VoFTurbulenceDamping.C

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License
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#include "VoFTurbulenceDamping.H"
#include "compressibleTwoPhaseVoFMixture.H"
#include "compressibleMomentumTransportModel.H"
#include "fvMatrix.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
 
namespace Foam
{
    namespace fv
    {
        namespace compressible
        {
            defineTypeNameAndDebug(VoFTurbulenceDamping, 0);
 
            addToRunTimeSelectionTable
            (
                fvModel,
                VoFTurbulenceDamping,
                dictionary
            );
        }
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::fv::compressible::VoFTurbulenceDamping::VoFTurbulenceDamping
(
    const word& sourceName,
    const word& modelType,
    const fvMesh& mesh,
    const dictionary& dict
)
:
    fvModel(sourceName, modelType, mesh, dict),
    phaseName_(dict.lookupOrDefault("phase", word::null)),
    delta_("delta", dimLength, dict),
    mixture_
    (
        mesh.lookupObject<compressibleTwoPhaseVoFMixture>
        (
            "phaseProperties"
        )
    ),
    momentumTransport_
    (
        mesh.lookupType<compressibleMomentumTransportModel>(phaseName_)
    ),
    C2_("C2", dimless, 0),
    betaStar_("betaStar", dimless, 0),
    beta_("beta", dimless, 0)
{
    const word epsilonName(IOobject::groupName("epsilon", phaseName_));
    const word omegaName(IOobject::groupName("omega", phaseName_));
 
    if (mesh.foundObject<volScalarField>(epsilonName))
    {
        fieldName_ = epsilonName;
        C2_.read(momentumTransport_.coeffDict());
    }
    else if (mesh.foundObject<volScalarField>(omegaName))
    {
        fieldName_ = omegaName;
        betaStar_.read(momentumTransport_.coeffDict());
 
        // Read beta for k-omega models or beta1 for k-omega SST
        if (momentumTransport_.coeffDict().found("beta"))
        {
            beta_.read(momentumTransport_.coeffDict());
        }
        else
        {
            beta_ = dimensionedScalar
            (
                "beta1",
                dimless,
                momentumTransport_.coeffDict()
            );
        }
    }
    else
    {
        FatalIOErrorInFunction(dict)
            << "Cannot find either " << epsilonName << " or " << omegaName
            << " field for fvModel " << typeName << exit(FatalIOError);
    }
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::wordList
Foam::fv::compressible::VoFTurbulenceDamping::addSupFields() const
{
    return wordList(1, fieldName_);
}
 
 
void Foam::fv::compressible::VoFTurbulenceDamping::addSup
(
    const volScalarField& rho,
    fvMatrix<scalar>& eqn,
    const word& fieldName
) const
{
    if (debug)
    {
        Info<< type() << ": applying source to " << eqn.psi().name() << endl;
    }
 
    const volScalarField::Internal aRhoSqrnu
    (
        mixture_.alpha1()()*mixture_.rho1()()*sqr(mixture_.thermo1().nu()()())
      + mixture_.alpha2()()*mixture_.rho2()()*sqr(mixture_.thermo2().nu()()())
    );
 
    if (fieldName == "epsilon")
    {
        eqn += mixture_.interfaceFraction()
           *C2_*aRhoSqrnu*momentumTransport_.k()()/pow4(delta_);
    }
    else if (fieldName == "omega")
    {
        eqn += mixture_.interfaceFraction()
           *beta_*aRhoSqrnu/(sqr(betaStar_)*pow4(delta_));
    }
    else
    {
        FatalErrorInFunction
            << "Support for field " << fieldName << " is not implemented"
            << exit(FatalError);
    }
}
 
 
void Foam::fv::compressible::VoFTurbulenceDamping::addSup
(
    const volScalarField& alpha,
    const volScalarField&,
    fvMatrix<scalar>& eqn,
    const word& fieldName
) const
{
    if (debug)
    {
        Info<< type() << ": applying source to " << eqn.psi().name() << endl;
    }
 
    tmp<volScalarField::Internal> taRhoSqrnu;
 
    if (mixture_.alpha1().name() == alpha.name())
    {
        taRhoSqrnu = mixture_.alpha1()()*mixture_.rho1()()
           *sqr(mixture_.thermo1().nu()()());
    }
    else if (mixture_.alpha2().name() == alpha.name())
    {
        taRhoSqrnu = mixture_.alpha2()()*mixture_.rho2()()
           *sqr(mixture_.thermo2().nu()()());
    }
    else
    {
        FatalErrorInFunction
            << "Unknown phase-fraction " << alpha.name()
            << exit(FatalError);
    }
 
    if (fieldName == IOobject::groupName("epsilon", phaseName_))
    {
        eqn += mixture_.interfaceFraction()
           *C2_*taRhoSqrnu*momentumTransport_.k()()/pow4(delta_);
    }
    else if (fieldName == IOobject::groupName("omega", phaseName_))
    {
        eqn += mixture_.interfaceFraction()
           *beta_*taRhoSqrnu/(sqr(betaStar_)*pow4(delta_));
    }
    else
    {
        FatalErrorInFunction
            << "Support for field " << fieldName << " is not implemented"
            << exit(FatalError);
    }
}
 
 
void Foam::fv::compressible::VoFTurbulenceDamping::topoChange
(
    const polyTopoChangeMap&
)
{}
 
 
void Foam::fv::compressible::VoFTurbulenceDamping::mapMesh
(
    const polyMeshMap& map
)
{}
 
 
void Foam::fv::compressible::VoFTurbulenceDamping::distribute
(
    const polyDistributionMap&
)
{}
 
 
bool Foam::fv::compressible::VoFTurbulenceDamping::movePoints()
{
    return true;
}
 
 
// ************************************************************************* //