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  ==  == ====== ====   ====    |
                    \\     ||  | Multiphase Code Repository by HZDR
  ======   //   ||  || ===//   | Website: https://doi.org/10.14278/rodare.767
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License
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    Website: https://hzdr.de

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#include "inducedTurbulenceModel.H"
#include "fvmSup.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

namespace Foam
{
namespace fv
{
    defineTypeNameAndDebug(inducedTurbulenceModel, 0);
    defineRunTimeSelectionTable(inducedTurbulenceModel, dictionary);
}
}


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::fv::inducedTurbulenceModel::inducedTurbulenceModel
(
    const dictionary& dict,
    const dispersedPhaseInterface& interface
)
:
    interface_(interface),
    dispersedDragModel_
    (
        interface.fluid().lookupInterfacialModel<dragModels::dispersedDragModel>
        (
            interface_
        )
    ),
    turbulence_
    (
        interface_.mesh().lookupObject
        <
            phaseCompressible::momentumTransportModel
        >
        (
            IOobject::groupName
            (
                momentumTransportModel::typeName,
                interface_.continuous().name()
            )
        )
    ),
    dict_(dict)
{}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::fv::inducedTurbulenceModel::~inducedTurbulenceModel()
{}


// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //

Foam::tmp<Foam::volScalarField>
Foam::fv::inducedTurbulenceModel::kSource() const
{
    return Ck()*dispersedDragModel_.K()*magSqr(interface_.Ur());
}


Foam::tmp<Foam::volScalarField>
Foam::fv::inducedTurbulenceModel::epsilonSource() const
{
    return Ceps()*kSource();
}


Foam::tmp<Foam::fvScalarMatrix>
Foam::fv::inducedTurbulenceModel::omegaSource(fvScalarMatrix& eqn) const
{
    const tmp<volScalarField> k = turbulence_.k();

    if (betaStar_.empty())
    {
        betaStar_.set(new dimensionedScalar("betaStar", dimless, dict_));
    }

    return tmp<fvScalarMatrix>
    (
        new fvScalarMatrix
        (
            epsilonSource()/(betaStar_*k) - fvm::Sp(kSource()/k, eqn.psi())
        )
    );
}


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