoUf().boundaryField(), patchI)
+                    {
+                        rhoUf().boundaryFieldRef()[patchI] =
+                            rhoUfint.boundaryField()[patchI];
+                    }
+
+                    // Calculate absolute flux from the mapped surface velocity
+                    phi = mesh.Sf() & rhoUf();
+
+                    if (correctPhi)
+                    {
+                        #include "correctPhi.H"
+                    }
+
+                    // Zero phi on current H-I
+                    const surfaceScalarField faceMask
+                    (
+                        localMin<scalar>(mesh).interpolate(cellMask)
+                    );
+
+                    phi *= faceMask;
+                    U   *= cellMask;
+
+                     // Make the fluxes relative to the mesh-motion
+                    fvc::makeRelative(phi, rho, U);
+                }
+
+                if (checkMeshCourantNo)
+                {
+                    #include "meshCourantNo.H"
+                }
+            }
+
+            if (pimple.firstIter())
+            {
+                #include "rhoEqn.H"
+            }
+
+            #include "UEqn.H"
+            #include "EEqn.H"
+
+            // --- Pressure corrector loop
+            while (pimple.correct())
+            {
+                #include "pEqn.H"
+            }
+
+            if (pimple.turbCorr())
+            {
+                turbulence->correct();
+            }
+        }
+
+        rho = thermo.rho();
+
+        runTime.write();
+
+        runTime.printExecutionTime(Info);
+    }
+
+    Info<< "End\n" << endl;
+
+    return 0;
+}
+
+
+// ************************************************************************* //

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleFoam/pEqn.H

@@ -0,0 +1,130 @@
+
+dimensionedScalar compressibility = fvc::domainIntegrate(psi);
+bool compressible = (compressibility.value() > SMALL);
+
+rho = thermo.rho();
+
+// Thermodynamic density needs to be updated by psi*d(p) after the
+// pressure solution
+const volScalarField psip0(psi*p);
+
+volScalarField rAU(1.0/UEqn.A());
+mesh.interpolate(rAU);
+
+surfaceScalarField rhorAUf("rhorAUf", fvc::interpolate(rho*rAU));
+volVectorField HbyA(constrainHbyA(rAU*UEqn.H(), U, p_rgh));
+
+surfaceScalarField phig(-rhorAUf*ghf*fvc::snGrad(rho)*mesh.magSf());
+
+surfaceScalarField phiHbyA
+(
+    "phiHbyA",
+    fvc::flux(rho*HbyA) + phig
+);
+
+if (ddtCorr)
+{
+    surfaceScalarField faceMaskOld
+    (
+        localMin<scalar>(mesh).interpolate(cellMask.oldTime())
+    );
+
+    phiHbyA +=
+        faceMaskOld*MRF.zeroFilter(rhorAUf*fvc::ddtCorr(rho, U, phi));
+}
+
+MRF.makeRelative(fvc::interpolate(rho), phiHbyA);
+
+// Update the pressure BCs to ensure flux consistency
+constrainPressure(p_rgh, rho, U, phiHbyA, rhorAUf, MRF);
+
+fvScalarMatrix p_rghDDtEqn
+(
+    fvc::ddt(rho) + psi*correction(fvm::ddt(p_rgh))
+  + fvc::div(phiHbyA)
+  ==
+    fvOptions(psi, p_rgh, rho.name())
+);
+
+while (pimple.correctNonOrthogonal())
+{
+    fvScalarMatrix p_rghEqn
+    (
+        p_rghDDtEqn
+      - fvm::laplacian(rhorAUf, p_rgh)
+    );
+
+    p_rghEqn.solve(mesh.solver(p_rgh.select(pimple.finalInnerIter())));
+
+    if (pimple.finalNonOrthogonalIter())
+    {
+        // Calculate the conservative fluxes
+        phi = phiHbyA + p_rghEqn.flux();
+
+        // Explicitly relax pressure for momentum corrector
+        p_rgh.relax();
+
+        // Correct the momentum source with the pressure gradient flux
+        // calculated from the relaxed pressure
+        U =
+            cellMask*
+            (
+                HbyA + rAU*fvc::reconstruct((phig + p_rghEqn.flux())/rhorAUf)
+            );
+        U.correctBoundaryConditions();
+        fvOptions.correct(U);
+        K = 0.5*magSqr(U);
+    }
+}
+
+p = p_rgh + rho*gh;
+
+#include "rhoEqn.H"
+#include "compressibleContinuityErrs.H"
+
+if (p_rgh.needReference())
+{
+    if (!compressible)
+    {
+        p += dimensionedScalar
+        (
+            "p",
+            p.dimensions(),
+            pRefValue - getRefCellValue(p, pRefCell)
+        );
+    }
+    else
+    {
+        p += (initialMass - fvc::domainIntegrate(psi*p))
+            /compressibility;
+        thermo.correctRho(psi*p - psip0);
+        rho = thermo.rho();
+        p_rgh = p - rho*gh;
+    }
+}
+else
+{
+    thermo.correctRho(psi*p - psip0);
+}
+
+rho = thermo.rho();
+
+{
+     fvc::correctRhoUf(rhoUf, rho, U, phi);
+}
+
+if (thermo.dpdt())
+{
+    dpdt = fvc::ddt(p);
+
+    if (mesh.moving())
+    {
+        dpdt -= fvc::div(fvc::meshPhi(rho, U), p);
+    }
+}
+
+surfaceScalarField faceMask
+(
+    localMin<scalar>(mesh).interpolate(cellMask)
+);
+phi *= faceMask;

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleFoam/readControls.H

@@ -0,0 +1,9 @@
+#include "readTimeControls.H"
+
+correctPhi = pimple.dict().lookupOrDefault("correctPhi", false);
+
+checkMeshCourantNo =
+    pimple.dict().lookupOrDefault("checkMeshCourantNo", false);
+
+
+ddtCorr = pimple.dict().lookupOrDefault("ddtCorr", true);

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/T

@@ -0,0 +1,57 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      T;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 1 0 0 0];
+
+
+internalField   uniform 300;
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+    }
+    walls
+    {
+        type            zeroGradient;
+    }
+    inlet
+    {
+        type            zeroGradient;
+    }
+    outlet
+    {
+        type            zeroGradient;
+    }
+    hole
+    {
+        type            fixedValue;
+        value           uniform 400;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/U

@@ -0,0 +1,60 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volVectorField;
+    location    "0";
+    object      U;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 -1 0 0 0 0];
+
+
+internalField   uniform (0 0 0);
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+    }
+    walls
+    {
+        type            uniformFixedValue;
+        uniformValue    uniform (0 0 0);
+    }
+    inlet
+    {
+        type            uniformFixedValue;
+        uniformValue    uniform (0 0 0);
+    }
+    outlet
+    {
+        type            uniformFixedValue;
+        uniformValue    uniform (0 0 0);
+    }
+    hole
+    {
+        type            movingWallVelocity;
+        value           uniform (0 0 0);
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/alphat

@@ -0,0 +1,61 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      alphat;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [1 -1 -1 0 0 0 0];
+
+
+internalField   uniform 0;
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+        value           uniform 0;
+    }
+    walls
+    {
+        type            compressible::alphatWallFunction;
+        value           uniform 0;
+    }
+    inlet
+    {
+        type            compressible::alphatWallFunction;
+        value           uniform 0;
+    }
+    outlet
+    {
+        type            compressible::alphatWallFunction;
+        value           uniform 0;
+    }
+    hole
+    {
+        type            compressible::alphatWallFunction;
+        value           uniform 0;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/epsilon

@@ -0,0 +1,61 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      epsilon;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 2 -3 0 0 0 0];
+
+
+internalField   uniform 0.1;
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+        value           uniform 0.1;
+    }
+    walls
+    {
+        type            epsilonWallFunction;
+        value           uniform 0.1;
+    }
+    inlet
+    {
+        type            epsilonWallFunction;
+        value           uniform 0.1;
+    }
+    outlet
+    {
+        type            epsilonWallFunction;
+        value           uniform 0.1;
+    }
+    hole
+    {
+        type            epsilonWallFunction;
+        value           uniform 0.1;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/k

@@ -0,0 +1,61 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      k;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 2 -2 0 0 0 0];
+
+
+internalField   uniform 0.01;
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+        value           uniform 0.01;
+    }
+    walls
+    {
+        type            kqRWallFunction;
+        value           uniform 0.01;
+    }
+    inlet
+    {
+        type            kqRWallFunction;
+        value           uniform 0.01;
+    }
+    outlet
+    {
+        type            kqRWallFunction;
+        value           uniform 0.01;
+    }
+    hole
+    {
+        type            kqRWallFunction;
+        value           uniform 0.01;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/nut

@@ -0,0 +1,61 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      nut;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 2 -1 0 0 0 0];
+
+
+internalField   uniform 0;
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+        value           uniform 0;
+    }
+    walls
+    {
+        type            nutkWallFunction;
+        value           uniform 0;
+    }
+    inlet
+    {
+        type            nutkWallFunction;
+        value           uniform 0;
+    }
+    outlet
+    {
+        type            nutkWallFunction;
+        value           uniform 0;
+    }
+    hole
+    {
+        type            nutkWallFunction;
+        value           uniform 0;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/p

@@ -0,0 +1,60 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      p;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [1 -1 -2 0 0 0 0];
+
+
+internalField   uniform 100000;
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+    }
+    walls
+    {
+        type            calculated;
+        value           uniform 100000;
+    }
+    inlet
+    {
+        type            calculated;
+        value           uniform 100000;
+    }
+    outlet
+    {
+        type            calculated;
+        value           uniform 100000;
+    }
+    hole
+    {
+        type            calculated;
+        value           uniform 100000;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/p_rgh

@@ -0,0 +1,61 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      p_rgh;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [1 -1 -2 0 0 0 0];
+
+
+internalField   uniform 100000;
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+        value           uniform 100000;
+    }
+    walls
+    {
+        type            fixedFluxPressure;
+        value           uniform 100000;
+    }
+    inlet
+    {
+        type            fixedFluxPressure;
+        value           uniform 100000;
+    }
+    outlet
+    {
+        type            fixedFluxPressure;
+        value           uniform 100000;
+    }
+    hole
+    {
+        type            fixedFluxPressure;
+        value           uniform 100000;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/pointDisplacement

@@ -0,0 +1,63 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       pointVectorField;
+    location    "0";
+    object      pointDisplacement;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 0 0 0 0 0];
+
+
+internalField   uniform (0 0 0);
+
+boundaryField
+{
+    overset1
+    {
+        type            zeroGradient;
+        patchType       overset;
+    }
+    walls
+    {
+        type            uniformFixedValue;
+        value           uniform (0 0 0);
+        uniformValue    constant (0 0 0);
+    }
+    inlet
+    {
+        type            uniformFixedValue;
+        value           uniform (0 0 0);
+        uniformValue    constant (0 0 0);
+    }
+    outlet
+    {
+        type            uniformFixedValue;
+        value           uniform (0 0 0);
+        uniformValue    constant (0 0 0);
+    }
+    hole
+    {
+        type            zeroGradient;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/zoneID

@@ -0,0 +1,57 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      zoneID;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 0 0 0 0];
+
+
+internalField   uniform 0; 
+
+boundaryField
+{
+    overset1
+    {
+        type            overset;
+        value           uniform 1;
+    }
+    walls
+    {
+        type            zeroGradient;
+    }
+    inlet
+    {
+        type            zeroGradient;
+    }
+    outlet
+    {
+        type            zeroGradient;
+    }
+    hole
+    {
+        type            zeroGradient;
+    }
+    frontAndBack
+    {
+        type            empty;
+    }
+    frontAndBack1
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/Allclean

@@ -0,0 +1,10 @@
+#!/bin/sh
+cd ${0%/*} || exit 1                        # Run from this directory
+. $WM_PROJECT_DIR/bin/tools/CleanFunctions  # Tutorial clean functions
+
+cleanCase0
+
+rm -f constant/polyMesh/boundary
+rm -f constant/polyMesh/zoneID
+
+#------------------------------------------------------------------------------

tutorials/heatTransfer/overBuoyantPimpleFoam/Allrun

@@ -0,0 +1,17 @@
+#!/bin/sh
+cd ${0%/*} || exit 1                        # Run from this directory
+. $WM_PROJECT_DIR/bin/tools/RunFunctions    # Tutorial run functions
+
+./Allrun.pre
+
+# Serial
+runApplication $(getApplication)
+
+# Parallel
+#runApplication decomposePar -cellDist
+#runParallel  $(getApplication)
+
+#post
+runApplication foamToVTK
+
+#------------------------------------------------------------------------------

tutorials/heatTransfer/overBuoyantPimpleFoam/Allrun.pre

@@ -0,0 +1,20 @@
+#!/bin/sh
+cd ${0%/*} || exit 1                        # Run from this directory
+. $WM_PROJECT_DIR/bin/tools/RunFunctions    # Tutorial run functions
+
+runApplication blockMesh
+
+# Select cellSets
+runApplication -s 1 topoSet
+
+runApplication subsetMesh box -patch hole -overwrite
+
+# Select cellSets
+runApplication -s 2 topoSet
+
+restore0Dir
+
+# Use cellSets to write zoneID
+runApplication setFields
+
+#------------------------------------------------------------------------------

tutorials/heatTransfer/overBuoyantPimpleFoam/constant/dynamicMeshDict

@@ -0,0 +1,39 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  plus-overset                          |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      dynamicMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dynamicFvMesh       dynamicOversetFvMesh;
+
+dynamicOversetFvMeshCoeffs
+{
+//    layerRelax 0.3;
+}
+
+solver          multiSolidBodyMotionSolver;
+
+multiSolidBodyMotionSolverCoeffs
+{
+    movingZone1
+    {
+        solidBodyMotionFunction oscillatingLinearMotion;
+        oscillatingLinearMotionCoeffs
+        {
+            amplitude       (0.035 0 0);
+            omega           2.094395;
+        }
+    }
+}
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/constant/g

@@ -0,0 +1,22 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       uniformDimensionedVectorField;
+    location    "constant";
+    object      g;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 -2 0 0 0 0];
+value           (0 -9.81 0);
+
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/constant/thermophysicalProperties

@@ -0,0 +1,49 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "constant";
+    object      thermophysicalProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+thermoType
+{
+    type            heRhoThermo;
+    mixture         pureMixture;
+    transport       sutherland;
+    thermo          hConst;
+    equationOfState perfectGas;
+    specie          specie;
+    energy          sensibleEnthalpy;
+}
+
+mixture
+{
+    specie
+    {
+        molWeight       28.9;
+    }
+    thermodynamics
+    {
+        Cp              1007;
+        Hf              0;
+    }
+    transport
+    {
+        As              1.4792e-06;
+        Ts              116;
+    }
+}
+
+dpdt    true;
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/constant/turbulenceProperties

@@ -0,0 +1,28 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      turbulenceProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+simulationType   laminar;
+
+RAS
+{
+    RASModel    kEpsilon;
+
+    turbulence      on;
+
+    printCoeffs     on;
+}
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/system/blockMeshDict

@@ -0,0 +1,122 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+scale   0.001;
+
+vertices
+(
+    ( -2.00  0.0  0)
+    ( 107.00  0.0  0)
+    ( 107.00  45.0  0)
+    ( -2.00  45.0  0)
+    ( -2.00  0.0  10)
+    ( 107.00  0.0  10)
+    ( 107.00  45.0  10)
+    ( -2.00  45.0  10)
+
+    // movingZone1
+    ( 44.5  5.0  0)
+    ( 60.5  5.0  0)
+    ( 60.5  40.0  0)
+    ( 44.5  40.0  0)
+    ( 44.5  5.0  10)
+    ( 60.5  5.0  10)
+    ( 60.5  40.0  10)
+    ( 44.5  40.0  10)
+);
+
+blocks
+(
+    hex (0 1 2 3 4 5 6 7) (109 55 1) simpleGrading (1 1 1)
+    hex (8 9 10 11 12 13 14 15) movingZone1 (16 48 1) simpleGrading (1 1 1)
+);
+
+edges
+(
+);
+
+boundary
+(
+    overset1
+    {
+        type        overset;
+        faces
+        (
+            ( 8 12 15 11)
+            (10 14 13  9)
+            (11 15 14 10)
+            ( 9 13 12  8)
+        );
+    }
+
+
+    walls
+    {
+        type wall;
+        faces
+        (
+            (3 7 6 2)
+            (1 5 4 0)
+        );
+    }
+
+    inlet
+    {
+        type wall;
+        faces
+        (
+            (0 4 7 3)
+        );
+    }
+
+    outlet
+    {
+        type wall;
+        faces
+        (
+            (2 6 5 1)
+        );
+    }
+
+    // Populated by subsetMesh
+    hole
+    {
+        type wall;
+        faces ();
+    }
+
+    frontAndBack
+    {
+        type empty;
+        faces
+        (
+            (0 3 2 1)
+            (4 5 6 7)
+        );
+    }
+
+    frontAndBack1
+    {
+        type empty;
+        faces
+        (
+            ( 8 11 10  9)
+            (12 13 14 15)
+        );
+    }
+);
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/system/controlDict

@@ -0,0 +1,58 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      controlDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+DebugSwitches
+{
+    overset                 0;
+    dynamicOversetFvMesh    0;
+    cellVolumeWeight        0;
+}
+
+application     overBuoyantPimpleDyMFoam;
+
+startFrom       startTime;
+
+startTime       0;
+
+stopAt          endTime;
+
+endTime         1.5;
+
+deltaT          0.001;
+
+writeControl    adjustableRunTime;
+
+writeInterval   0.05;
+
+purgeWrite      0;
+
+writeFormat     ascii;
+
+writePrecision  10;
+
+writeCompression off;
+
+timeFormat      general;
+
+timePrecision   6;
+
+runTimeModifiable true;
+
+adjustTimeStep  no;
+
+maxCo          1;
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/system/decomposeParDict

@@ -0,0 +1,30 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  plus                                  |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    note        "mesh decomposition control dictionary";
+    object      decomposeParDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+numberOfSubdomains  4;
+
+
+method          scotch;
+
+hierarchicalCoeffs
+{
+    n           (2 1 1);
+    delta       0.001;
+    order       xyz;
+}
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/system/fvSchemes

@@ -0,0 +1,79 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+    default         Euler;
+}
+
+gradSchemes
+{
+    default         Gauss linear;
+}
+
+divSchemes
+{
+    default         none;
+    div(phi,U)      Gauss upwind;
+
+    div(phi,epsilon) Gauss limitedLinear 1;
+    div(phi,k)       Gauss limitedLinear 1;
+    div(phi,h)       Gauss limitedLinear 1;
+    div(phi,K)       Gauss linear;
+
+    div(((rho*nuEff)*dev2(T(grad(U)))))  Gauss linear;
+    div(meshPhi,p)  Gauss linear;
+}
+
+laplacianSchemes
+{
+    default         Gauss linear corrected;
+    laplacian(diffusivity,cellDisplacement)  Gauss linear corrected;
+}
+
+interpolationSchemes
+{
+    default         linear;
+}
+
+snGradSchemes
+{
+    default         corrected;
+}
+
+oversetInterpolation
+{
+    method          cellVolumeWeight;
+    //method inverseDistance;
+
+    searchBox           (-0.002 0 0)(0.107 0.5 0.01);
+    searchBoxDivisions  (200 200 1);
+}
+
+fluxRequired
+{
+    default         no;
+    pcorr           ;
+    p               ;
+}
+
+oversetInterpolationSuppressed
+{
+    grad(p_rgh);
+    surfaceIntegrate(phiHbyA);
+}
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/system/fvSolution

@@ -0,0 +1,110 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+solvers
+{
+    cellDisplacement
+    {
+        solver          PCG;
+        preconditioner  DIC;
+
+        tolerance       1e-06;
+        relTol          0;
+        maxIter         100;
+    }
+
+    "(rho|h)"
+    {
+        solver          PBiCGStab;
+        preconditioner  DILU;
+        tolerance       1e-8;
+        relTol          0.1;
+    }
+
+    "(rho|h)Final"
+    {
+        $rho;
+        tolerance       1e-8;
+        relTol          0;
+    }
+
+    p_rgh
+    {
+        solver          PBiCGStab;
+        preconditioner  DILU;
+        tolerance       1e-11;
+        relTol          0.01;
+    }
+
+    p_rghFinal
+    {
+        $p_rgh;
+        relTol          0;
+    }
+
+    pcorr
+    {
+        $p_rghFinal;
+        preconditioner  DIC;
+    }
+
+    pcorrFinal
+    {
+        $pcorr;
+        relTol          0;
+    }
+
+    "(U|k|epsilon)"
+    {
+        solver          smoothSolver;
+        smoother        symGaussSeidel;
+        tolerance       1e-6;
+        relTol          0;
+    }
+
+    "(U|k|epsilon)Final"
+    {
+        $U;
+        tolerance       1e-6;
+        relTol          0;
+    }
+}
+
+PIMPLE
+{
+    momentumPredictor   true;
+    correctPhi          false;
+    checkMeshCourantNo  yes;
+    nOuterCorrectors    1;
+    nCorrectors         4;
+    nNonOrthogonalCorrectors 0;
+    ddtCorr             true;
+    pRefCell            0;
+    pRefValue           1e5;
+}
+
+relaxationFactors
+{
+   fields
+   {
+   }
+   equations
+   {
+       ".*"             1;
+   }
+}
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/system/setFieldsDict

@@ -0,0 +1,48 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      setFieldsDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defaultFieldValues
+(
+    volScalarFieldValue zoneID 123
+);
+
+regions
+(
+    // Set cell values
+    // (does zerogradient on boundaries)
+    cellToCell
+    {
+        set c0;
+
+        fieldValues
+        (
+            volScalarFieldValue zoneID 0
+        );
+    }
+
+    cellToCell
+    {
+        set c1;
+
+        fieldValues
+        (
+            volScalarFieldValue zoneID 1
+        );
+    }
+
+);
+
+// ************************************************************************* //

tutorials/heatTransfer/overBuoyantPimpleFoam/system/topoSetDict

@@ -0,0 +1,69 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  v1812                                 |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      topoSetDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+actions
+(
+    {
+        name    c0;
+        type    cellSet;
+        action  new;
+        source  regionToCell;
+        insidePoints ((0.0001 0.0001 0.0001));
+    }
+
+    {
+        name    c1;
+        type    cellSet;
+        action  new;
+        source  cellToCell;
+        set     c0;
+    }
+
+    {
+        name    c1;
+        type    cellSet;
+        action  invert;
+    }
+
+    // Select box to remove from region 1 and 2
+
+    {
+        name    box;
+        type    cellSet;
+        action  new;
+        source  cellToCell;
+        set     c1;
+    }
+
+    {
+        name    box;
+        type    cellSet;
+        action  subset;
+        source  boxToCell;
+        boxes
+        (
+            (0.0485 0.01 -100)(0.0565 0.035 100)
+        );
+    }
+
+    {
+        name    box;
+        type    cellSet;
+        action  invert;
+    }
+);
+
+// ************************************************************************* //