Initial commit

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/overCompressibleInterDyMFoam/Make/options

+EXE_INC = \
+    -I.. \
+    -I../../VoF \
+    -I../../interFoam/overInterDyMFoam \
+    -I../twoPhaseMixtureThermo \
+    -I../VoFphaseCompressibleTurbulenceModels/lnInclude \
+    -I$(LIB_SRC)/finiteVolume/lnInclude \
+    -I$(LIB_SRC)/meshTools/lnInclude \
+    -I$(LIB_SRC)/transportModels/compressible/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
+    -I$(LIB_SRC)/transportModels/twoPhaseMixture/lnInclude \
+    -I$(LIB_SRC)/transportModels/interfaceProperties/lnInclude \
+    -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
+    -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
+    -I$(LIB_SRC)/TurbulenceModels/phaseCompressible/lnInclude \
+    -I$(LIB_SRC)/dynamicMesh/lnInclude \
+    -I$(LIB_SRC)/dynamicFvMesh/lnInclude \
+    -I$(FOAM_SOLVERS)/incompressible/pimpleFoam/overPimpleDyMFoam \
+    -I$(LIB_SRC)/overset/lnInclude
+
+EXE_LIBS = \
+    -lfiniteVolume \
+    -lfvOptions \
+    -lmeshTools \
+    -ltwoPhaseMixtureThermo \
+    -ltwoPhaseSurfaceTension \
+    -lcompressibleTransportModels \
+    -lfluidThermophysicalModels \
+    -lspecie \
+    -ltwoPhaseMixture \
+    -ltwoPhaseProperties \
+    -linterfaceProperties \
+    -lturbulenceModels \
+    -lcompressibleTurbulenceModels \
+    -lVoFphaseCompressibleTurbulenceModels \
+    -ldynamicMesh \
+    -ldynamicFvMesh \
+    -ltopoChangerFvMesh \
+    -loverset \
+    -lwaveModels

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/overCompressibleInterDyMFoam/TEqn.H

+{
+    fvScalarMatrix TEqn
+    (
+        fvm::ddt(rho, T) + fvm::div(rhoPhi, T) - fvm::Sp(contErr, T)
+      - fvm::laplacian(turbulence.alphaEff(), T)
+      + (
+             divUp()// - contErr/rho*p
+          +  (fvc::ddt(rho, K) + fvc::div(rhoPhi, K))() - contErr*K
+        )
+       *(
+           alpha1()/mixture.thermo1().Cv()()
+         + alpha2()/mixture.thermo2().Cv()()
+        )
+     ==
+        fvOptions(rho, T)
+    );
+
+    TEqn.relax();
+
+    fvOptions.constrain(TEqn);
+
+    TEqn.solve();
+
+    fvOptions.correct(T);
+
+    mixture.correctThermo();
+    mixture.correct();
+}

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/overCompressibleInterDyMFoam/UEqn.H

+    MRF.correctBoundaryVelocity(U);
+
+    fvVectorMatrix UEqn
+    (
+        fvm::ddt(rho, U) + fvm::div(rhoPhi, U)
+      - fvm::Sp(contErr, U)
+      + MRF.DDt(rho, U)
+      + turbulence.divDevRhoReff(U)
+     ==
+        fvOptions(rho, U)
+    );
+
+    UEqn.relax();
+
+    fvOptions.constrain(UEqn);
+
+    if (pimple.momentumPredictor())
+    {
+        solve
+        (
+            UEqn
+         ==
+            cellMask*fvc::reconstruct
+            (
+                (
+                    mixture.surfaceTensionForce()
+                  - ghf*fvc::snGrad(rho)
+                  - fvc::snGrad(p_rgh)
+                ) * mesh.magSf()
+            )
+        );
+
+        fvOptions.correct(U);
+
+        K = 0.5*magSqr(U);
+    }

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/overCompressibleInterDyMFoam/alphaSuSp.H

+volScalarField::Internal Sp
+(
+    IOobject
+    (
+        "Sp",
+        runTime.timeName(),
+        mesh
+    ),
+    mesh,
+    dimensionedScalar(dgdt.dimensions(), Zero)
+);
+
+volScalarField::Internal Su
+(
+    IOobject
+    (
+        "Su",
+        runTime.timeName(),
+        mesh
+    ),
+    mesh,
+    dimensionedScalar(dgdt.dimensions(), Zero)
+);
+
+forAll(dgdt, celli)
+{
+    if (dgdt[celli] > 0.0)
+    {
+        Sp[celli] -= dgdt[celli]/max(1.0 - alpha1[celli], 1e-4);
+        Su[celli] += dgdt[celli]/max(1.0 - alpha1[celli], 1e-4);
+    }
+    else if (dgdt[celli] < 0.0)
+    {
+        Sp[celli] += dgdt[celli]/max(alpha1[celli], 1e-4);
+    }
+}
+
+volScalarField::Internal divU
+(
+    mesh.moving()
+  ? fvc::div(phi + mesh.phi())
+  : fvc::div(phi)
+);

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/overCompressibleInterDyMFoam/createFields.H

+#include "createRDeltaT.H"
+
+Info<< "Reading field p_rgh\n" << endl;
+volScalarField p_rgh
+(
+    IOobject
+    (
+        "p_rgh",
+        runTime.timeName(),
+        mesh,
+        IOobject::MUST_READ,
+        IOobject::AUTO_WRITE
+    ),
+    mesh
+);
+
+Info<< "Reading field U\n" << endl;
+volVectorField U
+(
+    IOobject
+    (
+        "U",
+        runTime.timeName(),
+        mesh,
+        IOobject::MUST_READ,
+        IOobject::AUTO_WRITE
+    ),
+    mesh
+);
+
+#include "createPhi.H"
+
+Info<< "Constructing twoPhaseMixtureThermo\n" << endl;
+twoPhaseMixtureThermo mixture(U, phi);
+
+volScalarField& alpha1(mixture.alpha1());
+volScalarField& alpha2(mixture.alpha2());
+
+Info<< "Reading thermophysical properties\n" << endl;
+
+const volScalarField& rho1 = mixture.thermo1().rho();
+const volScalarField& rho2 = mixture.thermo2().rho();
+
+volScalarField rho
+(
+    IOobject
+    (
+        "rho",
+        runTime.timeName(),
+        mesh,
+        IOobject::READ_IF_PRESENT,
+        IOobject::AUTO_WRITE
+    ),
+    alpha1*rho1 + alpha2*rho2
+);
+
+
+dimensionedScalar pMin
+(
+    "pMin",
+    dimPressure,
+    mixture
+);
+
+mesh.setFluxRequired(p_rgh.name());
+mesh.setFluxRequired(alpha1.name());
+
+
+#include "readGravitationalAcceleration.H"
+#include "readhRef.H"
+#include "gh.H"
+
+
+// Mass flux
+// Initialisation does not matter because rhoPhi is reset after the
+// alpha1 solution before it is used in the U equation.
+surfaceScalarField rhoPhi
+(
+    IOobject
+    (
+        "rhoPhi",
+        runTime.timeName(),
+        mesh,
+        IOobject::NO_READ,
+        IOobject::NO_WRITE
+    ),
+    fvc::interpolate(rho)*phi
+);
+
+volScalarField dgdt(alpha1*fvc::div(phi));
+
+#include "createAlphaFluxes.H"
+
+// Construct compressible turbulence model
+compressibleInterPhaseTransportModel turbulence
+(
+    rho,
+    U,
+    phi,
+    rhoPhi,
+    alphaPhi10,
+    mixture
+);
+
+#include "createK.H"
+
+#include "createMRF.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("nHat");
+    nonInt.insert("surfaceIntegrate(phi)");
+    nonInt.insert("surfaceIntegrate(phiHbyA)");
+    nonInt.insert("cellMask");
+    nonInt.insert("cellDisplacement");
+    nonInt.insert("interpolatedCells");
+    nonInt.insert("cellInterpolationWeight");
+    nonInt.insert("pcorr");
+}
+
+// Mask field for zeroing out contributions on hole cells
+#include "createCellMask.H"
+
+surfaceScalarField faceMask
+(
+    localMin<scalar>(mesh).interpolate(cellMask)
+);
+
+// Create bool field with interpolated cells
+#include "createInterpolatedCells.H"

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/overCompressibleInterDyMFoam/overCompressibleInterDyMFoam.C

+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2021 OpenCFD Ltd.
+-------------------------------------------------------------------------------
+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
+    overCompressibleInterDyMFoam
+
+Group
+    grpMultiphaseSolvers
+
+Description
+    Solver for two compressible, non-isothermal, immiscible fluids using VOF
+    (i.e. volume of fluid) phase-fraction based interface capturing approach.
+
+    This solver supports dynamic mesh motions including overset cases.
+
+    The momentum and other fluid properties are of the "mixture" and a single
+    momentum equation is solved.
+
+    Either mixture or two-phase transport modelling may be selected.  In the
+    mixture approach, a single laminar, RAS or LES model is selected to model
+    the momentum stress.  In the Euler-Euler two-phase approach separate
+    laminar, RAS or LES selected models are selected for each of the phases.
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvCFD.H"
+#include "dynamicFvMesh.H"
+#include "CMULES.H"
+#include "EulerDdtScheme.H"
+#include "CrankNicolsonDdtScheme.H"
+#include "subCycle.H"
+#include "compressibleInterPhaseTransportModel.H"
+#include "pimpleControl.H"
+#include "fvOptions.H"
+#include "fvcSmooth.H"
+
+#include "cellCellStencilObject.H"
+#include "localMin.H"
+#include "interpolationCellPoint.H"
+#include "transform.H"
+#include "fvMeshSubset.H"
+#include "oversetAdjustPhi.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+int main(int argc, char *argv[])
+{
+    argList::addNote
+    (
+        "Solver for two compressible, non-isothermal, immiscible fluids"
+        " using VOF phase-fraction based interface capturing approach.\n"
+        "Supports dynamic mesh motions including overset cases."
+    );
+
+    #include "postProcess.H"
+
+    #include "addCheckCaseOptions.H"
+    #include "setRootCaseLists.H"
+    #include "createTime.H"
+    #include "createDynamicFvMesh.H"
+    pimpleControl pimple(mesh);
+
+    #include "createTimeControls.H"
+    #include "createDyMControls.H"
+    #include "createFields.H"
+
+    volScalarField& p = mixture.p();
+    volScalarField& T = mixture.T();
+    const volScalarField& psi1 = mixture.thermo1().psi();
+    const volScalarField& psi2 = mixture.thermo2().psi();
+
+    #include "correctPhi.H"
+    #include "createUf.H"
+
+    if (!LTS)
+    {
+        #include "CourantNo.H"
+        #include "setInitialDeltaT.H"
+    }
+
+    #include "setCellMask.H"
+    #include "setInterpolatedCells.H"
+
+    // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+    Info<< "\nStarting time loop\n" << endl;
+
+    while (runTime.run())
+    {
+        #include "readControls.H"
+
+        if (LTS)
+        {
+            #include "setRDeltaT.H"
+        }
+        else
+        {
+            #include "CourantNo.H"
+            #include "alphaCourantNo.H"
+            #include "setDeltaT.H"
+        }
+
+        ++runTime;
+
+        Info<< "Time = " << runTime.timeName() << nl << endl;
+
+        // --- Pressure-velocity PIMPLE corrector loop
+        while (pimple.loop())
+        {
+            if (pimple.firstIter() || moveMeshOuterCorrectors)
+            {
+                scalar timeBeforeMeshUpdate = runTime.elapsedCpuTime();
+
+                mesh.update();
+
+                if (mesh.changing())
+                {
+                    Info<< "Execution time for mesh.update() = "
+                        << runTime.elapsedCpuTime() - timeBeforeMeshUpdate
+                        << " s" << endl;
+
+                    // Do not apply previous time-step mesh compression flux
+                    // if the mesh topology changed
+                    if (mesh.topoChanging())
+                    {
+                        talphaPhi1Corr0.clear();
+                    }
+
+                    gh = (g & mesh.C()) - ghRef;
+                    ghf = (g & mesh.Cf()) - ghRef;
+
+                    // Update cellMask field for blocking out hole cells
+                    #include "setCellMask.H"
+                    #include "setInterpolatedCells.H"
+
+                    faceMask =
+                        localMin<scalar>(mesh).interpolate(cellMask.oldTime());
+
+                    // Zero Uf on old faceMask (H-I)
+                    Uf *= faceMask;
+
+                    const surfaceVectorField Uint(fvc::interpolate(U));
+                    // Update Uf and phi on new C-I faces
+                    Uf += (1-faceMask)*Uint;
+
+                    // Update Uf boundary
+                    forAll(Uf.boundaryField(), patchI)
+                    {
+                        Uf.boundaryFieldRef()[patchI] =
+                            Uint.boundaryField()[patchI];
+                    }
+
+                    phi = mesh.Sf() & Uf;
+
+                    // Correct phi on individual regions
+                    if (correctPhi)
+                    {
+                         #include "correctPhi.H"
+                    }
+
+                    mixture.correct();
+
+                    // Zero phi on current H-I
+                    faceMask = localMin<scalar>(mesh).interpolate(cellMask);
+
+                    phi *= faceMask;
+                    U *= cellMask;
+
+                    // Make the flux relative to the mesh motion
+                    fvc::makeRelative(phi, U);
+
+                }
+
+                if (mesh.changing() && checkMeshCourantNo)
+                {
+                    #include "meshCourantNo.H"
+                }
+            }
+
+            #include "alphaControls.H"
+            #include "compressibleAlphaEqnSubCycle.H"
+
+            const surfaceScalarField faceMask
+            (
+                localMin<scalar>(mesh).interpolate(cellMask)
+            );
+            rhoPhi *= faceMask;
+
+            turbulence.correctPhasePhi();
+
+            #include "UEqn.H"
+            volScalarField divUp("divUp", fvc::div(fvc::absolute(phi, U), p));
+            #include "TEqn.H"
+
+            // --- Pressure corrector loop
+            while (pimple.correct())
+            {
+                #include "pEqn.H"
+            }
+
+            if (pimple.turbCorr())
+            {
+                turbulence.correct();
+            }
+        }
+
+        runTime.write();
+
+        runTime.printExecutionTime(Info);
+    }
+
+    Info<< "End\n" << endl;
+
+    return 0;
+}
+
+
+// ************************************************************************* //

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/overCompressibleInterDyMFoam/pEqn.H

+{
+    volScalarField rAU("rAU", 1.0/UEqn.A());
+
+    surfaceScalarField rAUf("rAUf", fvc::interpolate(rAU));
+    volVectorField HbyA(constrainHbyA(rAU*UEqn.H(), U, p_rgh));
+
+    surfaceScalarField phiHbyA
+    (
+        "phiHbyA",
+        fvc::flux(HbyA)
+    );
+
+    if (ddtCorr)
+    {
+        surfaceScalarField faceMaskOld
+        (
+            localMin<scalar>(mesh).interpolate(cellMask.oldTime())
+        );
+        phiHbyA +=
+            MRF.zeroFilter
+            (
+                fvc::interpolate(rho*rAU)*faceMaskOld*fvc::ddtCorr(U, Uf)
+            );
+    }
+
+    MRF.makeRelative(phiHbyA);
+
+    surfaceScalarField phig
+    (
+        (
+            mixture.surfaceTensionForce()
+          - ghf*fvc::snGrad(rho)
+        )*faceMask*rAUf*mesh.magSf()
+    );
+
+    phiHbyA += phig;
+
+    // Update the pressure BCs to ensure flux consistency
+    constrainPressure(p_rgh, U, phiHbyA, rAUf, MRF);
+
+    tmp<fvScalarMatrix> p_rghEqnComp1;
+    tmp<fvScalarMatrix> p_rghEqnComp2;
+
+    if (pimple.transonic())
+    {
+        #include "rhofs.H"
+
+        surfaceScalarField phid1("phid1", fvc::interpolate(psi1)*phi);
+        surfaceScalarField phid2("phid2", fvc::interpolate(psi2)*phi);
+
+        p_rghEqnComp1 =
+            pos(alpha1)
+           *(
+                (
+                    fvc::ddt(alpha1, rho1) + fvc::div(alphaPhi1*rho1f)
+                  - (fvOptions(alpha1, mixture.thermo1().rho())&rho1)
+                )/rho1
+              - fvc::ddt(alpha1) - fvc::div(alphaPhi1)
+              + (alpha1/rho1)
+               *correction
+                (
+                    psi1*fvm::ddt(p_rgh)
+                  + fvm::div(phid1, p_rgh) - fvm::Sp(fvc::div(phid1), p_rgh)
+                )
+            );
+        p_rghEqnComp1.ref().relax();
+
+        p_rghEqnComp2 =
+            pos(alpha2)
+           *(
+               (
+                   fvc::ddt(alpha2, rho2) + fvc::div(alphaPhi2*rho2f)
+                 - (fvOptions(alpha2, mixture.thermo2().rho())&rho2)
+               )/rho2
+             - fvc::ddt(alpha2) - fvc::div(alphaPhi2)
+             + (alpha2/rho2)
+              *correction
+               (
+                   psi2*fvm::ddt(p_rgh)
+                 + fvm::div(phid2, p_rgh) - fvm::Sp(fvc::div(phid2), p_rgh)
+               )
+           );
+        p_rghEqnComp2.ref().relax();
+    }
+    else
+    {
+        #include "rhofs.H"
+
+        p_rghEqnComp1 =
+            pos(alpha1)
+           *(
+                (
+                    fvc::ddt(alpha1, rho1) + fvc::div(alphaPhi1*rho1f)
+                  - (fvOptions(alpha1, mixture.thermo1().rho())&rho1)
+                )/rho1
+              - fvc::ddt(alpha1) - fvc::div(alphaPhi1)
+              + (alpha1*psi1/rho1)*correction(fvm::ddt(p_rgh))
+            );
+
+        p_rghEqnComp2 =
+            pos(alpha2)
+           *(
+               (
+                   fvc::ddt(alpha2, rho2) + fvc::div(alphaPhi2*rho2f)
+                 - (fvOptions(alpha2, mixture.thermo2().rho())&rho2)
+               )/rho2
+             - fvc::ddt(alpha2) - fvc::div(alphaPhi2)
+             + (alpha2*psi2/rho2)*correction(fvm::ddt(p_rgh))
+            );
+    }
+
+    // Cache p_rgh prior to solve for density update
+    volScalarField p_rgh_0(p_rgh);
+
+    while (pimple.correctNonOrthogonal())
+    {
+        fvScalarMatrix p_rghEqnIncomp
+        (
+            fvc::div(phiHbyA)
+          - fvm::laplacian(rAUf, p_rgh)
+        );
+
+        solve
+        (
+            p_rghEqnComp1() + p_rghEqnComp2() + p_rghEqnIncomp,
+            mesh.solver(p_rgh.select(pimple.finalInnerIter()))
+        );
+
+        if (pimple.finalNonOrthogonalIter())
+        {
+            p = max(p_rgh + (alpha1*rho1 + alpha2*rho2)*gh, pMin);
+            p_rgh = p - (alpha1*rho1 + alpha2*rho2)*gh;
+
+            dgdt =
+            (
+                alpha1*(p_rghEqnComp2 & p_rgh)
+              - alpha2*(p_rghEqnComp1 & p_rgh)
+            );
+
+            phi = phiHbyA + p_rghEqnIncomp.flux();
+
+            U =
+                cellMask*
+                (
+                    HbyA
+                  + rAU*fvc::reconstruct((phig + p_rghEqnIncomp.flux())/rAUf)
+                );
+
+            U.correctBoundaryConditions();
+            fvOptions.correct(U);
+        }
+    }
+
+    {
+        Uf = fvc::interpolate(U);
+        surfaceVectorField n(mesh.Sf()/mesh.magSf());
+        Uf += n*(fvc::absolute(phi, U)/mesh.magSf() - (n & Uf));
+    }
+
+    // Make the fluxes relative to the mesh motion
+    fvc::makeRelative(phi, U);
+
+    // Zero faces H-I for transport Eq after pEq
+    phi *= faceMask;
+
+    // Update densities from change in p_rgh
+    mixture.thermo1().correctRho(psi1*(p_rgh - p_rgh_0));
+    mixture.thermo2().correctRho(psi2*(p_rgh - p_rgh_0));
+
+    rho = alpha1*rho1 + alpha2*rho2;
+
+    // Correct p_rgh for consistency with p and the updated densities
+    p_rgh = p - rho*gh;
+    p_rgh.correctBoundaryConditions();
+
+    K = 0.5*magSqr(U);
+}

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/pEqn.H

+{
+    volScalarField rAU("rAU", 1.0/UEqn.A());
+    surfaceScalarField rAUf("rAUf", fvc::interpolate(rAU));
+    volVectorField HbyA(constrainHbyA(rAU*UEqn.H(), U, p_rgh));
+    surfaceScalarField phiHbyA
+    (
+        "phiHbyA",
+        fvc::flux(HbyA)
+      + MRF.zeroFilter(fvc::interpolate(rho*rAU)*fvc::ddtCorr(U, phi))
+    );
+    MRF.makeRelative(phiHbyA);
+
+    surfaceScalarField phig
+    (
+        (
+            mixture.surfaceTensionForce()
+          - ghf*fvc::snGrad(rho)
+        )*rAUf*mesh.magSf()
+    );
+
+    phiHbyA += phig;
+
+    // Update the pressure BCs to ensure flux consistency
+    constrainPressure(p_rgh, U, phiHbyA, rAUf, MRF);
+
+    tmp<fvScalarMatrix> p_rghEqnComp1;
+    tmp<fvScalarMatrix> p_rghEqnComp2;
+
+    if (pimple.transonic())
+    {
+        #include "rhofs.H"
+
+        surfaceScalarField phid1("phid1", fvc::interpolate(psi1)*phi);
+        surfaceScalarField phid2("phid2", fvc::interpolate(psi2)*phi);
+
+        p_rghEqnComp1 =
+            pos(alpha1)
+           *(
+                (
+                    fvc::ddt(alpha1, rho1) + fvc::div(alphaPhi1*rho1f)
+                  - (fvOptions(alpha1, mixture.thermo1().rho())&rho1)
+                )/rho1
+              - fvc::ddt(alpha1) - fvc::div(alphaPhi1)
+              + (alpha1/rho1)
+               *correction
+                (
+                    psi1*fvm::ddt(p_rgh)
+                  + fvm::div(phid1, p_rgh) - fvm::Sp(fvc::div(phid1), p_rgh)
+                )
+            );
+        p_rghEqnComp1.ref().relax();
+
+        p_rghEqnComp2 =
+            pos(alpha2)
+           *(
+               (
+                   fvc::ddt(alpha2, rho2) + fvc::div(alphaPhi2*rho2f)
+                 - (fvOptions(alpha2, mixture.thermo2().rho())&rho2)
+               )/rho2
+             - fvc::ddt(alpha2) - fvc::div(alphaPhi2)
+             + (alpha2/rho2)
+              *correction
+               (
+                   psi2*fvm::ddt(p_rgh)
+                 + fvm::div(phid2, p_rgh) - fvm::Sp(fvc::div(phid2), p_rgh)
+               )
+           );
+        p_rghEqnComp2.ref().relax();
+    }
+    else
+    {
+        #include "rhofs.H"
+
+        p_rghEqnComp1 =
+            pos(alpha1)
+           *(
+                (
+                    fvc::ddt(alpha1, rho1) + fvc::div(alphaPhi1*rho1f)
+                  - (fvOptions(alpha1, mixture.thermo1().rho())&rho1)
+                )/rho1
+              - fvc::ddt(alpha1) - fvc::div(alphaPhi1)
+              + (alpha1*psi1/rho1)*correction(fvm::ddt(p_rgh))
+            );
+
+        p_rghEqnComp2 =
+            pos(alpha2)
+           *(
+               (
+                   fvc::ddt(alpha2, rho2) + fvc::div(alphaPhi2*rho2f)
+                 - (fvOptions(alpha2, mixture.thermo2().rho())&rho2)
+               )/rho2
+             - fvc::ddt(alpha2) - fvc::div(alphaPhi2)
+             + (alpha2*psi2/rho2)*correction(fvm::ddt(p_rgh))
+            );
+    }
+
+    // Cache p_rgh prior to solve for density update
+    volScalarField p_rgh_0(p_rgh);
+
+    while (pimple.correctNonOrthogonal())
+    {
+        fvScalarMatrix p_rghEqnIncomp
+        (
+            fvc::div(phiHbyA)
+          - fvm::laplacian(rAUf, p_rgh)
+        );
+
+        solve
+        (
+            p_rghEqnComp1() + p_rghEqnComp2() + p_rghEqnIncomp,
+            mesh.solver(p_rgh.select(pimple.finalInnerIter()))
+        );
+
+        if (pimple.finalNonOrthogonalIter())
+        {
+            p = max(p_rgh + (alpha1*rho1 + alpha2*rho2)*gh, pMin);
+            p_rgh = p - (alpha1*rho1 + alpha2*rho2)*gh;
+
+            dgdt =
+            (
+                alpha1*(p_rghEqnComp2 & p_rgh)
+              - alpha2*(p_rghEqnComp1 & p_rgh)
+            );
+
+            phi = phiHbyA + p_rghEqnIncomp.flux();
+
+            U = HbyA
+              + rAU*fvc::reconstruct((phig + p_rghEqnIncomp.flux())/rAUf);
+            U.correctBoundaryConditions();
+            fvOptions.correct(U);
+        }
+    }
+
+    // Update densities from change in p_rgh
+    mixture.thermo1().correctRho(psi1*(p_rgh - p_rgh_0));
+    mixture.thermo2().correctRho(psi2*(p_rgh - p_rgh_0));
+
+    rho = alpha1*rho1 + alpha2*rho2;
+
+    // Correct p_rgh for consistency with p and the updated densities
+    p_rgh = p - rho*gh;
+    p_rgh.correctBoundaryConditions();
+
+    K = 0.5*magSqr(U);
+}

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/rhofs.H

+surfaceScalarField rho1f(fvc::interpolate(rho1));
+surfaceScalarField rho2f(fvc::interpolate(rho2));

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/surfaceTensionModels/Make/files

+liquidProperties/liquidPropertiesSurfaceTension.C
+
+LIB = $(FOAM_LIBBIN)/libtwoPhaseSurfaceTension

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/surfaceTensionModels/Make/options

+EXE_INC = \
+    -I$(LIB_SRC)/transportModels/interfaceProperties/lnInclude \
+    -I$(LIB_SRC)/transportModels/compressible/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/thermophysicalProperties/lnInclude \
+    -I$(LIB_SRC)/finiteVolume/lnInclude
+
+LIB_LIBS = \
+    -linterfaceProperties \
+    -lcompressibleTransportModels \
+    -lfluidThermophysicalModels \
+    -lspecie \
+    -lthermophysicalProperties \
+    -lfiniteVolume

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/surfaceTensionModels/liquidProperties/liquidPropertiesSurfaceTension.C

+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2017 OpenFOAM Foundation
+    Copyright (C) 2019 OpenCFD Ltd.
+-------------------------------------------------------------------------------
+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/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "liquidPropertiesSurfaceTension.H"
+#include "liquidThermo.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace surfaceTensionModels
+{
+    defineTypeNameAndDebug(liquidProperties, 0);
+    addToRunTimeSelectionTable
+    (
+        surfaceTensionModel,
+        liquidProperties,
+        dictionary
+    );
+}
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::surfaceTensionModels::liquidProperties::liquidProperties
+(
+    const dictionary& dict,
+    const fvMesh& mesh
+)
+:
+    surfaceTensionModel(mesh),
+    phaseName_(dict.get<word>("phase"))
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+Foam::tmp<Foam::volScalarField>
+Foam::surfaceTensionModels::liquidProperties::sigma() const
+{
+    const heRhoThermopureMixtureliquidProperties& thermo =
+        mesh_.lookupObject<heRhoThermopureMixtureliquidProperties>
+        (
+             IOobject::groupName(basicThermo::dictName, phaseName_)
+        );
+
+    const Foam::liquidProperties& liquid = thermo.mixture().properties();
+
+    tmp<volScalarField> tsigma
+    (
+        new volScalarField
+        (
+            IOobject
+            (
+                "sigma",
+                mesh_.time().timeName(),
+                mesh_,
+                IOobject::NO_READ,
+                IOobject::NO_WRITE,
+                false
+            ),
+            mesh_,
+            dimSigma
+        )
+    );
+    volScalarField& sigma = tsigma.ref();
+
+    const volScalarField& T = thermo.T();
+    const volScalarField& p = thermo.p();
+
+    volScalarField::Internal& sigmai = sigma;
+    const volScalarField::Internal& pi = p;
+    const volScalarField::Internal& Ti = T;
+
+    forAll(sigmai, celli)
+    {
+        sigmai[celli] = liquid.sigma(pi[celli], Ti[celli]);
+    }
+
+    volScalarField::Boundary& sigmaBf = sigma.boundaryFieldRef();
+    const volScalarField::Boundary& pBf = p.boundaryField();
+    const volScalarField::Boundary& TBf = T.boundaryField();
+
+    forAll(sigmaBf, patchi)
+    {
+        scalarField& sigmaPf = sigmaBf[patchi];
+        const scalarField& pPf = pBf[patchi];
+        const scalarField& TPf = TBf[patchi];
+
+        forAll(sigmaPf, facei)
+        {
+            sigmaPf[facei] = liquid.sigma(pPf[facei], TPf[facei]);
+        }
+    }
+
+    return tsigma;
+}
+
+
+bool Foam::surfaceTensionModels::liquidProperties::readDict
+(
+    const dictionary& dict
+)
+{
+    return true;
+}
+
+
+bool Foam::surfaceTensionModels::liquidProperties::writeData
+(
+    Ostream& os
+) const
+{
+    if (surfaceTensionModel::writeData(os))
+    {
+        return os.good();
+    }
+
+    return false;
+}
+
+
+// ************************************************************************* //

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/surfaceTensionModels/liquidProperties/liquidPropertiesSurfaceTension.H

+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2017 OpenFOAM Foundation
+-------------------------------------------------------------------------------
+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/>.
+
+Class
+    Foam::surfaceTensionModels::liquidProperties
+
+Description
+    Temperature-dependent surface tension model in which the surface tension
+    function provided by the phase Foam::liquidProperties class is used.
+
+Usage
+    \table
+        Property     | Description               | Required    | Default value
+        phase        | Phase name                | yes         |
+    \endtable
+
+    Example of the surface tension specification:
+    \verbatim
+        sigma
+        {
+            type    liquidProperties;
+            phase   water;
+        }
+    \endverbatim
+
+See also
+    Foam::surfaceTensionModel
+
+SourceFiles
+    liquidPropertiesSurfaceTension.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef liquidPropertiesSurfaceTension_H
+#define liquidPropertiesSurfaceTension_H
+
+#include "surfaceTensionModel.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+namespace surfaceTensionModels
+{
+
+/*---------------------------------------------------------------------------*\
+                           Class liquidProperties Declaration
+\*---------------------------------------------------------------------------*/
+
+class liquidProperties
+:
+    public surfaceTensionModel
+{
+    // Private data
+
+        //- Name of the liquid phase
+        word phaseName_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("liquidProperties");
+
+
+    // Constructors
+
+        //- Construct from dictionary and mesh
+        liquidProperties
+        (
+            const dictionary& dict,
+            const fvMesh& mesh
+        );
+
+
+    //- Destructor
+    virtual ~liquidProperties() = default;
+
+
+    // Member Functions
+
+        //- Surface tension coefficient
+        virtual tmp<volScalarField> sigma() const;
+
+        //- Update surface tension coefficient from given dictionary
+        virtual bool readDict(const dictionary& dict);
+
+        //- Write in dictionary format
+        virtual bool writeData(Ostream& os) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace surfaceTensionModels
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/twoPhaseMixtureThermo/Make/files

+twoPhaseMixtureThermo.C
+
+LIB = $(FOAM_LIBBIN)/libtwoPhaseMixtureThermo

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/twoPhaseMixtureThermo/Make/options

+EXE_INC = \
+    -I$(LIB_SRC)/transportModels/compressible/lnInclude \
+    -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
+    -I$(LIB_SRC)/transportModels/twoPhaseMixture/lnInclude \
+    -I$(LIB_SRC)/transportModels/interfaceProperties/lnInclude \
+    -I$(LIB_SRC)/finiteVolume/lnInclude
+
+LIB_LIBS = \
+    -lcompressibleTransportModels \
+    -lfluidThermophysicalModels \
+    -lspecie \
+    -ltwoPhaseMixture \
+    -linterfaceProperties \
+    -lfiniteVolume

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/twoPhaseMixtureThermo/twoPhaseMixtureThermo.C

+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2013-2017 OpenFOAM Foundation
+    Copyright (C) 2019 OpenCFD Ltd.
+-------------------------------------------------------------------------------
+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/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "twoPhaseMixtureThermo.H"
+#include "gradientEnergyFvPatchScalarField.H"
+#include "mixedEnergyFvPatchScalarField.H"
+#include "collatedFileOperation.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(twoPhaseMixtureThermo, 0);
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::twoPhaseMixtureThermo::twoPhaseMixtureThermo
+(
+    const volVectorField& U,
+    const surfaceScalarField& phi
+)
+:
+    psiThermo(U.mesh(), word::null),
+    twoPhaseMixture(U.mesh(), *this),
+    interfaceProperties(alpha1(), U, *this),
+    thermo1_(nullptr),
+    thermo2_(nullptr)
+{
+    {
+        volScalarField T1(IOobject::groupName("T", phase1Name()), T_);
+        T1.write();
+    }
+
+    {
+        volScalarField T2(IOobject::groupName("T", phase2Name()), T_);
+        T2.write();
+    }
+
+    // Note: we're writing files to be read in immediately afterwards.
+    //       Avoid any thread-writing problems.
+    fileHandler().flush();
+
+    thermo1_ = rhoThermo::New(U.mesh(), phase1Name());
+    thermo2_ = rhoThermo::New(U.mesh(), phase2Name());
+
+    // thermo1_->validate(phase1Name(), "e");
+    // thermo2_->validate(phase2Name(), "e");
+
+    correct();
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::twoPhaseMixtureThermo::~twoPhaseMixtureThermo()
+{}
+
+
+// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
+
+void Foam::twoPhaseMixtureThermo::correctThermo()
+{
+    thermo1_->he() = thermo1_->he(p_, T_);
+    thermo1_->correct();
+
+    thermo2_->he() = thermo2_->he(p_, T_);
+    thermo2_->correct();
+}
+
+
+void Foam::twoPhaseMixtureThermo::correct()
+{
+    psi_ = alpha1()*thermo1_->psi() + alpha2()*thermo2_->psi();
+    mu_ = alpha1()*thermo1_->mu() + alpha2()*thermo2_->mu();
+    alpha_ = alpha1()*thermo1_->alpha() + alpha2()*thermo2_->alpha();
+
+    interfaceProperties::correct();
+}
+
+
+Foam::word Foam::twoPhaseMixtureThermo::thermoName() const
+{
+    return thermo1_->thermoName() + ',' + thermo2_->thermoName();
+}
+
+
+bool Foam::twoPhaseMixtureThermo::incompressible() const
+{
+    return thermo1_->incompressible() && thermo2_->incompressible();
+}
+
+
+bool Foam::twoPhaseMixtureThermo::isochoric() const
+{
+    return thermo1_->isochoric() && thermo2_->isochoric();
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::he
+(
+    const volScalarField& p,
+    const volScalarField& T
+) const
+{
+    return alpha1()*thermo1_->he(p, T) + alpha2()*thermo2_->he(p, T);
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::he
+(
+    const scalarField& p,
+    const scalarField& T,
+    const labelList& cells
+) const
+{
+    return
+        scalarField(alpha1(), cells)*thermo1_->he(p, T, cells)
+      + scalarField(alpha2(), cells)*thermo2_->he(p, T, cells);
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::he
+(
+    const scalarField& p,
+    const scalarField& T,
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->he(p, T, patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->he(p, T, patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::hc() const
+{
+    return alpha1()*thermo1_->hc() + alpha2()*thermo2_->hc();
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::THE
+(
+    const scalarField& h,
+    const scalarField& p,
+    const scalarField& T0,
+    const labelList& cells
+) const
+{
+    NotImplemented;
+    return T0;
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::THE
+(
+    const scalarField& h,
+    const scalarField& p,
+    const scalarField& T0,
+    const label patchi
+) const
+{
+    NotImplemented;
+    return T0;
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::Cp() const
+{
+    return alpha1()*thermo1_->Cp() + alpha2()*thermo2_->Cp();
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::Cp
+(
+    const scalarField& p,
+    const scalarField& T,
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->Cp(p, T, patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->Cp(p, T, patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::Cv() const
+{
+    return alpha1()*thermo1_->Cv() + alpha2()*thermo2_->Cv();
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::Cv
+(
+    const scalarField& p,
+    const scalarField& T,
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->Cv(p, T, patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->Cv(p, T, patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::gamma() const
+{
+    return alpha1()*thermo1_->gamma() + alpha2()*thermo2_->gamma();
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::gamma
+(
+    const scalarField& p,
+    const scalarField& T,
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->gamma(p, T, patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->gamma(p, T, patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::Cpv() const
+{
+    return alpha1()*thermo1_->Cpv() + alpha2()*thermo2_->Cpv();
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::Cpv
+(
+    const scalarField& p,
+    const scalarField& T,
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->Cpv(p, T, patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->Cpv(p, T, patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::CpByCpv() const
+{
+    return
+        alpha1()*thermo1_->CpByCpv()
+      + alpha2()*thermo2_->CpByCpv();
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::CpByCpv
+(
+    const scalarField& p,
+    const scalarField& T,
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->CpByCpv(p, T, patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->CpByCpv(p, T, patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::W() const
+{
+    return alpha1()*thermo1_->W() + alpha2()*thermo1_->W();
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::nu() const
+{
+    return mu()/(alpha1()*thermo1_->rho() + alpha2()*thermo2_->rho());
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::nu
+(
+    const label patchi
+) const
+{
+    return
+        mu(patchi)
+       /(
+            alpha1().boundaryField()[patchi]*thermo1_->rho(patchi)
+          + alpha2().boundaryField()[patchi]*thermo2_->rho(patchi)
+        );
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::kappa() const
+{
+    return alpha1()*thermo1_->kappa() + alpha2()*thermo2_->kappa();
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::kappa
+(
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->kappa(patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->kappa(patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::alphahe() const
+{
+    return
+        alpha1()*thermo1_->alphahe()
+      + alpha2()*thermo2_->alphahe();
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::alphahe
+(
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->alphahe(patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->alphahe(patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::kappaEff
+(
+    const volScalarField& alphat
+) const
+{
+    return
+        alpha1()*thermo1_->kappaEff(alphat)
+      + alpha2()*thermo2_->kappaEff(alphat);
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::kappaEff
+(
+    const scalarField& alphat,
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->kappaEff(alphat, patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->kappaEff(alphat, patchi);
+}
+
+
+Foam::tmp<Foam::volScalarField> Foam::twoPhaseMixtureThermo::alphaEff
+(
+    const volScalarField& alphat
+) const
+{
+    return
+        alpha1()*thermo1_->alphaEff(alphat)
+      + alpha2()*thermo2_->alphaEff(alphat);
+}
+
+
+Foam::tmp<Foam::scalarField> Foam::twoPhaseMixtureThermo::alphaEff
+(
+    const scalarField& alphat,
+    const label patchi
+) const
+{
+    return
+        alpha1().boundaryField()[patchi]*thermo1_->alphaEff(alphat, patchi)
+      + alpha2().boundaryField()[patchi]*thermo2_->alphaEff(alphat, patchi);
+}
+
+
+bool Foam::twoPhaseMixtureThermo::read()
+{
+    if (psiThermo::read())
+    {
+        return interfaceProperties::read();
+    }
+
+    return false;
+}
+
+
+// ************************************************************************* //

OpenFOAM-v2112/applications/solvers/multiphase/compressibleInterFoam/twoPhaseMixtureThermo/twoPhaseMixtureThermo.H

+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2013-2017 OpenFOAM Foundation
+    Copyright (C) 2021 OpenCFD Ltd.
+-------------------------------------------------------------------------------
+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/>.
+
+Class
+    Foam::twoPhaseMixtureThermo
+
+Description
+
+SourceFiles
+    twoPhaseMixtureThermoI.H
+    twoPhaseMixtureThermo.C
+    twoPhaseMixtureThermoIO.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef twoPhaseMixtureThermo_H
+#define twoPhaseMixtureThermo_H
+
+#include "rhoThermo.H"
+#include "psiThermo.H"
+#include "twoPhaseMixture.H"
+#include "interfaceProperties.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                         Class twoPhaseMixtureThermo Declaration
+\*---------------------------------------------------------------------------*/
+
+class twoPhaseMixtureThermo
+:
+    public psiThermo,
+    public twoPhaseMixture,
+    public interfaceProperties
+{
+    // Private data
+
+        //- Thermo-package of phase 1
+        autoPtr<rhoThermo> thermo1_;
+
+        //- Thermo-package of phase 2
+        autoPtr<rhoThermo> thermo2_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("twoPhaseMixtureThermo");
+
+
+    // Constructors
+
+        //- Construct from components
+        twoPhaseMixtureThermo
+        (
+            const volVectorField& U,
+            const surfaceScalarField& phi
+        );
+
+
+    //- Destructor
+    virtual ~twoPhaseMixtureThermo();
+
+
+    // Member Functions
+
+        const rhoThermo& thermo1() const
+        {
+            return *thermo1_;
+        }
+
+        const rhoThermo& thermo2() const
+        {
+            return *thermo2_;
+        }
+
+        rhoThermo& thermo1()
+        {
+            return *thermo1_;
+        }
+
+        rhoThermo& thermo2()
+        {
+            return *thermo2_;
+        }
+
+        //- Correct the thermodynamics of each phase
+        virtual void correctThermo();
+
+        //- Update mixture properties
+        virtual void correct();
+
+        //- Return the name of the thermo physics
+        virtual word thermoName() const;
+
+        //- Return true if the equation of state is incompressible
+        //  i.e. rho != f(p)
+        virtual bool incompressible() const;
+
+        //- Return true if the equation of state is isochoric
+        //  i.e. rho = const
+        virtual bool isochoric() const;
+
+
+        // Access to thermodynamic state variables
+
+            //- Enthalpy/Internal energy [J/kg]
+            //  Non-const access allowed for transport equations
+            virtual volScalarField& he()
+            {
+                NotImplemented;
+                return thermo1_->he();
+            }
+
+            //- Enthalpy/Internal energy [J/kg]
+            virtual const volScalarField& he() const
+            {
+                NotImplemented;
+                return thermo1_->he();
+            }
+
+            //- Enthalpy/Internal energy
+            //  for given pressure and temperature [J/kg]
+            virtual tmp<volScalarField> he
+            (
+                const volScalarField& p,
+                const volScalarField& T
+            ) const;
+
+            //- Enthalpy/Internal energy for cell-set [J/kg]
+            virtual tmp<scalarField> he
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const labelList& cells
+            ) const;
+
+            //- Enthalpy/Internal energy for patch [J/kg]
+            virtual tmp<scalarField> he
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const label patchi
+            ) const;
+
+            //- Chemical enthalpy [J/kg]
+            virtual tmp<volScalarField> hc() const;
+
+            //- Temperature from enthalpy/internal energy for cell-set
+            virtual tmp<scalarField> THE
+            (
+                const scalarField& h,
+                const scalarField& p,
+                const scalarField& T0,      // starting temperature
+                const labelList& cells
+            ) const;
+
+            //- Temperature from enthalpy/internal energy for patch
+            virtual tmp<scalarField> THE
+            (
+                const scalarField& h,
+                const scalarField& p,
+                const scalarField& T0,      // starting temperature
+                const label patchi
+            ) const;
+
+
+        // Fields derived from thermodynamic state variables
+
+            //- Heat capacity at constant pressure [J/kg/K]
+            virtual tmp<volScalarField> Cp() const;
+
+            //- Heat capacity at constant pressure for patch [J/kg/K]
+            virtual tmp<scalarField> Cp
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const label patchi
+            ) const;
+
+            //- Heat capacity using pressure and temperature
+            virtual tmp<scalarField> Cp
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const labelList& cells
+            ) const
+            {
+                NotImplemented;
+                return tmp<scalarField>::New(p);
+            }
+
+            //- Heat capacity at constant volume [J/kg/K]
+            virtual tmp<volScalarField> Cv() const;
+
+            //- Heat capacity at constant volume for patch [J/kg/K]
+            virtual tmp<scalarField> Cv
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const label patchi
+            ) const;
+
+            //- Density from pressure and temperature
+            virtual tmp<scalarField> rhoEoS
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const labelList& cells
+            ) const
+            {
+                NotImplemented;
+                return tmp<scalarField>::New(p);
+            }
+
+            //- Gamma = Cp/Cv []
+            virtual tmp<volScalarField> gamma() const;
+
+            //- Gamma = Cp/Cv for patch []
+            virtual tmp<scalarField> gamma
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const label patchi
+            ) const;
+
+            //- Heat capacity at constant pressure/volume [J/kg/K]
+            virtual tmp<volScalarField> Cpv() const;
+
+            //- Heat capacity at constant pressure/volume for patch [J/kg/K]
+            virtual tmp<scalarField> Cpv
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const label patchi
+            ) const;
+
+            //- Heat capacity ratio []
+            virtual tmp<volScalarField> CpByCpv() const;
+
+            //- Heat capacity ratio for patch []
+            virtual tmp<scalarField> CpByCpv
+            (
+                const scalarField& p,
+                const scalarField& T,
+                const label patchi
+            ) const;
+
+            //- Molecular weight [kg/kmol]
+            virtual tmp<volScalarField> W() const;
+
+
+        // Fields derived from transport state variables
+
+            //- Kinematic viscosity of mixture [m^2/s]
+            virtual tmp<volScalarField> nu() const;
+
+            //- Kinematic viscosity of mixture for patch [m^2/s]
+            virtual tmp<scalarField> nu(const label patchi) const;
+
+            //- Thermal diffusivity for temperature of mixture [J/m/s/K]
+            virtual tmp<volScalarField> kappa() const;
+
+            //- Thermal diffusivity of mixture for patch [J/m/s/K]
+            virtual tmp<scalarField> kappa
+            (
+                const label patchi
+            ) const;
+
+
+            //- Thermal diffusivity for energy of mixture [kg/m/s]
+            virtual tmp<volScalarField> alphahe() const;
+
+            //- Thermal diffusivity for energy of mixture for patch [kg/m/s]
+            virtual tmp<scalarField> alphahe(const label patchi) const;
+
+            //- Effective thermal diffusivity of mixture [J/m/s/K]
+            virtual tmp<volScalarField> kappaEff
+            (
+                const volScalarField& alphat
+            ) const;
+
+            //- Effective thermal diffusivity of mixture for patch [J/m/s/K]
+            virtual tmp<scalarField> kappaEff
+            (
+                const scalarField& alphat,
+                const label patchi
+            ) const;
+
+            //- Effective thermal diffusivity of mixture [J/m/s/K]
+            virtual tmp<volScalarField> alphaEff
+            (
+                const volScalarField& alphat
+            ) const;
+
+            //- Effective thermal diffusivity of mixture for patch [J/m/s/K]
+            virtual tmp<scalarField> alphaEff
+            (
+                const scalarField& alphat,
+                const label patchi
+            ) const;
+
+
+    // IO
+
+        //- Read base transportProperties dictionary
+        virtual bool read();
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

OpenFOAM-v2112/applications/solvers/multiphase/compressibleMultiphaseInterFoam/Allwclean

+#!/bin/sh
+cd "${0%/*}" || exit    # Run from this directory
+#------------------------------------------------------------------------------
+
+wclean libso multiphaseMixtureThermo
+wclean
+
+#------------------------------------------------------------------------------

OpenFOAM-v2112/applications/solvers/multiphase/compressibleMultiphaseInterFoam/Allwmake

+#!/bin/sh
+cd "${0%/*}" || exit                                # Run from this directory
+. ${WM_PROJECT_DIR:?}/wmake/scripts/AllwmakeParseArguments
+#------------------------------------------------------------------------------
+
+wmake $targetType multiphaseMixtureThermo
+wmake $targetType
+
+#------------------------------------------------------------------------------

OpenFOAM-v2112/applications/solvers/multiphase/compressibleMultiphaseInterFoam/Make/files

+compressibleMultiphaseInterFoam.C
+
+EXE = $(FOAM_APPBIN)/compressibleMultiphaseInterFoam