alphaSuSp.C

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#include "compressibleVoF.H"
#include "fvcDiv.H"
 
// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
void Foam::solvers::compressibleVoF::alphaSuSp
(
    tmp<volScalarField::Internal>& tSu,
    tmp<volScalarField::Internal>& tSp,
    const dictionary& alphaControls
)
{
    const scalar vDotResidualAlpha
    (
        alphaControls.lookupOrDefault("vDotResidualAlpha", 1e-4)
    );
 
    const dimensionedScalar Szero(vDot.dimensions(), 0);
 
    tSp = volScalarField::Internal::New("Sp", mesh, Szero);
    tSu = volScalarField::Internal::New("Su", mesh, Szero);
 
    volScalarField::Internal& Sp = tSp.ref();
    volScalarField::Internal& Su = tSu.ref();
 
    if (fvModels().addsSupToField(mixture.rho1().name()))
    {
        const volScalarField::Internal alpha2ByRho1(alpha2()/mixture.rho1()());
        const fvScalarMatrix alphaRho1Sup
        (
            fvModels().sourceProxy(alpha1, mixture.rho1(), alpha1)
        );
 
        Su += alpha2ByRho1*alphaRho1Sup.Su();
        Sp += alpha2ByRho1*alphaRho1Sup.Sp();
    }
 
    if (fvModels().addsSupToField(mixture.rho2().name()))
    {
        const volScalarField::Internal alpha1ByRho2(alpha1()/mixture.rho2()());
        const fvScalarMatrix alphaRho2Sup
        (
            fvModels().sourceProxy(alpha2, mixture.rho2(), alpha2)
        );
 
        Su -= alpha1ByRho2*(alphaRho2Sup.Su() + alphaRho2Sup.Sp());
        Sp += alpha1ByRho2*alphaRho2Sup.Sp();
    }
 
    forAll(vDot, celli)
    {
        if (vDot[celli] > 0.0)
        {
            Sp[celli] -=
                vDot[celli]/max(1.0 - alpha1[celli], vDotResidualAlpha);
            Su[celli] +=
                vDot[celli]/max(1.0 - alpha1[celli], vDotResidualAlpha);
        }
        else if (vDot[celli] < 0.0)
        {
            Sp[celli] += vDot[celli]/max(alpha1[celli], vDotResidualAlpha);
        }
    }
}
 
 
// ************************************************************************* //