Gulder.C

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#include "Gulder.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace XiEqModels
{
    defineTypeNameAndDebug(Gulder, 0);
    addToRunTimeSelectionTable(XiEqModel, Gulder, dictionary);
}
}
 
 
// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
bool Foam::XiEqModels::Gulder::readCoeffs(const dictionary& dict)
{
    XiEqModel::readCoeffs(dict);
 
    XiEqCoeff_.readIfPresent(dict);
    SuMin_.readIfPresent(dict);
 
    return true;
}
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::XiEqModels::Gulder::Gulder
(
    const dictionary& dict,
    const ubRhoThermo& thermo,
    const compressibleMomentumTransportModel& turbulence,
    const volScalarField& Su
)
:
    XiEqModel(thermo, turbulence, Su),
    XiEqCoeff_("XiEqCoeff", dimless, 0.62),
    SuMin_("SuMin", 0.01*Su.average())
{
    readCoeffs(dict);
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::XiEqModels::Gulder::~Gulder()
{}
 
 
// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField> Foam::XiEqModels::Gulder::XiEq() const
{
    const volScalarField up(sqrt((2.0/3.0)*momentumTransport_.k()));
 
    const volScalarField epsilon
    (
        max
        (
            momentumTransport_.epsilon(),
            dimensionedScalar(sqr(dimVelocity)/dimTime, small)
        )
    );
 
    const volScalarField tauEta
    (
        sqrt(mag(thermo_.uThermo().mu()/(thermo_.uThermo().rho()*epsilon)))
    );
 
    const volScalarField Reta(up/sqrt(epsilon*tauEta));
 
    return (1 + XiEqCoeff_*sqrt(up/max(Su_, SuMin_))*Reta);
}
 
 
// ************************************************************************* //