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

    If you are interested in which files are original OpenFOAM Foundation
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    Multiphase Code Repository by HZDR is free software: you can redistribute
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#include "Shi.H"
#include "fvcCurl.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace wallLubricationModels
{
    defineTypeNameAndDebug(Shi, 0);
    addToRunTimeSelectionTable
    (
        wallLubricationModel,
        Shi,
        dictionary
    );
}
}


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

Foam::wallLubricationModels::Shi::Shi
(
    const dictionary& dict,
    const phaseInterface& interface
)
:
    dispersedWallLubricationModel(dict, interface),
    residualRe_("residualRe", dimless, dict, 1e-1)
{}


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

Foam::wallLubricationModels::Shi::~Shi()
{}


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

Foam::tmp<Foam::volVectorField> Foam::wallLubricationModels::Shi::
Fi() const
{
    const volVectorField& n(nWall());
    const volScalarField& y(yWall());
    tmp<volScalarField> td(interface_.dispersed().d());
    const volScalarField& d = td();

    const volScalarField Re
    (
        min
        (
            max
            (
                interface_.Re(),
                residualRe_
            ),
            scalar(100.0)
        )
    );
    const volScalarField Sr(min(interface_.Sr(Re), scalar(1.0)));
    const volScalarField Lu(Re*y/d);

    const volScalarField fReLR
    (
        1 + tanh(0.2*Re*sqr(y/d))*(0.37*Re - 0.12*sqrt(Re))
    );

    return zeroGradWalls
    (
        max
        (
            dimensionedScalar(inv(dimLength), Zero),
            exp
            (
               -0.22*pow(Sr/Re, 0.4)*pow(y/d*sqrt(Sr*Re), 2.5)
               *exp(-0.01*sqr(Re))
            )
           *fReLR*pow(2*y/(3*d), -2*tanh(0.01*Re))*0.84375/d
           *(
                neg0(Lu - 10)/(1 + 0.13*Lu*(0.53 + Lu))
              + pos(Lu - 10)*7.95*pow(Lu, -2.09)
            )
        )
       *interface_.continuous().rho()
       *magSqr(interface_.Ur() - (interface_.Ur() & n)*n)
       *n
    );
}


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