compressibleInterFoam.C

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License
    This file is part of OpenFOAM.

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    the Free Software Foundation, either version 3 of the License, or
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Application
    compressibleInterFoam

Description
    Solver for 2 compressible, non-isothermal immiscible fluids using a VOF
    (volume of fluid) phase-fraction based interface capturing approach,
    with optional mesh motion and mesh topology changes including adaptive
    re-meshing.

    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 "interfaceCompression.H"
#include "CMULES.H"
#include "EulerDdtScheme.H"
#include "localEulerDdtScheme.H"
#include "CrankNicolsonDdtScheme.H"
#include "subCycle.H"
#include "compressibleInterPhaseTransportModel.H"
#include "noPhaseChange.H"
#include "pimpleControl.H"
#include "pressureReference.H"
#include "fvModels.H"
#include "fvConstraints.H"
#include "CorrectPhi.H"
#include "fvcSmooth.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

int main(int argc, char *argv[])
{
    #include "postProcess.H"

    #include "setRootCaseLists.H"
    #include "createTime.H"
    #include "createMesh.H"
    #include "initContinuityErrs.H"
    #include "createDyMControls.H"
    #include "createFields.H"
    #include "createFieldRefs.H"
    #include "CourantNo.H"
    #include "setInitialDeltaT.H"
    #include "createUfIfPresent.H"

    // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
    Info<< "\nStarting time loop\n" << endl;

    while (pimple.run(runTime))
    {
        #include "readDyMControls.H"

        if (LTS)
        {
            #include "setRDeltaT.H"
        }
        else
        {
            #include "CourantNo.H"
            #include "alphaCourantNo.H"
            #include "setDeltaT.H"
        }

        fvModels.preUpdateMesh();

        // Store divU from the previous mesh so that it can be mapped
        // and used in correctPhi to ensure the corrected phi has the
        // same divergence
        tmp<volScalarField> divU;

        if (correctPhi && mesh.topoChanged())
        {
            // Construct and register divU for mapping
            divU = new volScalarField
            (
                "divU0",
                fvc::div(fvc::absolute(phi, U))
            );
        }

        // Update the mesh for topology change, mesh to mesh mapping
        mesh.update();

        runTime++;

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

        // --- Pressure-velocity PIMPLE corrector loop
        while (pimple.loop())
        {
            if (pimple.firstPimpleIter() || moveMeshOuterCorrectors)
            {
                if (correctPhi && !divU.valid())
                {
                    // Construct and register divU for correctPhi
                    divU = new volScalarField
                    (
                        "divU0",
                        fvc::div(fvc::absolute(phi, U))
                    );
                }

                // Move the mesh
                mesh.move();

                if (mesh.changing())
                {
                    gh = (g & mesh.C()) - ghRef;
                    ghf = (g & mesh.Cf()) - ghRef;

                    MRF.update();

                    if (correctPhi)
                    {
                        #include "correctPhi.H"
                    }

                    mixture.correct();

                    if (checkMeshCourantNo)
                    {
                        #include "meshCourantNo.H"
                    }
                }

                divU.clear();
            }

            fvModels.correct();

            #include "alphaControls.H"
            #include "compressibleAlphaEqnSubCycle.H"

            turbulence.correctPhasePhi();

            #include "UEqn.H"
            #include "TEqn.H"

            // --- Pressure corrector loop
            while (pimple.correct())
            {
                #include "pEqn.H"
            }

            if (pimple.turbCorr())
            {
                turbulence.correct();
            }
        }

        runTime.write();

        Info<< "ExecutionTime = "
            << runTime.elapsedCpuTime()
            << " s\n\n" << endl;
    }

    Info<< "End\n" << endl;

    return 0;
}


// ************************************************************************* //