heatTransfer.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) 2021-2024 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 "heatTransfer.H"
#include "basicThermo.H"
#include "fvmSup.H"
#include "zeroGradientFvPatchFields.H"
#include "fvcVolumeIntegrate.H"
#include "fvModels.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace fv
{
    defineTypeNameAndDebug(heatTransfer, 0);
    addToRunTimeSelectionTable
    (
        fvModel,
        heatTransfer,
        dictionary
    );
}
}
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void Foam::fv::heatTransfer::readCoeffs()
{
    phaseName_ = coeffs().lookupOrDefault<word>("phase", word::null);
 
    semiImplicit_ = coeffs().lookup<bool>("semiImplicit");
 
    TName_ = coeffs().lookupOrDefault<word>("T", "T");
 
    Ta_ = dimensionedScalar("Ta", dimTemperature, coeffs());
 
    heatTransferAv_.reset(new heatTransferAv(coeffs(), mesh()));
 
    heatTransferCoefficientModel_ =
        heatTransferCoefficientModel::New(coeffs(), mesh());
}
 
 
template<class AlphaFieldType>
void Foam::fv::heatTransfer::add
(
    const AlphaFieldType& alpha,
    fvMatrix<scalar>& eqn
) const
{
    const volScalarField& he = eqn.psi();
 
    const volScalarField& T =
        mesh().lookupObject<volScalarField>
        (
            IOobject::groupName(TName_, phaseName_)
        );
 
    tmp<volScalarField> mask =
        volScalarField::New("mask", mesh(), dimensionedScalar(dimless, 0));
    UIndirectList<scalar>(mask.ref().primitiveFieldRef(), set_.cells()) = 1;
    const volScalarField htcAv
    (
        alpha*mask*heatTransferCoefficientModel_->htc()*heatTransferAv_->Av()
    );
 
    if (semiImplicit_)
    {
        if (he.dimensions() == dimEnergy/dimMass)
        {
            const basicThermo& thermo =
               mesh().lookupObject<basicThermo>
               (
                   IOobject::groupName(physicalProperties::typeName, phaseName_)
               );
 
            const volScalarField htcAvByCpv(htcAv/thermo.Cpv());
 
            eqn += htcAv*(Ta_ - T) + htcAvByCpv*he - fvm::Sp(htcAvByCpv, he);
        }
        else if (he.dimensions() == dimTemperature)
        {
            eqn += htcAv*Ta_ - fvm::Sp(htcAv, he);
        }
    }
    else
    {
        eqn += htcAv*(Ta_ - T);
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::fv::heatTransfer::heatTransfer
(
    const word& name,
    const word& modelType,
    const fvMesh& mesh,
    const dictionary& dict
)
:
    fvModel(name, modelType, mesh, dict),
    set_(mesh, coeffs()),
    phaseName_(word::null),
    semiImplicit_(false),
    TName_(word::null),
    Ta_("Ta", dimTemperature, NaN),
    heatTransferAv_(nullptr),
    heatTransferCoefficientModel_(nullptr)
{
    readCoeffs();
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::fv::heatTransfer::~heatTransfer()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::wordList Foam::fv::heatTransfer::addSupFields() const
{
    const basicThermo& thermo =
        mesh().lookupObject<basicThermo>
        (
            IOobject::groupName(physicalProperties::typeName, phaseName_)
        );
 
    return wordList(1, thermo.he().name());
}
 
 
void Foam::fv::heatTransfer::addSup
(
    const volScalarField& he,
    fvMatrix<scalar>& eqn
) const
{
    add(geometricOneField(), eqn);
}
 
 
void Foam::fv::heatTransfer::addSup
(
    const volScalarField& rho,
    const volScalarField& he,
    fvMatrix<scalar>& eqn
) const
{
    add(geometricOneField(), eqn);
}
 
 
void Foam::fv::heatTransfer::addSup
(
    const volScalarField& alpha,
    const volScalarField& rho,
    const volScalarField& he,
    fvMatrix<scalar>& eqn
) const
{
    add(alpha, eqn);
}
 
 
void Foam::fv::heatTransfer::correct()
{
    heatTransferCoefficientModel_->correct();
}
 
 
bool Foam::fv::heatTransfer::movePoints()
{
    set_.movePoints();
    return true;
}
 
 
void Foam::fv::heatTransfer::topoChange(const polyTopoChangeMap& map)
{
    set_.topoChange(map);
}
 
 
void Foam::fv::heatTransfer::mapMesh(const polyMeshMap& map)
{
    set_.mapMesh(map);
}
 
 
void Foam::fv::heatTransfer::distribute(const polyDistributionMap& map)
{
    set_.distribute(map);
}
 
 
bool Foam::fv::heatTransfer::read(const dictionary& dict)
{
    if (fvModel::read(dict))
    {
        readCoeffs();
        return true;
    }
    else
    {
        return false;
    }
}
 
 
// ************************************************************************* //