settlingFoam -> driftFluxFoam

Changed Alpha -> alpha Solve alpha using MULES Added fvOptions
2025-11-28 03:28:01 +00:00 · 2014-02-11 17:58:20 +00:00
parent dda92bbe36
commit ad9ccbc44d
64 changed files with 1565 additions and 1042 deletions
--- a/applications/solvers/multiphase/driftFluxFoam/Make/files
+++ b/applications/solvers/multiphase/driftFluxFoam/Make/files
@ -0,0 +1,3 @@
+driftFluxFoam.C
+
+EXE = $(FOAM_APPBIN)/driftFluxFoam
--- a/applications/solvers/multiphase/driftFluxFoam/Make/options
+++ b/applications/solvers/multiphase/driftFluxFoam/Make/options
@ -0,0 +1,11 @@
+EXE_INC = \
+    -I$(LIB_SRC)/finiteVolume/lnInclude \
+    -I$(LIB_SRC)/meshTools/lnInclude \
+    -I$(LIB_SRC)/sampling/lnInclude \
+    -I$(LIB_SRC)/fvOptions/lnInclude
+
+EXE_LIBS = \
+    -lfiniteVolume \
+    -lmeshTools \
+    -lsampling \
+    -lfvOptions
--- a/applications/solvers/multiphase/driftFluxFoam/UEqn.H
+++ b/applications/solvers/multiphase/driftFluxFoam/UEqn.H
@ -3,18 +3,22 @@
    fvVectorMatrix UEqn
    (
        fvm::ddt(rho, U)
-      + fvm::div(phi, U)
+      + fvm::div(rhoPhi, U)
      + fvc::div
        (
-            (Alpha/(scalar(1.001) - Alpha))*(sqr(rhoc)/rho)*Vdj*Vdj,
+            (alpha/(scalar(1.001) - alpha))*((rhoc*rhod)/rho)*Vdj*Vdj,
            "div(phiVdj,Vdj)"
        )
-      - fvm::laplacian(muEff, U, "laplacian(muEff,U)")
-      - (fvc::grad(U) & fvc::grad(muEff))
+      - fvm::laplacian(muEff, U)
+      - fvc::div(muEff*dev2(T(fvc::grad(U))))
+     ==
+        fvOptions(rho, U)
    );

    UEqn.relax();

+    fvOptions.constrain(UEqn);
+
    if (pimple.momentumPredictor())
    {
        solve
@ -29,4 +33,6 @@
                )*mesh.magSf()
            )
        );
+
+        fvOptions.correct(U);
    }
--- a/applications/solvers/multiphase/driftFluxFoam/alphaControls.H
+++ b/applications/solvers/multiphase/driftFluxFoam/alphaControls.H
@ -0,0 +1,4 @@
+const dictionary& alphaControls = mesh.solverDict(alpha.name());
+
+label nAlphaCorr(readLabel(alphaControls.lookup("nAlphaCorr")));
+label nAlphaSubCycles(readLabel(alphaControls.lookup("nAlphaSubCycles")));
--- a/applications/solvers/multiphase/driftFluxFoam/alphaEqn.H
+++ b/applications/solvers/multiphase/driftFluxFoam/alphaEqn.H
@ -0,0 +1,31 @@
+{
+    word alphaScheme("div(phi,alpha)");
+    word alpharScheme("div(phirb,alpha)");
+
+    for (int aCorr=0; aCorr<nAlphaCorr; aCorr++)
+    {
+        phiAlpha =
+        (
+            fvc::flux
+            (
+                phi,
+                alpha,
+                alphaScheme
+            )
+          + fvc::flux
+            (
+                phir,
+                alpha,
+                alpharScheme
+            )
+        );
+
+        MULES::explicitSolve(alpha, phi, phiAlpha, 1, 0);
+    }
+
+    Info<< "Phase-1 volume fraction = "
+        << alpha.weightedAverage(mesh.Vsc()).value()
+        << "  Min(alpha) = " << min(alpha).value()
+        << "  Max(alpha) = " << max(alpha).value()
+        << endl;
+}
--- a/applications/solvers/multiphase/driftFluxFoam/alphaEqnSubCycle.H
+++ b/applications/solvers/multiphase/driftFluxFoam/alphaEqnSubCycle.H
@ -0,0 +1,73 @@
+{
+    surfaceScalarField phiAlpha
+    (
+        IOobject
+        (
+            "phiAlpha",
+            runTime.timeName(),
+            mesh
+        ),
+        mesh,
+        dimensionedScalar("0", phi.dimensions(), 0)
+    );
+
+    surfaceScalarField phir
+    (
+        rhoc*(mesh.Sf() & fvc::interpolate(Vdj/rho))
+    );
+
+    if (nAlphaSubCycles > 1)
+    {
+        dimensionedScalar totalDeltaT = runTime.deltaT();
+        surfaceScalarField phiAlphaSum
+        (
+            IOobject
+            (
+                "phiAlphaSum",
+                runTime.timeName(),
+                mesh
+            ),
+            mesh,
+            dimensionedScalar("0", phi.dimensions(), 0)
+        );
+
+        for
+        (
+            subCycle<volScalarField> alphaSubCycle(alpha, nAlphaSubCycles);
+            !(++alphaSubCycle).end();
+        )
+        {
+            #include "alphaEqn.H"
+            phiAlphaSum += (runTime.deltaT()/totalDeltaT)*phiAlpha;
+        }
+
+        phiAlpha = phiAlphaSum;
+    }
+    else
+    {
+        #include "alphaEqn.H"
+    }
+
+    // Apply the diffusion term separately to allow implicit solution
+    // and boundedness of the explicit advection
+    {
+        fvScalarMatrix alphaEqn
+        (
+            fvm::ddt(alpha) - fvc::ddt(alpha)
+          - fvm::laplacian(mut/rho, alpha)
+        );
+
+        alphaEqn.solve();
+
+        phiAlpha += alphaEqn.flux();
+    }
+
+    Info<< "Phase-1 volume fraction = "
+        << alpha.weightedAverage(mesh.Vsc()).value()
+        << "  Min(alpha) = " << min(alpha).value()
+        << "  Max(alpha) = " << max(alpha).value()
+        << endl;
+
+    rhoPhi = phiAlpha*(rhod - rhoc) + phi*rhoc;
+    rho == alpha*rhod + (scalar(1) - alpha)*rhoc;
+}
--- a/applications/solvers/multiphase/driftFluxFoam/calcVdj.H
+++ b/applications/solvers/multiphase/driftFluxFoam/calcVdj.H
@ -8,7 +8,7 @@ if (VdjModel == "general")
 }
 else if (VdjModel == "simple")
 {
-    Vdj = V0*pow(10.0, -a*alpha);
+    Vdj = V0*pow(10.0, -a*max(alpha, scalar(0)));
 }
 else
 {
--- a/applications/solvers/multiphase/driftFluxFoam/correctViscosity.H
+++ b/applications/solvers/multiphase/driftFluxFoam/correctViscosity.H
--- a/applications/solvers/multiphase/driftFluxFoam/createFields.H
+++ b/applications/solvers/multiphase/driftFluxFoam/createFields.H
@ -12,12 +12,12 @@
        mesh
    );

-    Info<< "Reading field Alpha\n" << endl;
-    volScalarField Alpha
+    Info<< "Reading field alpha\n" << endl;
+    volScalarField alpha
    (
        IOobject
        (
-            "Alpha",
+            "alpha",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ,
@ -40,6 +40,8 @@
        mesh
    );

+    #include "createPhi.H"
+

    Info<< "Reading transportProperties\n" << endl;

@ -100,25 +102,24 @@
            IOobject::NO_READ,
            IOobject::NO_WRITE
        ),
-        rhoc/(scalar(1) + (rhoc/rhod - 1.0)*Alpha)
+        alpha*rhod + (scalar(1) - alpha)*rhoc
    );
+    rho.oldTime();

-    volScalarField alpha
+    // Mass flux
+    surfaceScalarField rhoPhi
    (
        IOobject
        (
-            "alpha",
+            "rhoPhi",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
-            IOobject::AUTO_WRITE
+            IOobject::NO_WRITE
        ),
-        rho*Alpha/rhod
+        fvc::interpolate(rho)*phi
    );

-    #include "compressibleCreatePhi.H"
-
-
    Info<< "Calculating field mul\n" << endl;
    volScalarField mul
    (
@ -135,7 +136,7 @@
        (
            plasticViscosityCoeff,
            plasticViscosityExponent,
-            Alpha
+            alpha
        )
    );

--- a/applications/solvers/multiphase/driftFluxFoam/driftFluxFoam.C
+++ b/applications/solvers/multiphase/driftFluxFoam/driftFluxFoam.C
@ -2,7 +2,7 @@
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2014 OpenFOAM Foundation
     \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@ -22,15 +22,20 @@ License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

 Application
-    settlingFoam
+    driftFluxFoam

 Description
-    Solver for 2 incompressible fluids for simulating the settling of the
-    dispersed phase.
+    Solver for 2 incompressible fluids using the mixture approach with the
+    drift-flux approximation for relative motion of the phases.
+
+    Used for simulating the settling of the dispersed phase and other similar
+    separation problems.

 \*---------------------------------------------------------------------------*/

 #include "fvCFD.H"
+#include "CMULES.H"
+#include "subCycle.H"
 #include "nearWallDist.H"
 #include "wallFvPatch.H"
 #include "bound.H"
@ -38,6 +43,7 @@ Description
 #include "plasticViscosity.H"
 #include "yieldStress.H"
 #include "pimpleControl.H"
+#include "fvIOoptionList.H"
 #include "fixedFluxPressureFvPatchScalarField.H"

 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@ -50,6 +56,7 @@ int main(int argc, char *argv[])
    #include "createMesh.H"
    #include "readGravitationalAcceleration.H"
    #include "createFields.H"
+    #include "createFvOptions.H"
    #include "initContinuityErrs.H"

    pimpleControl pimple(mesh);
@ -61,26 +68,24 @@ int main(int argc, char *argv[])
    while (runTime.run())
    {
        #include "readTimeControls.H"
-        #include "compressibleCourantNo.H"
+        #include "CourantNo.H"
        #include "setDeltaT.H"

        runTime++;

        Info<< "Time = " << runTime.timeName() << nl << endl;

-        #include "rhoEqn.H"
-
        // --- Pressure-velocity PIMPLE corrector loop
        while (pimple.loop())
        {
+            #include "alphaControls.H"
+
            #include "calcVdj.H"
+            #include "alphaEqnSubCycle.H"
+            #include "correctViscosity.H"

            #include "UEqn.H"

-            #include "alphaEqn.H"
-
-            #include "correctViscosity.H"
-
            // --- Pressure corrector loop
            while (pimple.correct())
            {
--- a/applications/solvers/multiphase/driftFluxFoam/kEpsilon.H
+++ b/applications/solvers/multiphase/driftFluxFoam/kEpsilon.H
@ -10,10 +10,10 @@ if (turbulence)
    dimensionedScalar epsilon0("epsilon0", epsilon.dimensions(), 0);
    dimensionedScalar epsilonMin("epsilonMin", epsilon.dimensions(), SMALL);

-    volScalarField divU(fvc::div(phi/fvc::interpolate(rho)));
+    volScalarField divU(fvc::div(rhoPhi/fvc::interpolate(rho)));

    tmp<volTensorField> tgradU = fvc::grad(U);
-    volScalarField G(2*mut*(tgradU() && dev(symm(tgradU()))));
+    volScalarField G(mut*(tgradU() && dev(twoSymm(tgradU()))));
    tgradU.clear();

    volScalarField Gcoef
@ -27,7 +27,7 @@ if (turbulence)
    fvScalarMatrix epsEqn
    (
        fvm::ddt(rho, epsilon)
-      + fvm::div(phi, epsilon)
+      + fvm::div(rhoPhi, epsilon)
      - fvm::laplacian
        (
            mut/sigmaEps + muc, epsilon,
@ -51,7 +51,7 @@ if (turbulence)
    fvScalarMatrix kEqn
    (
        fvm::ddt(rho, k)
-      + fvm::div(phi, k)
+      + fvm::div(rhoPhi, k)
      - fvm::laplacian
        (
            mut/sigmak + muc, k,
--- a/applications/solvers/multiphase/driftFluxFoam/pEqn.H
+++ b/applications/solvers/multiphase/driftFluxFoam/pEqn.H
@ -1,6 +1,6 @@
 {
    volScalarField rAU("rAU", 1.0/UEqn.A());
-    surfaceScalarField rhorAUf("rhorAUf", fvc::interpolate(rho*rAU));
+    surfaceScalarField rAUf("rAUf", fvc::interpolate(rAU));

    volVectorField HbyA("HbyA", U);
    HbyA = rAU*UEqn.H();
@ -8,15 +8,17 @@
    surfaceScalarField phiHbyA
    (
        "phiHbyA",
-        (
-           (fvc::interpolate(rho*HbyA) & mesh.Sf())
-         + rhorAUf*fvc::ddtCorr(rho, U, phi)
-        )
+        (fvc::interpolate(HbyA) & mesh.Sf())
+      + fvc::interpolate(rho*rAU)*fvc::ddtCorr(U, phi)
    );
+    adjustPhi(phiHbyA, U, p_rgh);
+    fvOptions.makeRelative(phiHbyA);

    surfaceScalarField phig
    (
-        - ghf*fvc::snGrad(rho)*rhorAUf*mesh.magSf()
+        (
+          - ghf*fvc::snGrad(rho)
+        )*rAUf*mesh.magSf()
    );

    phiHbyA += phig;
@ -27,16 +29,15 @@
        p_rgh.boundaryField(),
        (
            phiHbyA.boundaryField()
-          - (mesh.Sf().boundaryField() & U.boundaryField())
-           *rho.boundaryField()
-        )/(mesh.magSf().boundaryField()*rhorAUf.boundaryField())
+          - fvOptions.relative(mesh.Sf().boundaryField() & U.boundaryField())
+        )/(mesh.magSf().boundaryField()*rAUf.boundaryField())
    );

    while (pimple.correctNonOrthogonal())
    {
        fvScalarMatrix p_rghEqn
        (
-            fvm::laplacian(rhorAUf, p_rgh) == fvc::ddt(rho) + fvc::div(phiHbyA)
+            fvm::laplacian(rAUf, p_rgh) == fvc::div(phiHbyA)
        );

        p_rghEqn.setReference(pRefCell, getRefCellValue(p_rgh, pRefCell));
@ -47,11 +48,16 @@
        {
            phi = phiHbyA - p_rghEqn.flux();

-            U = HbyA + rAU*fvc::reconstruct((phig - p_rghEqn.flux())/rhorAUf);
+            p_rgh.relax();
+
+            U = HbyA + rAU*fvc::reconstruct((phig - p_rghEqn.flux())/rAUf);
            U.correctBoundaryConditions();
+            fvOptions.correct(U);
        }
    }

+    #include "continuityErrs.H"
+
    p == p_rgh + rho*gh;

    if (p_rgh.needReference())
@ -64,7 +70,4 @@
        );
        p_rgh = p - rho*gh;
    }
-
-    #include "rhoEqn.H"
-    #include "compressibleContinuityErrs.H"
 }
--- a/applications/solvers/multiphase/driftFluxFoam/plasticViscosity.H
+++ b/applications/solvers/multiphase/driftFluxFoam/plasticViscosity.H
@ -2,14 +2,18 @@ volScalarField plasticViscosity
 (
    const dimensionedScalar& plasticViscosityCoeff,
    const dimensionedScalar& plasticViscosityExponent,
-    const volScalarField& alpha
+    const volScalarField& Alpha
 )
 {
    tmp<volScalarField> tfld
    (
         plasticViscosityCoeff*
         (
-             pow(10.0, plasticViscosityExponent*alpha + SMALL) - scalar(1)
+             pow
+             (
+                 10.0,
+                 plasticViscosityExponent*Alpha + SMALL
+             ) - scalar(1)
         )
    );

--- a/applications/solvers/multiphase/driftFluxFoam/wallDissipation.H
+++ b/applications/solvers/multiphase/driftFluxFoam/wallDissipation.H
--- a/applications/solvers/multiphase/driftFluxFoam/wallFunctions.H
+++ b/applications/solvers/multiphase/driftFluxFoam/wallFunctions.H
--- a/applications/solvers/multiphase/driftFluxFoam/wallViscosity.H
+++ b/applications/solvers/multiphase/driftFluxFoam/wallViscosity.H
--- a/applications/solvers/multiphase/driftFluxFoam/yieldStress.H
+++ b/applications/solvers/multiphase/driftFluxFoam/yieldStress.H
@ -10,8 +10,16 @@ volScalarField yieldStress
    (
        yieldStressCoeff*
        (
-            pow(10.0, yieldStressExponent*(alpha + yieldStressOffset))
-          - pow(10.0, yieldStressExponent*yieldStressOffset)
+            pow
+            (
+                10.0,
+                yieldStressExponent*(max(alpha, scalar(0)) + yieldStressOffset)
+            )
+          - pow
+            (
+                10.0,
+                yieldStressExponent*yieldStressOffset
+            )
        )
    );

--- a/applications/solvers/multiphase/settlingFoam/Make/files
+++ b/applications/solvers/multiphase/settlingFoam/Make/files
@ -1,3 +0,0 @@
-settlingFoam.C
-
-EXE = $(FOAM_APPBIN)/settlingFoam
--- a/applications/solvers/multiphase/settlingFoam/Make/options
+++ b/applications/solvers/multiphase/settlingFoam/Make/options
@ -1,5 +0,0 @@
-EXE_INC = \
-    -I$(LIB_SRC)/finiteVolume/lnInclude
-
-EXE_LIBS = \
-    -lfiniteVolume
--- a/applications/solvers/multiphase/settlingFoam/alphaEqn.H
+++ b/applications/solvers/multiphase/settlingFoam/alphaEqn.H
@ -1,34 +0,0 @@
-{
-    surfaceScalarField phiAlpha
-    (
-        IOobject
-        (
-            "phiAlpha",
-            runTime.timeName(),
-            mesh
-        ),
-        phi + rhoc*(mesh.Sf() & fvc::interpolate(Vdj))
-    );
-
-    fvScalarMatrix AlphaEqn
-    (
-          fvm::ddt(rho, Alpha)
-        + fvm::div(phiAlpha, Alpha)
-        - fvm::laplacian(mut, Alpha)
-    );
-
-    AlphaEqn.relax();
-    AlphaEqn.solve();
-
-    Info<< "Solid phase fraction = "
-        << Alpha.weightedAverage(mesh.V()).value()
-        << "  Min(Alpha) = " << min(Alpha).value()
-        << "  Max(Alpha) = " << max(Alpha).value()
-        << endl;
-
-    Alpha.min(1.0);
-    Alpha.max(0.0);
-
-    rho == rhoc/(scalar(1) + (rhoc/rhod - 1.0)*Alpha);
-    alpha == rho*Alpha/rhod;
-}
--- a/applications/solvers/multiphase/settlingFoam/compressibleContinuityErrs.H
+++ b/applications/solvers/multiphase/settlingFoam/compressibleContinuityErrs.H
@ -1,21 +0,0 @@
-    scalar sumLocalContErr =
-        runTime.deltaTValue()*
-        mag
-        (
-            fvc::ddt(rho)
-          + fvc::div(phi)
-        )().weightedAverage(rho*mesh.V()).value();
-
-    scalar globalContErr =
-          runTime.deltaTValue()*
-          (
-              fvc::ddt(rho)
-            + fvc::div(phi)
-          )().weightedAverage(rho*mesh.V()).value();
-
-    cumulativeContErr += globalContErr;
-
-    Info<< "time step continuity errors : sum local = " << sumLocalContErr
-        << ", global = " << globalContErr
-        << ", cumulative = " << cumulativeContErr
-        << endl;
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/0/U
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/0/U
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/0/alpha
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/0/alpha
@ -10,7 +10,7 @@ FoamFile
    version     2.0;
    format      ascii;
    class       volScalarField;
-    object      Alpha;
+    object      alpha;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/0/epsilon
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/0/epsilon
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/0/k
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/0/k
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/0/p_rgh
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/0/p_rgh
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/RASProperties
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/RASProperties
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/g
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/g
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/polyMesh/blockMeshDict
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/polyMesh/blockMeshDict
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/polyMesh/boundary
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/polyMesh/boundary
@ -0,0 +1,61 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      binary;
+    class       polyBoundaryMesh;
+    location    "constant/polyMesh";
+    object      boundary;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+6
+(
+    inlet
+    {
+        type            patch;
+        nFaces          40;
+        startFace       15760;
+    }
+    outlet
+    {
+        type            patch;
+        nFaces          4;
+        startFace       15800;
+    }
+    bottomWall
+    {
+        type            wall;
+        inGroups        1(wall);
+        nFaces          200;
+        startFace       15804;
+    }
+    endWall
+    {
+        type            wall;
+        inGroups        1(wall);
+        nFaces          36;
+        startFace       16004;
+    }
+    top
+    {
+        type            patch;
+        nFaces          200;
+        startFace       16040;
+    }
+    frontAndBack
+    {
+        type            empty;
+        inGroups        1(empty);
+        nFaces          16000;
+        startFace       16240;
+    }
+)
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/transportProperties
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/constant/transportProperties
--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/system/controlDict
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/system/controlDict
@ -15,9 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

-application     settlingFoam;
+application     driftFluxFoam;

-startFrom       latestTime;
+startFrom       startTime;

 startTime       0;

@ -29,11 +29,11 @@ deltaT          0.1;

 writeControl    adjustableRunTime;

-writeInterval   20;
+writeInterval   50;

 purgeWrite      0;

-writeFormat     ascii;
+writeFormat     binary;

 writePrecision  6;

@ -47,7 +47,7 @@ runTimeModifiable yes;

 adjustTimeStep  on;

-maxCo           0.4;
+maxCo           1;

 maxDeltaT       1;

--- a/tutorials/multiphase/driftFluxFoam/ras/dahl/system/fvSchemes
+++ b/tutorials/multiphase/driftFluxFoam/ras/dahl/system/fvSchemes
@ -27,13 +27,16 @@ gradSchemes

 divSchemes
 {
-    default         none;
+    default             none;

-    div(phi,U)      Gauss linearUpwind grad(U);
-    div(phi,k)      Gauss upwind;
-    div(phi,epsilon) Gauss upwind;
-    div(phiAlpha,Alpha) Gauss limitedLinear01 1;
-    div(phiVdj,Vdj) Gauss linear;
+    div(rhoPhi,U)       Gauss linearUpwind grad(U);
+    div(phiVdj,Vdj)     Gauss linear;
+    div(phi,alpha)      Gauss vanLeer;
+    div(phirb,alpha)    Gauss vanLeer;
+    div(rhoPhi,k)       Gauss limitedLinear 1;
+    div(rhoPhi,epsilon) Gauss limitedLinear 1;
+
+    div((muEff*dev2(T(grad(U))))) Gauss linear;
 }

 laplacianSchemes
@ -54,7 +57,8 @@ snGradSchemes
 fluxRequired
 {
    default         no;
-    p_rgh             ;
+    p_rgh;
+    alpha;
 }


--- a/tutorials/multiphase/settlingFoam/ras/tank3D/system/fvSolution
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/system/fvSolution
@ -17,48 +17,48 @@ FoamFile

 solvers
 {
+    "alpha.*"
+    {
+        nAlphaCorr      1;
+        nAlphaSubCycles 4;
+
+        solver          smoothSolver;
+        smoother        symGaussSeidel;
+        tolerance       1e-6;
+        relTol          0;
+        minIter         1;
+    }
+
    p_rgh
    {
-        solver          PCG;
-        preconditioner  DIC;
-        tolerance       1e-07;
+        solver          GAMG;
+        tolerance       1e-7;
        relTol          0.01;
+        smoother        GaussSeidel;
+        cacheAgglomeration true;
+        nCellsInCoarsestLevel 20;
+        agglomerator    faceAreaPair;
+        mergeLevels     1;
    }

    p_rghFinal
    {
        $p_rgh;
-        tolerance       1e-07;
        relTol          0;
    }

-    "(U|Alpha|k|epsilon)"
+    "(U|k|epsilon)"
    {
        solver          smoothSolver;
        smoother        symGaussSeidel;
-        tolerance       1e-07;
+        tolerance       1e-7;
        relTol          0.1;
+        minIter         1;
    }

-    "(U|Alpha|k|epsilon)Final"
+    "(U|k|epsilon)Final"
    {
        $k;
-        tolerance       1e-07;
-        relTol          0;
-    }
-
-    rho
-    {
-        solver          PCG;
-        preconditioner  DIC;
-        tolerance       1e-07;
-        relTol          0.1;
-    }
-
-    rhoFinal
-    {
-        $rho;
-        tolerance       1e-07;
        relTol          0;
    }
 }
@ -76,7 +76,6 @@ relaxationFactors
    }
    equations
    {
-        "Alpha.*"       1;
        "U.*"           1;
        "k.*"           1;
        "epsilon.*"     1;
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/U
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/U
@ -0,0 +1,45 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     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
+{
+    rotor
+    {
+        type            fixedValue;
+        value           uniform (0 0 0);
+    }
+    stator
+    {
+        type            fixedValue;
+        value           uniform (0 0 0);
+    }
+    front
+    {
+        type            empty;
+    }
+    back
+    {
+        type            empty;
+    }
+}
+
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/alpha
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/alpha
@ -0,0 +1,44 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      alpha;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 0 0 0 0];
+
+internalField   uniform 0.001;
+
+boundaryField
+{
+    rotor
+    {
+        type            zeroGradient;
+    }
+
+    stator
+    {
+        type            zeroGradient;
+    }
+
+    front
+    {
+        type            empty;
+    }
+
+    back
+    {
+        type            empty;
+    }
+}
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/epsilon
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/epsilon
@ -0,0 +1,44 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      epsilon;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 2 -3 0 0 0 0];
+
+internalField   uniform 7e-3;
+
+boundaryField
+{
+    rotor
+    {
+        type            zeroGradient;
+    }
+
+    stator
+    {
+        type            zeroGradient;
+    }
+
+    front
+    {
+        type            empty;
+    }
+
+    back
+    {
+        type            empty;
+    }
+}
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/k
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/k
@ -0,0 +1,44 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      k;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 2 -2 0 0 0 0];
+
+internalField   uniform 0.01;
+
+boundaryField
+{
+    rotor
+    {
+        type            zeroGradient;
+    }
+
+    stator
+    {
+        type            zeroGradient;
+    }
+
+    front
+    {
+        type            empty;
+    }
+
+    back
+    {
+        type            empty;
+    }
+}
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/p_rgh
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/0/p_rgh
@ -0,0 +1,44 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     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
+{
+    rotor
+    {
+        type            zeroGradient;
+    }
+
+    stator
+    {
+        type            zeroGradient;
+    }
+
+    front
+    {
+        type            empty;
+    }
+
+    back
+    {
+        type            empty;
+    }
+}
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/Allrun
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/Allrun
@ -6,6 +6,7 @@ cd ${0%/*} || exit 1    # run from this directory

 application=`getApplication`

+runApplication ./makeMesh
 runApplication $application

 # ----------------------------------------------------------------- end-of-file
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/RASProperties
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/RASProperties
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/g
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/g
@ -16,7 +16,6 @@ FoamFile
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

 dimensions      [0 1 -2 0 0 0 0];
-value           ( 0 -9.81 0 );
-
+value           (0 0 0);

 // ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/polyMesh/blockMeshDict.m4
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/polyMesh/blockMeshDict.m4
@ -0,0 +1,818 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    `format'      ascii;
+    class       dictionary;
+    object      blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// General macros to create 2D/extruded-2D meshes
+
+changecom(//)changequote([,])
+define(calc, [esyscmd(perl -e 'print ($1)')])
+define(VCOUNT, 0)
+define(vlabel, [[// ]Vertex $1 = VCOUNT define($1, VCOUNT)define([VCOUNT], incr(VCOUNT))])
+define(pi, 3.14159265)
+
+define(hex2D, hex ($1b $2b $3b $4b $1t $2t $3t $4t))
+define(quad2D, ($1b $2b $2t $1t))
+define(frontQuad, ($1t $2t $3t $4t))
+define(backQuad, ($1b $4b $3b $2b))
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+convertToMeters 0.1;
+
+// Hub radius
+define(r, 0.2)
+
+// Impeller-tip radius
+define(rb, 0.5)
+
+// Baffle-tip radius
+define(Rb, 0.7)
+
+// Tank radius
+define(R, 1)
+
+// MRF region radius
+define(ri, calc(0.5*(rb + Rb)))
+
+// Thickness of 2D slab
+define(z, 0.1)
+
+// Base z
+define(Zb, 0)
+
+// Top z
+define(Zt, calc(Zb + z))
+
+// Number of cells radially between hub and impeller tip
+define(Nr, 12)
+
+// Number of cells radially in each of the two regions between
+// impeller and baffle tips
+define(Ni, 4)
+
+// Number of cells radially between baffle tip and tank
+define(NR, 12)
+
+// Number of cells azimuthally in each of the 8 blocks
+define(Na, 12)
+
+// Number of cells in the thickness of the slab
+define(Nz, 1)
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+define(vert, (x$1$2 y$1$2 $3))
+define(evert, (ex$1$2 ey$1$2 $3))
+
+define(a0, 0)
+define(a1, -45)
+define(a2, -90)
+define(a3, -135)
+define(a4, 180)
+define(a5, 135)
+define(a6, 90)
+define(a7, 45)
+
+define(ea0, -22.5)
+define(ea1, -67.5)
+define(ea2, -112.5)
+define(ea3, -157.5)
+define(ea4, 157.5)
+define(ea5, 112.5)
+define(ea6, 67.5)
+define(ea7, 22.5)
+
+define(ca0, calc(cos((pi/180)*a0)))
+define(ca1, calc(cos((pi/180)*a1)))
+define(ca2, calc(cos((pi/180)*a2)))
+define(ca3, calc(cos((pi/180)*a3)))
+define(ca4, calc(cos((pi/180)*a4)))
+define(ca5, calc(cos((pi/180)*a5)))
+define(ca6, calc(cos((pi/180)*a6)))
+define(ca7, calc(cos((pi/180)*a7)))
+
+define(sa0, calc(sin((pi/180)*a0)))
+define(sa1, calc(sin((pi/180)*a1)))
+define(sa2, calc(sin((pi/180)*a2)))
+define(sa3, calc(sin((pi/180)*a3)))
+define(sa4, calc(sin((pi/180)*a4)))
+define(sa5, calc(sin((pi/180)*a5)))
+define(sa6, calc(sin((pi/180)*a6)))
+define(sa7, calc(sin((pi/180)*a7)))
+
+define(cea0, calc(cos((pi/180)*ea0)))
+define(cea1, calc(cos((pi/180)*ea1)))
+define(cea2, calc(cos((pi/180)*ea2)))
+define(cea3, calc(cos((pi/180)*ea3)))
+define(cea4, calc(cos((pi/180)*ea4)))
+define(cea5, calc(cos((pi/180)*ea5)))
+define(cea6, calc(cos((pi/180)*ea6)))
+define(cea7, calc(cos((pi/180)*ea7)))
+
+define(sea0, calc(sin((pi/180)*ea0)))
+define(sea1, calc(sin((pi/180)*ea1)))
+define(sea2, calc(sin((pi/180)*ea2)))
+define(sea3, calc(sin((pi/180)*ea3)))
+define(sea4, calc(sin((pi/180)*ea4)))
+define(sea5, calc(sin((pi/180)*ea5)))
+define(sea6, calc(sin((pi/180)*ea6)))
+define(sea7, calc(sin((pi/180)*ea7)))
+
+define(x00, calc(r*ca0))
+define(x01, calc(r*ca1))
+define(x02, calc(r*ca2))
+define(x03, calc(r*ca3))
+define(x04, calc(r*ca4))
+define(x05, calc(r*ca5))
+define(x06, calc(r*ca6))
+define(x07, calc(r*ca7))
+
+define(x10, calc(rb*ca0))
+define(x11, calc(rb*ca1))
+define(x12, calc(rb*ca2))
+define(x13, calc(rb*ca3))
+define(x14, calc(rb*ca4))
+define(x15, calc(rb*ca5))
+define(x16, calc(rb*ca6))
+define(x17, calc(rb*ca7))
+
+define(x20, calc(ri*ca0))
+define(x21, calc(ri*ca1))
+define(x22, calc(ri*ca2))
+define(x23, calc(ri*ca3))
+define(x24, calc(ri*ca4))
+define(x25, calc(ri*ca5))
+define(x26, calc(ri*ca6))
+define(x27, calc(ri*ca7))
+
+define(x30, calc(Rb*ca0))
+define(x31, calc(Rb*ca1))
+define(x32, calc(Rb*ca2))
+define(x33, calc(Rb*ca3))
+define(x34, calc(Rb*ca4))
+define(x35, calc(Rb*ca5))
+define(x36, calc(Rb*ca6))
+define(x37, calc(Rb*ca7))
+
+define(x40, calc(R*ca0))
+define(x41, calc(R*ca1))
+define(x42, calc(R*ca2))
+define(x43, calc(R*ca3))
+define(x44, calc(R*ca4))
+define(x45, calc(R*ca5))
+define(x46, calc(R*ca6))
+define(x47, calc(R*ca7))
+
+define(y00, calc(r*sa0))
+define(y01, calc(r*sa1))
+define(y02, calc(r*sa2))
+define(y03, calc(r*sa3))
+define(y04, calc(r*sa4))
+define(y05, calc(r*sa5))
+define(y06, calc(r*sa6))
+define(y07, calc(r*sa7))
+
+define(y10, calc(rb*sa0))
+define(y11, calc(rb*sa1))
+define(y12, calc(rb*sa2))
+define(y13, calc(rb*sa3))
+define(y14, calc(rb*sa4))
+define(y15, calc(rb*sa5))
+define(y16, calc(rb*sa6))
+define(y17, calc(rb*sa7))
+
+define(y20, calc(ri*sa0))
+define(y21, calc(ri*sa1))
+define(y22, calc(ri*sa2))
+define(y23, calc(ri*sa3))
+define(y24, calc(ri*sa4))
+define(y25, calc(ri*sa5))
+define(y26, calc(ri*sa6))
+define(y27, calc(ri*sa7))
+
+define(y30, calc(Rb*sa0))
+define(y31, calc(Rb*sa1))
+define(y32, calc(Rb*sa2))
+define(y33, calc(Rb*sa3))
+define(y34, calc(Rb*sa4))
+define(y35, calc(Rb*sa5))
+define(y36, calc(Rb*sa6))
+define(y37, calc(Rb*sa7))
+
+define(y40, calc(R*sa0))
+define(y41, calc(R*sa1))
+define(y42, calc(R*sa2))
+define(y43, calc(R*sa3))
+define(y44, calc(R*sa4))
+define(y45, calc(R*sa5))
+define(y46, calc(R*sa6))
+define(y47, calc(R*sa7))
+
+define(ex00, calc(r*cea0))
+define(ex01, calc(r*cea1))
+define(ex02, calc(r*cea2))
+define(ex03, calc(r*cea3))
+define(ex04, calc(r*cea4))
+define(ex05, calc(r*cea5))
+define(ex06, calc(r*cea6))
+define(ex07, calc(r*cea7))
+
+define(ex10, calc(rb*cea0))
+define(ex11, calc(rb*cea1))
+define(ex12, calc(rb*cea2))
+define(ex13, calc(rb*cea3))
+define(ex14, calc(rb*cea4))
+define(ex15, calc(rb*cea5))
+define(ex16, calc(rb*cea6))
+define(ex17, calc(rb*cea7))
+
+define(ex20, calc(ri*cea0))
+define(ex21, calc(ri*cea1))
+define(ex22, calc(ri*cea2))
+define(ex23, calc(ri*cea3))
+define(ex24, calc(ri*cea4))
+define(ex25, calc(ri*cea5))
+define(ex26, calc(ri*cea6))
+define(ex27, calc(ri*cea7))
+
+define(ex30, calc(Rb*cea0))
+define(ex31, calc(Rb*cea1))
+define(ex32, calc(Rb*cea2))
+define(ex33, calc(Rb*cea3))
+define(ex34, calc(Rb*cea4))
+define(ex35, calc(Rb*cea5))
+define(ex36, calc(Rb*cea6))
+define(ex37, calc(Rb*cea7))
+
+define(ex40, calc(R*cea0))
+define(ex41, calc(R*cea1))
+define(ex42, calc(R*cea2))
+define(ex43, calc(R*cea3))
+define(ex44, calc(R*cea4))
+define(ex45, calc(R*cea5))
+define(ex46, calc(R*cea6))
+define(ex47, calc(R*cea7))
+
+define(ey00, calc(r*sea0))
+define(ey01, calc(r*sea1))
+define(ey02, calc(r*sea2))
+define(ey03, calc(r*sea3))
+define(ey04, calc(r*sea4))
+define(ey05, calc(r*sea5))
+define(ey06, calc(r*sea6))
+define(ey07, calc(r*sea7))
+
+define(ey10, calc(rb*sea0))
+define(ey11, calc(rb*sea1))
+define(ey12, calc(rb*sea2))
+define(ey13, calc(rb*sea3))
+define(ey14, calc(rb*sea4))
+define(ey15, calc(rb*sea5))
+define(ey16, calc(rb*sea6))
+define(ey17, calc(rb*sea7))
+
+define(ey20, calc(ri*sea0))
+define(ey21, calc(ri*sea1))
+define(ey22, calc(ri*sea2))
+define(ey23, calc(ri*sea3))
+define(ey24, calc(ri*sea4))
+define(ey25, calc(ri*sea5))
+define(ey26, calc(ri*sea6))
+define(ey27, calc(ri*sea7))
+
+define(ey30, calc(Rb*sea0))
+define(ey31, calc(Rb*sea1))
+define(ey32, calc(Rb*sea2))
+define(ey33, calc(Rb*sea3))
+define(ey34, calc(Rb*sea4))
+define(ey35, calc(Rb*sea5))
+define(ey36, calc(Rb*sea6))
+define(ey37, calc(Rb*sea7))
+
+define(ey40, calc(R*sea0))
+define(ey41, calc(R*sea1))
+define(ey42, calc(R*sea2))
+define(ey43, calc(R*sea3))
+define(ey44, calc(R*sea4))
+define(ey45, calc(R*sea5))
+define(ey46, calc(R*sea6))
+define(ey47, calc(R*sea7))
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+vertices
+(
+    vert(0, 0, Zb) vlabel(r0b)
+    vert(0, 0, Zb) vlabel(r0sb)
+    vert(0, 1, Zb) vlabel(r1b)
+    vert(0, 2, Zb) vlabel(r2b)
+    vert(0, 2, Zb) vlabel(r2sb)
+    vert(0, 3, Zb) vlabel(r3b)
+    vert(0, 4, Zb) vlabel(r4b)
+    vert(0, 4, Zb) vlabel(r4sb)
+    vert(0, 5, Zb) vlabel(r5b)
+    vert(0, 6, Zb) vlabel(r6b)
+    vert(0, 6, Zb) vlabel(r6sb)
+    vert(0, 7, Zb) vlabel(r7b)
+
+    vert(1, 0, Zb) vlabel(rb0b)
+    vert(1, 1, Zb) vlabel(rb1b)
+    vert(1, 2, Zb) vlabel(rb2b)
+    vert(1, 3, Zb) vlabel(rb3b)
+    vert(1, 4, Zb) vlabel(rb4b)
+    vert(1, 5, Zb) vlabel(rb5b)
+    vert(1, 6, Zb) vlabel(rb6b)
+    vert(1, 7, Zb) vlabel(rb7b)
+
+    vert(2, 0, Zb) vlabel(ri0b)
+    vert(2, 1, Zb) vlabel(ri1b)
+    vert(2, 2, Zb) vlabel(ri2b)
+    vert(2, 3, Zb) vlabel(ri3b)
+    vert(2, 4, Zb) vlabel(ri4b)
+    vert(2, 5, Zb) vlabel(ri5b)
+    vert(2, 6, Zb) vlabel(ri6b)
+    vert(2, 7, Zb) vlabel(ri7b)
+
+    vert(3, 0, Zb) vlabel(Rb0b)
+    vert(3, 1, Zb) vlabel(Rb1b)
+    vert(3, 2, Zb) vlabel(Rb2b)
+    vert(3, 3, Zb) vlabel(Rb3b)
+    vert(3, 4, Zb) vlabel(Rb4b)
+    vert(3, 5, Zb) vlabel(Rb5b)
+    vert(3, 6, Zb) vlabel(Rb6b)
+    vert(3, 7, Zb) vlabel(Rb7b)
+
+    vert(4, 0, Zb) vlabel(R0b)
+    vert(4, 1, Zb) vlabel(R1b)
+    vert(4, 1, Zb) vlabel(R1sb)
+    vert(4, 2, Zb) vlabel(R2b)
+    vert(4, 3, Zb) vlabel(R3b)
+    vert(4, 3, Zb) vlabel(R3sb)
+    vert(4, 4, Zb) vlabel(R4b)
+    vert(4, 5, Zb) vlabel(R5b)
+    vert(4, 5, Zb) vlabel(R5sb)
+    vert(4, 6, Zb) vlabel(R6b)
+    vert(4, 7, Zb) vlabel(R7b)
+    vert(4, 7, Zb) vlabel(R7sb)
+
+    vert(0, 0, Zt) vlabel(r0t)
+    vert(0, 0, Zt) vlabel(r0st)
+    vert(0, 1, Zt) vlabel(r1t)
+    vert(0, 2, Zt) vlabel(r2t)
+    vert(0, 2, Zt) vlabel(r2st)
+    vert(0, 3, Zt) vlabel(r3t)
+    vert(0, 4, Zt) vlabel(r4t)
+    vert(0, 4, Zt) vlabel(r4st)
+    vert(0, 5, Zt) vlabel(r5t)
+    vert(0, 6, Zt) vlabel(r6t)
+    vert(0, 6, Zt) vlabel(r6st)
+    vert(0, 7, Zt) vlabel(r7t)
+
+    vert(1, 0, Zt) vlabel(rb0t)
+    vert(1, 1, Zt) vlabel(rb1t)
+    vert(1, 2, Zt) vlabel(rb2t)
+    vert(1, 3, Zt) vlabel(rb3t)
+    vert(1, 4, Zt) vlabel(rb4t)
+    vert(1, 5, Zt) vlabel(rb5t)
+    vert(1, 6, Zt) vlabel(rb6t)
+    vert(1, 7, Zt) vlabel(rb7t)
+
+    vert(2, 0, Zt) vlabel(ri0t)
+    vert(2, 1, Zt) vlabel(ri1t)
+    vert(2, 2, Zt) vlabel(ri2t)
+    vert(2, 3, Zt) vlabel(ri3t)
+    vert(2, 4, Zt) vlabel(ri4t)
+    vert(2, 5, Zt) vlabel(ri5t)
+    vert(2, 6, Zt) vlabel(ri6t)
+    vert(2, 7, Zt) vlabel(ri7t)
+
+    vert(3, 0, Zt) vlabel(Rb0t)
+    vert(3, 1, Zt) vlabel(Rb1t)
+    vert(3, 2, Zt) vlabel(Rb2t)
+    vert(3, 3, Zt) vlabel(Rb3t)
+    vert(3, 4, Zt) vlabel(Rb4t)
+    vert(3, 5, Zt) vlabel(Rb5t)
+    vert(3, 6, Zt) vlabel(Rb6t)
+    vert(3, 7, Zt) vlabel(Rb7t)
+
+    vert(4, 0, Zt) vlabel(R0t)
+    vert(4, 1, Zt) vlabel(R1t)
+    vert(4, 1, Zt) vlabel(R1st)
+    vert(4, 2, Zt) vlabel(R2t)
+    vert(4, 3, Zt) vlabel(R3t)
+    vert(4, 3, Zt) vlabel(R3st)
+    vert(4, 4, Zt) vlabel(R4t)
+    vert(4, 5, Zt) vlabel(R5t)
+    vert(4, 5, Zt) vlabel(R5st)
+    vert(4, 6, Zt) vlabel(R6t)
+    vert(4, 7, Zt) vlabel(R7t)
+    vert(4, 7, Zt) vlabel(R7st)
+);
+
+blocks
+(
+    // block0
+    hex2D(r0, r1, rb1, rb0)
+    rotor
+    (Na Nr Nz)
+    simpleGrading (1 1 1)
+
+    // block1
+    hex2D(r1, r2s, rb2, rb1)
+    rotor
+    (Na Nr Nz)
+    simpleGrading (1 1 1)
+
+    // block2
+    hex2D(r2, r3, rb3, rb2)
+    rotor
+    (Na Nr Nz)
+    simpleGrading (1 1 1)
+
+    // block3
+    hex2D(r3, r4s, rb4, rb3)
+    rotor
+    (Na Nr Nz)
+    simpleGrading (1 1 1)
+
+    // block4
+    hex2D(r4, r5, rb5, rb4)
+    rotor
+    (Na Nr Nz)
+    simpleGrading (1 1 1)
+
+    // block5
+    hex2D(r5, r6s, rb6, rb5)
+    rotor
+    (Na Nr Nz)
+    simpleGrading (1 1 1)
+
+    // block6
+    hex2D(r6, r7, rb7, rb6)
+    rotor
+    (Na Nr Nz)
+    simpleGrading (1 1 1)
+
+    // block7
+    hex2D(r7, r0s, rb0, rb7)
+    rotor
+    (Na Nr Nz)
+    simpleGrading (1 1 1)
+
+    // block0
+    hex2D(rb0, rb1, ri1, ri0)
+    rotor
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block1
+    hex2D(rb1, rb2, ri2, ri1)
+    rotor
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block2
+    hex2D(rb2, rb3, ri3, ri2)
+    rotor
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block3
+    hex2D(rb3, rb4, ri4, ri3)
+    rotor
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block4
+    hex2D(rb4, rb5, ri5, ri4)
+    rotor
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block5
+    hex2D(rb5, rb6, ri6, ri5)
+    rotor
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block6
+    hex2D(rb6, rb7, ri7, ri6)
+    rotor
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block7
+    hex2D(rb7, rb0, ri0, ri7)
+    rotor
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block0
+    hex2D(ri0, ri1, Rb1, Rb0)
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block1
+    hex2D(ri1, ri2, Rb2, Rb1)
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block2
+    hex2D(ri2, ri3, Rb3, Rb2)
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block3
+    hex2D(ri3, ri4, Rb4, Rb3)
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block4
+    hex2D(ri4, ri5, Rb5, Rb4)
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block5
+    hex2D(ri5, ri6, Rb6, Rb5)
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block6
+    hex2D(ri6, ri7, Rb7, Rb6)
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block7
+    hex2D(ri7, ri0, Rb0, Rb7)
+    (Na Ni Nz)
+    simpleGrading (1 1 1)
+
+    // block0
+    hex2D(Rb0, Rb1, R1s, R0)
+    (Na NR Nz)
+    simpleGrading (1 1 1)
+
+    // block1
+    hex2D(Rb1, Rb2, R2, R1)
+    (Na NR Nz)
+    simpleGrading (1 1 1)
+
+    // block2
+    hex2D(Rb2, Rb3, R3s, R2)
+    (Na NR Nz)
+    simpleGrading (1 1 1)
+
+    // block3
+    hex2D(Rb3, Rb4, R4, R3)
+    (Na NR Nz)
+    simpleGrading (1 1 1)
+
+    // block4
+    hex2D(Rb4, Rb5, R5s, R4)
+    (Na NR Nz)
+    simpleGrading (1 1 1)
+
+    // block5
+    hex2D(Rb5, Rb6, R6, R5)
+    (Na NR Nz)
+    simpleGrading (1 1 1)
+
+    // block6
+    hex2D(Rb6, Rb7, R7s, R6)
+    (Na NR Nz)
+    simpleGrading (1 1 1)
+
+    // block7
+    hex2D(Rb7, Rb0, R0, R7)
+    (Na NR Nz)
+    simpleGrading (1 1 1)
+);
+
+edges
+(
+    arc r0b r1b evert(0, 0, Zb)
+    arc r1b r2sb evert(0, 1, Zb)
+    arc r2b r3b evert(0, 2, Zb)
+    arc r3b r4sb evert(0, 3, Zb)
+    arc r4b r5b evert(0, 4, Zb)
+    arc r5b r6sb evert(0, 5, Zb)
+    arc r6b r7b evert(0, 6, Zb)
+    arc r7b r0sb evert(0, 7, Zb)
+
+    arc rb0b rb1b evert(1, 0, Zb)
+    arc rb1b rb2b evert(1, 1, Zb)
+    arc rb2b rb3b evert(1, 2, Zb)
+    arc rb3b rb4b evert(1, 3, Zb)
+    arc rb4b rb5b evert(1, 4, Zb)
+    arc rb5b rb6b evert(1, 5, Zb)
+    arc rb6b rb7b evert(1, 6, Zb)
+    arc rb7b rb0b evert(1, 7, Zb)
+
+    arc ri0b ri1b evert(2, 0, Zb)
+    arc ri1b ri2b evert(2, 1, Zb)
+    arc ri2b ri3b evert(2, 2, Zb)
+    arc ri3b ri4b evert(2, 3, Zb)
+    arc ri4b ri5b evert(2, 4, Zb)
+    arc ri5b ri6b evert(2, 5, Zb)
+    arc ri6b ri7b evert(2, 6, Zb)
+    arc ri7b ri0b evert(2, 7, Zb)
+
+    arc Rb0b Rb1b evert(3, 0, Zb)
+    arc Rb1b Rb2b evert(3, 1, Zb)
+    arc Rb2b Rb3b evert(3, 2, Zb)
+    arc Rb3b Rb4b evert(3, 3, Zb)
+    arc Rb4b Rb5b evert(3, 4, Zb)
+    arc Rb5b Rb6b evert(3, 5, Zb)
+    arc Rb6b Rb7b evert(3, 6, Zb)
+    arc Rb7b Rb0b evert(3, 7, Zb)
+
+    arc R0b R1sb evert(4, 0, Zb)
+    arc R1b R2b evert(4, 1, Zb)
+    arc R2b R3sb evert(4, 2, Zb)
+    arc R3b R4b evert(4, 3, Zb)
+    arc R4b R5sb evert(4, 4, Zb)
+    arc R5b R6b evert(4, 5, Zb)
+    arc R6b R7sb evert(4, 6, Zb)
+    arc R7b R0b evert(4, 7, Zb)
+
+    arc r0t r1t evert(0, 0, Zt)
+    arc r1t r2st evert(0, 1, Zt)
+    arc r2t r3t evert(0, 2, Zt)
+    arc r3t r4st evert(0, 3, Zt)
+    arc r4t r5t evert(0, 4, Zt)
+    arc r5t r6st evert(0, 5, Zt)
+    arc r6t r7t evert(0, 6, Zt)
+    arc r7t r0st evert(0, 7, Zt)
+
+    arc rb0t rb1t evert(1, 0, Zt)
+    arc rb1t rb2t evert(1, 1, Zt)
+    arc rb2t rb3t evert(1, 2, Zt)
+    arc rb3t rb4t evert(1, 3, Zt)
+    arc rb4t rb5t evert(1, 4, Zt)
+    arc rb5t rb6t evert(1, 5, Zt)
+    arc rb6t rb7t evert(1, 6, Zt)
+    arc rb7t rb0t evert(1, 7, Zt)
+
+    arc ri0t ri1t evert(2, 0, Zt)
+    arc ri1t ri2t evert(2, 1, Zt)
+    arc ri2t ri3t evert(2, 2, Zt)
+    arc ri3t ri4t evert(2, 3, Zt)
+    arc ri4t ri5t evert(2, 4, Zt)
+    arc ri5t ri6t evert(2, 5, Zt)
+    arc ri6t ri7t evert(2, 6, Zt)
+    arc ri7t ri0t evert(2, 7, Zt)
+
+    arc Rb0t Rb1t evert(3, 0, Zt)
+    arc Rb1t Rb2t evert(3, 1, Zt)
+    arc Rb2t Rb3t evert(3, 2, Zt)
+    arc Rb3t Rb4t evert(3, 3, Zt)
+    arc Rb4t Rb5t evert(3, 4, Zt)
+    arc Rb5t Rb6t evert(3, 5, Zt)
+    arc Rb6t Rb7t evert(3, 6, Zt)
+    arc Rb7t Rb0t evert(3, 7, Zt)
+
+    arc R0t R1st evert(4, 0, Zt)
+    arc R1t R2t evert(4, 1, Zt)
+    arc R2t R3st evert(4, 2, Zt)
+    arc R3t R4t evert(4, 3, Zt)
+    arc R4t R5st evert(4, 4, Zt)
+    arc R5t R6t evert(4, 5, Zt)
+    arc R6t R7st evert(4, 6, Zt)
+    arc R7t R0t evert(4, 7, Zt)
+);
+
+patches
+(
+    wall rotor
+    (
+        quad2D(r0, r1)
+        quad2D(r1, r2s)
+        quad2D(r2, r3)
+        quad2D(r3, r4s)
+        quad2D(r4, r5)
+        quad2D(r5, r6s)
+        quad2D(r6, r7)
+        quad2D(r7, r0s)
+
+        quad2D(r0, rb0)
+        quad2D(r0s, rb0)
+
+        quad2D(r2, rb2)
+        quad2D(r2s, rb2)
+
+        quad2D(r4, rb4)
+        quad2D(r4s, rb4)
+
+        quad2D(r6, rb6)
+        quad2D(r6s, rb6)
+    )
+
+    wall stator
+    (
+        quad2D(R0, R1s)
+        quad2D(R1, R2)
+        quad2D(R2, R3s)
+        quad2D(R3, R4)
+        quad2D(R4, R5s)
+        quad2D(R5, R6)
+        quad2D(R6, R7s)
+        quad2D(R7, R0)
+
+        quad2D(R1, Rb1)
+        quad2D(R1s, Rb1)
+
+        quad2D(R3, Rb3)
+        quad2D(R3s, Rb3)
+
+        quad2D(R5, Rb5)
+        quad2D(R5s, Rb5)
+
+        quad2D(R7, Rb7)
+        quad2D(R7s, Rb7)
+    )
+
+    empty front
+    (
+        frontQuad(r0, r1, rb1, rb0)
+        frontQuad(r1, r2s, rb2, rb1)
+        frontQuad(r2, r3, rb3, rb2)
+        frontQuad(r3, r4s, rb4, rb3)
+        frontQuad(r4, r5, rb5, rb4)
+        frontQuad(r5, r6s, rb6, rb5)
+        frontQuad(r6, r7, rb7, rb6)
+        frontQuad(r7, r0s, rb0, rb7)
+        frontQuad(rb0, rb1, ri1, ri0)
+        frontQuad(rb1, rb2, ri2, ri1)
+        frontQuad(rb2, rb3, ri3, ri2)
+        frontQuad(rb3, rb4, ri4, ri3)
+        frontQuad(rb4, rb5, ri5, ri4)
+        frontQuad(rb5, rb6, ri6, ri5)
+        frontQuad(rb6, rb7, ri7, ri6)
+        frontQuad(rb7, rb0, ri0, ri7)
+        frontQuad(ri0, ri1, Rb1, Rb0)
+        frontQuad(ri1, ri2, Rb2, Rb1)
+        frontQuad(ri2, ri3, Rb3, Rb2)
+        frontQuad(ri3, ri4, Rb4, Rb3)
+        frontQuad(ri4, ri5, Rb5, Rb4)
+        frontQuad(ri5, ri6, Rb6, Rb5)
+        frontQuad(ri6, ri7, Rb7, Rb6)
+        frontQuad(ri7, ri0, Rb0, Rb7)
+        frontQuad(Rb0, Rb1, R1s, R0)
+        frontQuad(Rb1, Rb2, R2, R1)
+        frontQuad(Rb2, Rb3, R3s, R2)
+        frontQuad(Rb3, Rb4, R4, R3)
+        frontQuad(Rb4, Rb5, R5s, R4)
+        frontQuad(Rb5, Rb6, R6, R5)
+        frontQuad(Rb6, Rb7, R7s, R6)
+        frontQuad(Rb7, Rb0, R0, R7)
+    )
+
+    empty back
+    (
+        backQuad(r0, r1, rb1, rb0)
+        backQuad(r1, r2s, rb2, rb1)
+        backQuad(r2, r3, rb3, rb2)
+        backQuad(r3, r4s, rb4, rb3)
+        backQuad(r4, r5, rb5, rb4)
+        backQuad(r5, r6s, rb6, rb5)
+        backQuad(r6, r7, rb7, rb6)
+        backQuad(r7, r0s, rb0, rb7)
+        backQuad(rb0, rb1, ri1, ri0)
+        backQuad(rb1, rb2, ri2, ri1)
+        backQuad(rb2, rb3, ri3, ri2)
+        backQuad(rb3, rb4, ri4, ri3)
+        backQuad(rb4, rb5, ri5, ri4)
+        backQuad(rb5, rb6, ri6, ri5)
+        backQuad(rb6, rb7, ri7, ri6)
+        backQuad(rb7, rb0, ri0, ri7)
+        backQuad(ri0, ri1, Rb1, Rb0)
+        backQuad(ri1, ri2, Rb2, Rb1)
+        backQuad(ri2, ri3, Rb3, Rb2)
+        backQuad(ri3, ri4, Rb4, Rb3)
+        backQuad(ri4, ri5, Rb5, Rb4)
+        backQuad(ri5, ri6, Rb6, Rb5)
+        backQuad(ri6, ri7, Rb7, Rb6)
+        backQuad(ri7, ri0, Rb0, Rb7)
+        backQuad(Rb0, Rb1, R1s, R0)
+        backQuad(Rb1, Rb2, R2, R1)
+        backQuad(Rb2, Rb3, R3s, R2)
+        backQuad(Rb3, Rb4, R4, R3)
+        backQuad(Rb4, Rb5, R5s, R4)
+        backQuad(Rb5, Rb6, R6, R5)
+        backQuad(Rb6, Rb7, R7s, R6)
+        backQuad(Rb7, Rb0, R0, R7)
+    )
+);
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/polyMesh/boundary
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/polyMesh/boundary
@ -0,0 +1,50 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       polyBoundaryMesh;
+    location    "constant/polyMesh";
+    object      boundary;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+4
+(
+    rotor
+    {
+        type            wall;
+        inGroups        1(wall);
+        nFaces          192;
+        startFace       5952;
+    }
+    stator
+    {
+        type            wall;
+        inGroups        1(wall);
+        nFaces          192;
+        startFace       6144;
+    }
+    front
+    {
+        type            empty;
+        inGroups        1(empty);
+        nFaces          3072;
+        startFace       6336;
+    }
+    back
+    {
+        type            empty;
+        inGroups        1(empty);
+        nFaces          3072;
+        startFace       9408;
+    }
+)
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/transportProperties
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/constant/transportProperties
@ -19,28 +19,28 @@ muc             muc [ 1 -1 -1 0 0 0 0 ] 0.00178;

 plasticViscosityCoeff plasticViscosityCoeff [ 1 -1 -1 0 0 0 0 ] 0.00023143;

-plasticViscosityExponent plasticViscosityExponent [ 0 0 0 0 0 0 0 ] 0.17926;
+plasticViscosityExponent plasticViscosityExponent [ 0 0 0 0 0 0 0 ] 179.26;

 BinghamPlastic  on;

-yieldStressCoeff yieldStressCoeff [ 1 -1 -2 0 0 0 0 ] 5.5469e-07;
+yieldStressCoeff yieldStressCoeff [ 1 -1 -2 0 0 0 0 ] 0.00042189;

-yieldStressExponent yieldStressExponent [ 0 0 0 0 0 0 0 ] 95.25;
+yieldStressExponent yieldStressExponent [ 0 0 0 0 0 0 0 ] 1050.8;

 yieldStressOffset yieldStressOffset [ 0 0 0 0 0 0 0 ] 0;

 muMax           muMax [ 1 -1 -1 0 0 0 0 ] 10.0;

-rhoc            rhoc [ 1 -3 0 0 0 0 0 ] 1000;
+rhoc            rhoc [ 1 -3 0 0 0 0 0 ] 996;

-rhod            rhod [ 1 -3 0 0 0 0 0 ] 1042;
+rhod            rhod [ 1 -3 0 0 0 0 0 ] 1996;

 VdjModel        simple;

 simpleCoeffs
 {
    V0              V0 [ 0 1 -1 0 0 0 0 ] ( 0 -0.002198 0 );
-    a               a [ 0 0 0 0 0 0 0 ] 8.84;
+    a               a [ 0 0 0 0 0 0 0 ] 285.84;
    a1              a1 [ 0 0 0 0 0 0 0 ] 0;
    alphaMin        alphaMin [ 0 0 0 0 0 0 0 ] 0;
 }
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/makeMesh
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/makeMesh
@ -0,0 +1,6 @@
+#!/bin/sh
+
+m4 < constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
+blockMesh
+topoSet
+setsToZones -noFlipMap
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/controlDict
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/controlDict
@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

-application     settlingFoam;
+application     driftFluxFoam;

 startFrom       startTime;

@ -23,13 +23,13 @@ startTime       0;

 stopAt          endTime;

-endTime         8000;
+endTime         10;

-deltaT          0.1;
+deltaT          1e-3;

-writeControl    runTime;
+writeControl    adjustableRunTime;

-writeInterval   50;
+writeInterval   0.25;

 purgeWrite      0;

@ -37,7 +37,7 @@ writeFormat     ascii;

 writePrecision  6;

-writeCompression compressed;
+writeCompression uncompressed;

 timeFormat      general;

@ -45,4 +45,12 @@ timePrecision   6;

 runTimeModifiable yes;

+adjustTimeStep  yes;
+
+maxCo           0.5;
+maxAlphaCo      0.5;
+
+maxDeltaT       0.05;
+
+
 // ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/fvOptions
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/fvOptions
@ -0,0 +1,37 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "system";
+    object      fvOptions;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+MRF1
+{
+    type            MRFSource;
+    active          yes;
+    selectionMode   cellZone;
+    cellZone        rotor;
+
+    MRFSourceCoeffs
+    {
+        // Fixed patches (by default they 'move' with the MRF zone)
+        nonRotatingPatches ();
+
+        origin    (0 0 0);
+        axis      (0 0 1);
+        omega     constant 6.2831853;
+    }
+}
+
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/fvSchemes
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/fvSchemes
@ -27,13 +27,16 @@ gradSchemes

 divSchemes
 {
-    default         none;
+    default             none;

-    div(phi,U)      Gauss limitedLinearV 1;
-    div(phi,k)      Gauss limitedLinear 1;
-    div(phi,epsilon) Gauss limitedLinear 1;
-    div(phiAlpha,Alpha) Gauss limitedLinear01 1;
-    div(phiVdj,Vdj) Gauss linear;
+    div(rhoPhi,U)       Gauss linearUpwind grad(U);
+    div(phiVdj,Vdj)     Gauss linear;
+    div(phi,alpha)      Gauss vanLeer;
+    div(phirb,alpha)    Gauss vanLeer;
+    div(rhoPhi,k)       Gauss limitedLinear 1;
+    div(rhoPhi,epsilon) Gauss limitedLinear 1;
+
+    div((muEff*dev2(T(grad(U))))) Gauss linear;
 }

 laplacianSchemes
@ -54,7 +57,8 @@ snGradSchemes
 fluxRequired
 {
    default         no;
-    p_rgh             ;
+    p_rgh           ;
+    alpha           ;
 }


--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/fvSolution
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/fvSolution
@ -17,70 +17,66 @@ FoamFile

 solvers
 {
-    p_rgh
+    "alpha.*"
+    {
+        nAlphaCorr      1;
+        nAlphaSubCycles 3;
+
+        solver          smoothSolver;
+        smoother        symGaussSeidel;
+        tolerance       1e-6;
+        relTol          0;
+    }
+
+    "rho.*"
    {
        solver          PCG;
        preconditioner  DIC;
-        tolerance       1e-07;
-        relTol          0.01;
+        tolerance       1e-8;
+        relTol          0;
+    }
+
+    p_rgh
+    {
+        solver          GAMG;
+        tolerance       1e-6;
+        relTol          0.05;
+        smoother        GaussSeidel;
+        cacheAgglomeration true;
+        nCellsInCoarsestLevel 20;
+        agglomerator    faceAreaPair;
+        mergeLevels     1;
    }

    p_rghFinal
    {
        $p_rgh;
-        tolerance       1e-07;
        relTol          0;
    }

-    "(U|Alpha|k|epsilon)"
+    "(U|k|epsilon)"
    {
        solver          smoothSolver;
        smoother        symGaussSeidel;
-        tolerance       1e-8;
+        tolerance       1e-6;
        relTol          0.1;
    }

-    "(U|Alpha|k|epsilon)Final"
+    "(U|k|epsilon)Final"
    {
        $k;
-        tolerance       1e-8;
-        relTol          0;
-    }
-
-    rho
-    {
-        solver          PCG;
-        preconditioner  DIC;
-        tolerance       1e-8;
-        relTol          0.1;
-    }
-
-    rhoFinal
-    {
-        $rho;
-        tolerance       1e-8;
        relTol          0;
    }
 }

 PIMPLE
 {
+    momentumPredictor yes;
    nCorrectors     3;
    nNonOrthogonalCorrectors 0;
-}

-relaxationFactors
-{
-    fields
-    {
-    }
-    equations
-    {
-        "Alpha.*"       1;
-        "U.*"           1;
-        "k.*"           1;
-        "epsilon.*"     1;
-    }
+    pRefCell        0;
+    pRefValue       0;
 }


--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/setFieldsDict
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/setFieldsDict
@ -0,0 +1,36 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "system";
+    object      setFieldsDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defaultFieldValues
+(
+    volScalarFieldValue alpha.water 0
+);
+
+regions
+(
+    boxToCell
+    {
+        box (0 0 -1) (1 1 1);
+        fieldValues
+        (
+            volScalarFieldValue alpha.water 1
+        );
+    }
+);
+
+
+// ************************************************************************* //
--- a/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/topoSetDict
+++ b/tutorials/multiphase/driftFluxFoam/ras/mixerVessel2D/system/topoSetDict
@ -0,0 +1,32 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "system";
+    object      topoSetDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+actions
+(
+    {
+        name    rotor;
+        type    cellSet;
+        action  new;
+        source  zoneToCell;
+        sourceInfo
+        {
+            name rotor;
+        }
+    }
+);
+
+// ************************************************************************* //
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/0/Alpha
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/0/Alpha
@ -1,126 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    object      Alpha;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [0 0 0 0 0 0 0];
-
-internalField   uniform 0;
-
-boundaryField
-{
-    SYMP3
-    {
-        type            zeroGradient;
-    }
-
-    INLE1
-    {
-        type            fixedValue;
-        value           uniform 0.002;
-    }
-
-    OUTL9
-    {
-        type            zeroGradient;
-    }
-
-    OUTL10
-    {
-        type            zeroGradient;
-    }
-
-    OUTL11
-    {
-        type            zeroGradient;
-    }
-
-    OUTL12
-    {
-        type            zeroGradient;
-    }
-
-    WALL6
-    {
-        type            zeroGradient;
-    }
-
-    WALL8
-    {
-        type            zeroGradient;
-    }
-
-    WALL61
-    {
-        type            zeroGradient;
-    }
-
-    WALL62
-    {
-        type            zeroGradient;
-    }
-
-    WALL63
-    {
-        type            zeroGradient;
-    }
-
-    WALL64
-    {
-        type            zeroGradient;
-    }
-
-    WALL65
-    {
-        type            zeroGradient;
-    }
-
-    WALL66
-    {
-        type            zeroGradient;
-    }
-
-    WALL67
-    {
-        type            zeroGradient;
-    }
-
-    WALL68
-    {
-        type            zeroGradient;
-    }
-
-    WALL69
-    {
-        type            zeroGradient;
-    }
-
-    WALL7
-    {
-        type            zeroGradient;
-    }
-
-    WALL70
-    {
-        type            zeroGradient;
-    }
-
-    OUTL15
-    {
-        type            inletOutlet;
-        inletValue      uniform 0;
-    }
-}
-
-// ************************************************************************* //
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/0/U
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/0/U
@ -1,144 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     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
-{
-    SYMP3
-    {
-        type            slip;
-    }
-
-    INLE1
-    {
-        type            fixedValue;
-        value           uniform (0.1315 0 0);
-    }
-
-    OUTL9
-    {
-        type            fixedValue;
-        value           uniform (0 0.0177 0);
-    }
-
-    OUTL10
-    {
-        type            fixedValue;
-        value           uniform (0 0.0177 0);
-    }
-
-    OUTL11
-    {
-        type            fixedValue;
-        value           uniform (0 0.0177 0);
-    }
-
-    OUTL12
-    {
-        type            fixedValue;
-        value           uniform (0 0.0177 0);
-    }
-
-    WALL6
-    {
-        type            translatingWallVelocity;
-        U               (-0.003 0 0);
-        value           uniform (-0.003 0 0);
-    }
-
-    WALL8
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL61
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL62
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL63
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL64
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL65
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL66
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL67
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL68
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL69
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL7
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    WALL70
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    OUTL15
-    {
-        type            inletOutlet;
-        inletValue      uniform (0 0 0);
-    }
-}
-
-// ************************************************************************* //
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/0/epsilon
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/0/epsilon
@ -1,126 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    object      epsilon;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [0 2 -3 0 0 0 0];
-
-internalField   uniform 1.973e-07;
-
-boundaryField
-{
-    SYMP3
-    {
-        type            zeroGradient;
-    }
-
-    INLE1
-    {
-        type            fixedValue;
-        value           uniform 1.973e-07;
-    }
-
-    OUTL9
-    {
-        type            zeroGradient;
-    }
-
-    OUTL10
-    {
-        type            zeroGradient;
-    }
-
-    OUTL11
-    {
-        type            zeroGradient;
-    }
-
-    OUTL12
-    {
-        type            zeroGradient;
-    }
-
-    WALL6
-    {
-        type            zeroGradient;
-    }
-
-    WALL8
-    {
-        type            zeroGradient;
-    }
-
-    WALL61
-    {
-        type            zeroGradient;
-    }
-
-    WALL62
-    {
-        type            zeroGradient;
-    }
-
-    WALL63
-    {
-        type            zeroGradient;
-    }
-
-    WALL64
-    {
-        type            zeroGradient;
-    }
-
-    WALL65
-    {
-        type            zeroGradient;
-    }
-
-    WALL66
-    {
-        type            zeroGradient;
-    }
-
-    WALL67
-    {
-        type            zeroGradient;
-    }
-
-    WALL68
-    {
-        type            zeroGradient;
-    }
-
-    WALL69
-    {
-        type            zeroGradient;
-    }
-
-    WALL7
-    {
-        type            zeroGradient;
-    }
-
-    WALL70
-    {
-        type            zeroGradient;
-    }
-
-    OUTL15
-    {
-        type            inletOutlet;
-        inletValue      uniform 1.973e-07;
-    }
-}
-
-// ************************************************************************* //
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/0/k
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/0/k
@ -1,126 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    object      k;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [0 2 -2 0 0 0 0];
-
-internalField   uniform 0.000259;
-
-boundaryField
-{
-    SYMP3
-    {
-        type            zeroGradient;
-    }
-
-    INLE1
-    {
-        type            fixedValue;
-        value           uniform 0.000259;
-    }
-
-    OUTL9
-    {
-        type            zeroGradient;
-    }
-
-    OUTL10
-    {
-        type            zeroGradient;
-    }
-
-    OUTL11
-    {
-        type            zeroGradient;
-    }
-
-    OUTL12
-    {
-        type            zeroGradient;
-    }
-
-    WALL6
-    {
-        type            zeroGradient;
-    }
-
-    WALL8
-    {
-        type            zeroGradient;
-    }
-
-    WALL61
-    {
-        type            zeroGradient;
-    }
-
-    WALL62
-    {
-        type            zeroGradient;
-    }
-
-    WALL63
-    {
-        type            zeroGradient;
-    }
-
-    WALL64
-    {
-        type            zeroGradient;
-    }
-
-    WALL65
-    {
-        type            zeroGradient;
-    }
-
-    WALL66
-    {
-        type            zeroGradient;
-    }
-
-    WALL67
-    {
-        type            zeroGradient;
-    }
-
-    WALL68
-    {
-        type            zeroGradient;
-    }
-
-    WALL69
-    {
-        type            zeroGradient;
-    }
-
-    WALL7
-    {
-        type            zeroGradient;
-    }
-
-    WALL70
-    {
-        type            zeroGradient;
-    }
-
-    OUTL15
-    {
-        type            inletOutlet;
-        inletValue      uniform 0.000259;
-    }
-}
-
-// ************************************************************************* //
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/0/p_rgh
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/0/p_rgh
@ -1,144 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     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
-{
-    SYMP3
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    INLE1
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    OUTL9
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    OUTL10
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    OUTL11
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    OUTL12
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL6
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL8
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL61
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL62
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL63
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL64
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL65
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL66
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL67
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL68
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL69
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL7
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    WALL70
-    {
-        type            fixedFluxPressure;
-        value           uniform 0;
-    }
-
-    OUTL15
-    {
-        type            fixedValue;
-        value           uniform 0;
-    }
-}
-
-// ************************************************************************* //
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/Allclean
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/Allclean
@ -1,9 +0,0 @@
-#!/bin/sh
-cd ${0%/*} || exit 1    # run from this directory
-
-# Clean time directories only
-
-rm -rf *[1-9]*
-rm -f log.* 2>/dev/null
-
-# ----------------------------------------------------------------- end-of-file
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/boundary
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/boundary
@ -1,160 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       polyBoundaryMesh;
-    object      boundary;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-(
-    SYMP3
-    {
-        type            patch;
-        startFace       53708;
-        nFaces          3191;
-    }
-
-    INLE1
-    {
-        type            patch;
-        startFace       56899;
-        nFaces          45;
-    }
-
-    OUTL9
-    {
-        type            patch;
-        startFace       56944;
-        nFaces          11;
-    }
-
-    OUTL10
-    {
-        type            patch;
-        startFace       56955;
-        nFaces          11;
-    }
-
-    OUTL11
-    {
-        type            patch;
-        startFace       56966;
-        nFaces          11;
-    }
-
-    OUTL12
-    {
-        type            patch;
-        startFace       56977;
-        nFaces          11;
-    }
-
-    WALL6
-    {
-        type            wall;
-        startFace       56988;
-        nFaces          1474;
-    }
-
-    WALL8
-    {
-        type            wall;
-        startFace       58462;
-        nFaces          1640;
-    }
-
-    WALL61
-    {
-        type            wall;
-        startFace       60102;
-        nFaces          44;
-    }
-
-    WALL62
-    {
-        type            wall;
-        startFace       60146;
-        nFaces          78;
-    }
-
-    WALL63
-    {
-        type            wall;
-        startFace       60224;
-        nFaces          255;
-    }
-
-    WALL64
-    {
-        type            wall;
-        startFace       60479;
-        nFaces          157;
-    }
-
-    WALL65
-    {
-        type            wall;
-        startFace       60636;
-        nFaces          35;
-    }
-
-    WALL66
-    {
-        type            wall;
-        startFace       60671;
-        nFaces          60;
-    }
-
-    WALL67
-    {
-        type            wall;
-        startFace       60731;
-        nFaces          55;
-    }
-
-    WALL68
-    {
-        type            wall;
-        startFace       60786;
-        nFaces          116;
-    }
-
-    WALL69
-    {
-        type            wall;
-        startFace       60902;
-        nFaces          24;
-    }
-
-    WALL7
-    {
-        type            wall;
-        startFace       60926;
-        nFaces          121;
-    }
-
-    WALL70
-    {
-        type            wall;
-        startFace       61047;
-        nFaces          182;
-    }
-
-    OUTL15
-    {
-        type            patch;
-        startFace       61229;
-        nFaces          14;
-    }
-
-)
-
-// ************************************************************************* //
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/cells.gz
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/cells.gz
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/faces.gz
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/faces.gz
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/neighbour.gz
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/neighbour.gz
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/owner.gz
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/owner.gz
--- a/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/points.gz
+++ b/tutorials/multiphase/settlingFoam/ras/tank3D/constant/polyMesh/points.gz