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Commit cdc8909f authored by andy's avatar andy
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ENH: Added new fixed-coefficient porosity model

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......@@ -371,6 +371,7 @@ $(porosity)/porosityModel/porosityModelList.C
$(porosity)/porosityModel/IOporosityModelList.C
$(porosity)/DarcyForchheimer/DarcyForchheimer.C
$(porosity)/powerLaw/powerLaw.C
$(porosity)/fixedCoeff/fixedCoeff.C
MRF = $(general)/MRF
$(MRF)/MRFZone.C
......
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2012 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 "addToRunTimeSelectionTable.H"
#include "fixedCoeff.H"
#include "fvMatrices.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace porosityModels
{
defineTypeNameAndDebug(fixedCoeff, 0);
addToRunTimeSelectionTable(porosityModel, fixedCoeff, mesh);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::porosityModels::fixedCoeff::apply
(
scalarField& Udiag,
vectorField& Usource,
const scalarField& V,
const vectorField& U,
const scalar rho
) const
{
const tensor& alpha = alpha_.value();
const tensor& beta = beta_.value();
forAll(cellZoneIds_, zoneI)
{
const labelList& cells = mesh_.cellZones()[cellZoneIds_[zoneI]];
forAll(cells, i)
{
const label cellI = cells[i];
const tensor Cd = rho*(alpha + beta*mag(U[cellI]));
const scalar isoCd = tr(Cd);
Udiag[cellI] += V[cellI]*isoCd;
Usource[cellI] -= V[cellI]*((Cd - I*isoCd) & U[cellI]);
}
}
}
void Foam::porosityModels::fixedCoeff::apply
(
tensorField& AU,
const vectorField& U,
const scalar rho
) const
{
const tensor& alpha = alpha_.value();
const tensor& beta = beta_.value();
forAll(cellZoneIds_, zoneI)
{
const labelList& cells = mesh_.cellZones()[cellZoneIds_[zoneI]];
forAll(cells, i)
{
const label cellI = cells[i];
AU[cellI] += rho*(alpha + beta*mag(U[cellI]));
}
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::porosityModels::fixedCoeff::fixedCoeff
(
const word& name,
const word& modelType,
const fvMesh& mesh,
const dictionary& dict
)
:
porosityModel(name, modelType, mesh, dict),
coordSys_(coeffs_, mesh),
alpha_("alpha", dimless/dimTime, tensor::zero),
beta_("beta", dimless/dimLength, tensor::zero)
{
// local-to-global transformation tensor
const tensor& E = coordSys_.R();
dimensionedVector alpha(coeffs_.lookup("alpha"));
if (alpha_.dimensions() != alpha.dimensions())
{
FatalIOErrorIn
(
"Foam::porosityModels::fixedCoeff::fixedCoeff"
"("
"const word&, "
"const word&, "
"const fvMesh&, "
"const dictionary&"
")",
coeffs_
) << "incorrect dimensions for alpha: " << alpha.dimensions()
<< " should be " << alpha_.dimensions()
<< exit(FatalIOError);
}
adjustNegativeResistance(alpha);
alpha_.value().xx() = alpha.value().x();
alpha_.value().yy() = alpha.value().y();
alpha_.value().zz() = alpha.value().z();
alpha_.value() = (E & alpha_ & E.T()).value();
dimensionedVector beta(coeffs_.lookup("beta"));
if (beta_.dimensions() != beta.dimensions())
{
FatalIOErrorIn
(
"Foam::porosityModels::fixedCoeff::fixedCoeff"
"("
"const word&, "
"const word&, "
"const fvMesh&, "
"const dictionary&"
")",
coeffs_
) << "incorrect dimensions for beta: " << beta.dimensions()
<< " should be " << beta_.dimensions()
<< exit(FatalIOError);
}
adjustNegativeResistance(beta);
beta_.value().xx() = beta.value().x();
beta_.value().yy() = beta.value().y();
beta_.value().zz() = beta.value().z();
beta_.value() = (E & beta_ & E.T()).value();
}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::porosityModels::fixedCoeff::~fixedCoeff()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::porosityModels::fixedCoeff::correct
(
fvVectorMatrix& UEqn
) const
{
const vectorField& U = UEqn.psi();
const scalarField& V = mesh_.V();
scalarField& Udiag = UEqn.diag();
vectorField& Usource = UEqn.source();
scalar rho = 1.0;
if (UEqn.dimensions() == dimForce)
{
coeffs_.lookup("rhoRef") >> rho;
}
apply(Udiag, Usource, V, U, rho);
}
void Foam::porosityModels::fixedCoeff::correct
(
fvVectorMatrix& UEqn,
const volScalarField&,
const volScalarField&
) const
{
const vectorField& U = UEqn.psi();
const scalarField& V = mesh_.V();
scalarField& Udiag = UEqn.diag();
vectorField& Usource = UEqn.source();
scalar rho = 1.0;
if (UEqn.dimensions() == dimForce)
{
coeffs_.lookup("rhoRef") >> rho;
}
apply(Udiag, Usource, V, U, rho);
}
void Foam::porosityModels::fixedCoeff::correct
(
const fvVectorMatrix& UEqn,
volTensorField& AU
) const
{
const vectorField& U = UEqn.psi();
scalar rho = 1.0;
if (UEqn.dimensions() == dimForce)
{
coeffs_.lookup("rhoRef") >> rho;
}
apply(AU, U, rho);
}
void Foam::porosityModels::fixedCoeff::writeData(Ostream& os) const
{
os << indent << name_ << endl;
dict_.write(os);
}
// ************************************************************************* //
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2012 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/>.
Class
Foam::fixedCoeff
Description
Fixed coefficient form of porosity model
\f[
S = - \rho_ref (\alpha + \beta |U|) U
\f]
In the case of compressible flow, a value for the reference density is
required
SourceFiles
fixedCoeff.C
\*---------------------------------------------------------------------------*/
#ifndef fixedCoeff_H
#define fixedCoeff_H
#include "porosityModel.H"
#include "coordinateSystem.H"
#include "dimensionedTensor.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace porosityModels
{
/*---------------------------------------------------------------------------*\
Class fixedCoeff Declaration
\*---------------------------------------------------------------------------*/
class fixedCoeff
:
public porosityModel
{
private:
// Private data
//- Local co-ordinate system
coordinateSystem coordSys_;
//- Model alpha coefficient [1/s]
dimensionedTensor alpha_;
//- Model beta coefficient [1/m]
dimensionedTensor beta_;
// Private Member Functions
//- Apply
void apply
(
scalarField& Udiag,
vectorField& Usource,
const scalarField& V,
const vectorField& U,
const scalar rho
) const;
//- Apply
void apply
(
tensorField& AU,
const vectorField& U,
const scalar rho
) const;
//- Disallow default bitwise copy construct
fixedCoeff(const fixedCoeff&);
//- Disallow default bitwise assignment
void operator=(const fixedCoeff&);
public:
//- Runtime type information
TypeName("fixedCoeff");
//- Constructor
fixedCoeff
(
const word& name,
const word& modelType,
const fvMesh& mesh,
const dictionary& dict
);
//- Destructor
virtual ~fixedCoeff();
// Member Functions
//- Add resistance
virtual void correct(fvVectorMatrix& UEqn) const;
//- Add resistance
virtual void correct
(
fvVectorMatrix& UEqn,
const volScalarField& rho,
const volScalarField& mu
) const;
//- Add resistance
virtual void correct
(
const fvVectorMatrix& UEqn,
volTensorField& AU
) const;
// I-O
//- Write
void writeData(Ostream& os) const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace porosityModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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