/*---------------------------------------------------------------------------*\
  ==  == ====== ====   ====    |
                    \\     ||  | 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.
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#include "attachmentModel.H"

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

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


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

Foam::volScalarField&
Foam::fv::attachmentModel::attachmentRatio
(
    const volScalarField& dB,
    const volScalarField& dP,
    const volScalarField& Yc,
    const volScalarField& Yi,
    const volScalarField& rhoC,
    const volScalarField& rhoI
) const
{
    attachmentRatio_ = pow3(dB/dP)*Yi*rhoC/(max(Yc, small)*rhoI);

    return attachmentRatio_;
}


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

Foam::volScalarField&
Foam::fv::attachmentModel::surfaceLoading
(
    const volScalarField& dB,
    const volScalarField& dP,
    const volScalarField& Yc,
    const volScalarField& Yi,
    const volScalarField& rhoC,
    const volScalarField& rhoI
) const
{
    surfaceLoading_ =
        0.25*attachmentRatio(dB, dP, Yc, Yi, rhoC, rhoI)*sqr(dP/dB);

    return surfaceLoading_;
}


Foam::tmp<Foam::volScalarField>
Foam::fv::attachmentModel::attachmentLimiter() const
{
    return
        tmp<volScalarField>
        (
            volScalarField::New("attachmentLimiter", interface_.mesh(), 1.0)
        );
}


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

Foam::fv::attachmentModel::attachmentModel
(
    const dictionary& dict,
    const dispersedPhaseInterface& interface,
    const hashedWordList& species
)
:
    interface_(interface),
    detachedPhase_(interface_.dispersed()),
    aggregatePhase_(interface_.continuous()),
    residualAlpha_
    (
        "residualAlpha",
        dimless,
        dict,
        10*aggregatePhase_.residualAlpha().value()
    ),
    thermo_
    (
        interface_.mesh().lookupObject<rhoFluidMulticomponentThermo>
        (
            IOobject::groupName
            (
                physicalProperties::typeName,
                aggregatePhase_.name()
            )
        )
    ),
    species_(species),
    carrierSpecie_(dict.lookup("carrierSpecie")),
    indexC_(thermo_.specieIndex(aggregatePhase_.Y(carrierSpecie_))),
    indexI_(thermo_.specieIndex(aggregatePhase_.Y(species_[0]))),
    maxLoading_(dict.lookupOrDefault<scalar>("maxLoading", dimless, 1.0)),
    attachmentRatio_
    (
        IOobject
        (
            IOobject::groupName("attachmentRatio", aggregatePhase_.name()),
            interface_.mesh().time().name(),
            interface_.mesh(),
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        interface_.mesh(),
        dimensionedScalar(dimless, Zero)
    ),
    surfaceLoading_
    (
        IOobject
        (
            IOobject::groupName("surfaceLoading", aggregatePhase_.name()),
            interface_.mesh().time().name(),
            interface_.mesh(),
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        interface_.mesh(),
        dimensionedScalar(dimless, Zero)
    )
{}


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

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


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

const Foam::hashedWordList&
Foam::fv::attachmentModel::species() const
{
    return species_;
}


Foam::tmp<Foam::volScalarField::Internal>
Foam::fv::attachmentModel::dmidtf() const
{
    const volScalarField attachmentRate(rate());

    return
        attachmentLimiter()().internalField()
       *attachmentRate.internalField()
       *pos
        (
            detachedPhase_.internalField()
          - detachedPhase_.residualAlpha()
        )
       *pos
        (
            aggregatePhase_.internalField()
          - residualAlpha_
        )
       *pos0
        (
           detachedPhase_.internalField()*detachedPhase_.rho().internalField()
         - interface_.mesh().time().deltaT()*attachmentRate.internalField()
        );
}


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