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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2017-2026 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::fv::phaseLimitStabilisation
Description
Stabilisation source for phase transport equations
Applies an implicit source to the phase transport equation for the
specified \c field when the phase volume fraction is below \c
residualAlpha. The stabilisation rate is provided by the registered \c rate
which can either be a uniformDimensionedScalarField, a volScalarField or a
volInternalScalarField. The \c field is currently stabilised towards zero
in the limit of the phase volume fraction approaching zero but this could
be extended to support a specified value or a value or field looked-up from
the database.
Usage
Example usage:
\verbatim
stabilisation
{
type phaseLimitStabilisation;
field sigma.liquid;
rate rLambda.liquid;
residualAlpha 1e-3;
}
\endverbatim
SourceFiles
phaseLimitStabilisation.C
\*---------------------------------------------------------------------------*/
#ifndef phaseLimitStabilisation_H
#define phaseLimitStabilisation_H
#include "fvModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace fv
{
/*---------------------------------------------------------------------------*\
Class phaseLimitStabilisation Declaration
\*---------------------------------------------------------------------------*/
class phaseLimitStabilisation
:
public fvModel
{
// Private Data
//- Field name
word fieldName_;
//- Rate field name
word rateName_;
//- Residual alpha value below which stabilisation is applied
scalar residualAlpha_;
// Private Member Functions
//- Non-virtual read
void readCoeffs(const dictionary& dict);
//- Add stabilisation source terms
template<class Type, class RhoRateFieldType>
void addStabilisation
(
const volScalarField& alpha,
const RhoRateFieldType& rhoRate,
fvMatrix<Type>& eqn
) const;
//- Add source terms to an incompressible phase equation
template<class Type>
void addSupType
(
const volScalarField& alpha,
const VolField<Type>& field,
fvMatrix<Type>& eqn
) const;
//- Add source terms to a phase equation
template<class Type, class RhoFieldType>
void addSupType
(
const volScalarField& alpha,
const RhoFieldType& rho,
const VolField<Type>& field,
fvMatrix<Type>& eqn
) const;
public:
//- Runtime type information
TypeName("phaseLimitStabilisation");
// Constructors
//- Construct from components
phaseLimitStabilisation
(
const word& name,
const word& modelType,
const fvMesh& mesh,
const dictionary& dict
);
//- Disallow default bitwise copy construction
phaseLimitStabilisation(const phaseLimitStabilisation&) = delete;
//- Destructor
virtual ~phaseLimitStabilisation()
{}
// Member Functions
// Checks
//- Return the list of fields for which the fvModel adds source term
// to the transport equation
virtual wordList addSupFields() const;
// Sources
//- Add a source term to an incompressible phase equation
FOR_ALL_FIELD_TYPES(DEFINE_FV_MODEL_ADD_RHO_FIELD_SUP)
//- Add a source term to a phase equation
FOR_ALL_FIELD_TYPES(DEFINE_FV_MODEL_ADD_ALPHA_RHO_FIELD_SUP)
// Mesh changes
//- Update for mesh motion
virtual bool movePoints();
//- Update topology using the given map
virtual void topoChange(const polyTopoChangeMap&);
//- Update from another mesh using the given map
virtual void mapMesh(const polyMeshMap&);
//- Redistribute or update using the given distribution map
virtual void distribute(const polyDistributionMap&);
//- Read dictionary
virtual bool read(const dictionary& dict);
// Member Operators
//- Disallow default bitwise assignment
void operator=(const phaseLimitStabilisation&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace fv
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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