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DarcyForchheimer.H
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DarcyForchheimer.H
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2012-2024 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/>.
Class
Foam::porosityModels::DarcyForchheimer
Description
Darcy-Forchheimer law porosity model, given by:
\f[
S = - (\mu d + \frac{\rho |U|}{2} f) U
\f]
where
\vartable
d | Darcy coefficient [1/m^2]
f | Forchheimer coefficient [1/m]
\endvartable
Since negative Darcy/Forchheimer parameters are invalid, they can be used
to specify a multiplier (of the max component).
The orientation of the porous region is defined with the same notation as
a co-ordinate system, but only a Cartesian co-ordinate system is valid.
SourceFiles
DarcyForchheimer.C
DarcyForchheimerTemplates.C
\*---------------------------------------------------------------------------*/
#ifndef DarcyForchheimer_H
#define DarcyForchheimer_H
#include "porosityModel.H"
#include "dimensionedTensor.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace porosityModels
{
/*---------------------------------------------------------------------------*\
Class DarcyForchheimer Declaration
\*---------------------------------------------------------------------------*/
class DarcyForchheimer
:
public porosityModel
{
// Private Data
//- Darcy coefficient XYZ components (user-supplied) [1/m^2]
dimensionedVector dXYZ_;
//- Forchheimer coefficient XYZ components (user-supplied) [1/m]
dimensionedVector fXYZ_;
//- Darcy coefficient - converted from dXYZ [1/m^2]
tensorField D_;
//- Forchheimer coefficient - converted from fXYZ [1/m]
tensorField F_;
//- Name of density field
word rhoName_;
//- Name of dynamic viscosity field
word muName_;
//- Name of kinematic viscosity field
word nuName_;
// Private Member Functions
//- Apply
template<class RhoFieldType>
void apply
(
scalarField& Udiag,
vectorField& Usource,
const scalarField& V,
const RhoFieldType& rho,
const scalarField& mu,
const vectorField& U
) const;
//- Apply
template<class RhoFieldType>
void apply
(
tensorField& AU,
const RhoFieldType& rho,
const scalarField& mu,
const vectorField& U
) const;
public:
//- Runtime type information
TypeName("DarcyForchheimer");
// Constructors
DarcyForchheimer
(
const word& name,
const fvMesh& mesh,
const dictionary& dict,
const dictionary& coeffDict,
const word& cellZoneName
);
//- Disallow default bitwise copy construction
DarcyForchheimer(const DarcyForchheimer&) = delete;
//- Destructor
virtual ~DarcyForchheimer();
// Member Functions
//- Transform the model data wrt mesh changes
virtual void calcTransformModelData();
//- Calculate the porosity force
virtual void calcForce
(
const volVectorField& U,
const volScalarField& rho,
const volScalarField& mu,
vectorField& force
) const;
//- Add resistance
virtual void correct(fvVectorMatrix& UEqn) const;
//- Add resistance
virtual void correct
(
const fvVectorMatrix& UEqn,
volTensorField& AU
) const;
// Member Operators
//- Disallow default bitwise assignment
void operator=(const DarcyForchheimer&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace porosityModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#ifdef NoRepository
#include "DarcyForchheimerTemplates.C"
#endif
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //