VoFSolidificationMeltingSource.C

Go to the documentation of this file.

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Copyright (C) 2017-2023 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
#include "VoFSolidificationMeltingSource.H"
#include "compressibleTwoPhaseVoFMixture.H"
#include "fvcDdt.H"
#include "zeroGradientFvPatchFields.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
 
namespace Foam
{
    namespace fv
    {
        defineTypeNameAndDebug(VoFSolidificationMeltingSource, 0);
 
        addToRunTimeSelectionTable
        (
            fvModel,
            VoFSolidificationMeltingSource,
            dictionary
        );
    }
}
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void Foam::fv::VoFSolidificationMeltingSource::readCoeffs()
{
    alphaSolidT_.reset(Function1<scalar>::New("alphaSolidT", coeffs()).ptr());
    L_ = dimensionedScalar("L", dimEnergy/dimMass, coeffs());
    relax_ = coeffs().lookupOrDefault<scalar>("relax", 0.9);
    Cu_ = coeffs().lookupOrDefault<scalar>("Cu", 100000);
    q_ = coeffs().lookupOrDefault<scalar>("q", 0.001);
}
 
 
Foam::word Foam::fv::VoFSolidificationMeltingSource::alphaSolidName() const
{
    const compressibleTwoPhaseVoFMixture& thermo
    (
        mesh().lookupObject<compressibleTwoPhaseVoFMixture>
        (
            "phaseProperties"
        )
    );
 
    const volScalarField& alphaVoF = thermo.alpha1();
 
    return IOobject::groupName(alphaVoF.name(), "solid");
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::fv::VoFSolidificationMeltingSource::VoFSolidificationMeltingSource
(
    const word& name,
    const word& modelType,
    const fvMesh& mesh,
    const dictionary& dict
)
:
    fvModel(name, modelType, mesh, dict),
    set_(mesh, coeffs()),
    alphaSolidT_(),
    L_("L", dimEnergy/dimMass, NaN),
    relax_(NaN),
    Cu_(NaN),
    q_(NaN),
 
    thermo_
    (
        mesh().lookupObject<compressibleTwoPhaseVoFMixture>
        (
            "phaseProperties"
        )
    ),
 
    alphaSolid_
    (
        IOobject
        (
            alphaSolidName(),
            mesh.time().name(),
            mesh,
            IOobject::READ_IF_PRESENT,
            IOobject::AUTO_WRITE
        ),
        mesh,
        dimensionedScalar(dimless, 0),
        zeroGradientFvPatchScalarField::typeName
    )
{
    readCoeffs();
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::wordList Foam::fv::VoFSolidificationMeltingSource::addSupFields() const
{
    return wordList({"U", thermo_.thermo1().he().name()});
}
 
 
void Foam::fv::VoFSolidificationMeltingSource::addSup
(
    const volScalarField& alpha,
    const volScalarField& rho,
    fvMatrix<scalar>& eqn,
    const word& fieldName
) const
{
    if (debug)
    {
        Info<< type() << ": applying source to " << eqn.psi().name() << endl;
    }
 
    eqn += L_*(fvc::ddt(rho, alphaSolid_));
}
 
 
void Foam::fv::VoFSolidificationMeltingSource::addSup
(
    const volScalarField& rho,
    fvMatrix<vector>& eqn,
    const word& fieldName
) const
{
    if (debug)
    {
        Info<< type() << ": applying source to " << eqn.psi().name() << endl;
    }
 
    scalarField& Sp = eqn.diag();
    const scalarField& V = mesh().V();
 
    const labelUList cells = set_.cells();
 
    forAll(cells, i)
    {
        const label celli = cells[i];
        const scalar Vc = V[celli];
        const scalar alphaFluid = 1 - alphaSolid_[celli];
 
        const scalar S = Cu_*sqr(1 - alphaFluid)/(pow3(alphaFluid) + q_);
 
        Sp[celli] -= Vc*rho[celli]*S;
    }
}
 
 
void Foam::fv::VoFSolidificationMeltingSource::correct()
{
    if (debug)
    {
        Info<< type() << ": " << name()
            << " - updating solid phase fraction" << endl;
    }
 
    alphaSolid_.oldTime();
 
    const compressibleTwoPhaseVoFMixture& thermo
    (
        mesh().lookupObject<compressibleTwoPhaseVoFMixture>
        (
            "phaseProperties"
        )
    );
 
    const volScalarField& TVoF = thermo.thermo1().T();
    const volScalarField CpVoF(thermo.thermo1().Cp());
    const volScalarField& alphaVoF = thermo.alpha1();
 
    const labelUList cells = set_.cells();
 
    forAll(cells, i)
    {
        const label celli = cells[i];
 
        alphaSolid_[celli] = min
        (
            relax_*alphaVoF[celli]*alphaSolidT_->value(TVoF[celli])
          + (1 - relax_)*alphaSolid_[celli],
            alphaVoF[celli]
        );
    }
 
    alphaSolid_.correctBoundaryConditions();
}
 
 
void Foam::fv::VoFSolidificationMeltingSource::topoChange
(
    const polyTopoChangeMap& map
)
{
    set_.topoChange(map);
}
 
 
void Foam::fv::VoFSolidificationMeltingSource::mapMesh(const polyMeshMap& map)
{
    set_.mapMesh(map);
}
 
 
void Foam::fv::VoFSolidificationMeltingSource::distribute
(
    const polyDistributionMap& map
)
{
    set_.distribute(map);
}
 
 
bool Foam::fv::VoFSolidificationMeltingSource::movePoints()
{
    set_.movePoints();
    return true;
}
 
 
bool Foam::fv::VoFSolidificationMeltingSource::read(const dictionary& dict)
{
    if (fvModel::read(dict))
    {
        set_.read(coeffs());
        readCoeffs();
        return true;
    }
    else
    {
        return false;
    }
 
    return false;
}
 
 
// ************************************************************************* //