/*---------------------------------------------------------------------------*\
  ==  == ====== ====   ====    |
                    \\     ||  | Multiphase Code Repository by HZDR
  ======   //   ||  || ===//   | Website: https://doi.org/10.14278/rodare.767
  ||  ||  //    ||  // || \\   | License: GPL-3.0-or-later
  ==  == ====== ====   ==  ==  |
-------------------------------------------------------------------------------
License
    This file is part of the Multiphase Code Repository by HZDR.

    Copyright (C) 2025 by Helmholtz-Zentrum Dresden-Rossendorf e.V. (HZDR),
    Website: https://hzdr.de

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    computational fluid dynamics (CFD) from the OpenFOAM Foundation.
    Copyright (C) 2025 by OpenFOAM Foundation, Website: https://openfoam.org

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#include "ShiRzehakDrag.H"
#include "phaseCompressibleMomentumTransportModel.H"
#include "dispersedVirtualMassModel.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace dragModels
{
    defineTypeNameAndDebug(ShiRzehakDrag, 0);
    addToRunTimeSelectionTable(dragModel, ShiRzehakDrag, dictionary);
}
}


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

Foam::dragModels::ShiRzehakDrag::ShiRzehakDrag
(
    const dictionary& dict,
    const phaseInterface& interface,
    const bool registerObject
)
:
    dispersedDragModel(dict, interface, registerObject),
    dragModel_(dragModel::New(dict.subDict("drag"), interface, false)),
    CLambda_("CLambda", dimless, dict, 0.234),
    CT_("CT", dimless, dict, 0.224)
{
    if (!isA<dispersedDragModel>(dragModel_()))
    {
        FatalIOErrorInFunction(dict)
            << "The sub-drag-model of a " << type()
            << " drag model must be for a dispersed configuration"
            << exit(FatalIOError);
    }
}


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

Foam::dragModels::ShiRzehakDrag::~ShiRzehakDrag()
{}


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

Foam::tmp<Foam::volScalarField>
Foam::dragModels::ShiRzehakDrag::CdRe() const
{
    const virtualMassModels::dispersedVirtualMassModel& virtualMass =
        refCast<const virtualMassModels::dispersedVirtualMassModel>
        (
            interface_.mesh().lookupObject<virtualMassModel>
            (
                IOobject::groupName
                (
                    virtualMassModel::typeName,
                    interface_.name()
                )
            )
        );

    const phaseCompressible::momentumTransportModel& turbulence =
        interface_.mesh().lookupObject
        <
            phaseCompressible::momentumTransportModel
        >
        (
            IOobject::groupName
            (
                momentumTransportModel::typeName,
                interface_.continuous().name()
            )
        );

    const volScalarField& rhos = interface_.dispersed().rho();
    const volScalarField& rhol = interface_.continuous().rho();

    const volScalarField CdRe
    (
        refCast<const dispersedDragModel>(dragModel_()).CdRe()
    );

    const volScalarField TSL
    (
        1
       /sqrt
        (
            sqr(turbulence.epsilon()/(CT_*turbulence.k()))
          + sqr
            (
                interface_.magUr()*turbulence.epsilon()
               /(CLambda_*sqrt(pow3(turbulence.k())))
            )
        )
    );

    const volScalarField tauS
    (
        (rhos + virtualMass.Cvm()*rhol)*4*sqr(interface_.dispersed().d())
       /(3*CdRe*interface_.continuous().fluidThermo().mu())
    );

    return sqr(1/(1 - 2.23*pow(tauS/TSL, 1.4)*exp(-tauS/TSL)))*CdRe;
}


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