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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 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::semiImplicitSource
Description
Semi-implicit source, described using an input dictionary. The injection
rate coefficients are specified as pairs of Su-Sp coefficients, i.e.
\f[
S(x) = S_u + S_p x
\f]
where
\vartable
S(x) | net source for field 'x'
S_u | explicit source contribution
S_p | linearised implicit contribution
\endvartable
Example tabulated heat source specification for internal energy:
\verbatim
volumeMode absolute; // specific
sources
{
e
{
explicit table ((0 0) (1.5 $power));
implicit 0;
}
}
\endverbatim
Example coded heat source specification for enthalpy:
\verbatim
volumeMode absolute; // specific
sources
{
h
{
explicit
{
type coded;
name heatInjection;
code
#{
// Power amplitude
const scalar powerAmplitude = 1000;
// x is the current time
return mag(powerAmplitude*sin(x));
#};
}
implicit 0;
}
}
\endverbatim
Valid fvModels for the \c volumeMode entry include:
- absolute: values are given as \<quantity\>
- specific: values are given as \<quantity\>/m3
See also
Foam::fvModel
SourceFiles
semiImplicitSource.C
\*---------------------------------------------------------------------------*/
#ifndef semiImplicitSource_H
#define semiImplicitSource_H
#include "fvModel.H"
#include "fvCellZone.H"
#include "HashPtrTable.H"
#include "unknownTypeFunction1.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace fv
{
/*---------------------------------------------------------------------------*\
Class semiImplicitSource Declaration
\*---------------------------------------------------------------------------*/
class semiImplicitSource
:
public fvModel
{
public:
// Public data
//- Enumeration for volume types
enum class volumeMode
{
absolute,
specific
};
//- Property type names
static const NamedEnum<volumeMode, 2> volumeModeNames_;
private:
// Private Data
//- The cellZone the fvConstraint applies to
mutable fvCellZone zone_;
//- Volume mode
volumeMode volumeMode_;
//- Explicit parts of the sources
HashPtrTable<unknownTypeFunction1> fieldSu_;
//- Implicit parts of the sources
HashPtrTable<unknownTypeFunction1> fieldSp_;
// Private Member Functions
//- Non-virtual read
void readCoeffs(const dictionary& dict);
// Sources
//- Add a source term to an equation
template <class Type>
void addSupType
(
const VolField<Type>& field,
fvMatrix<Type>& eqn
) const;
//- Add a source term to a compressible equation
template <class Type>
void addSupType
(
const volScalarField& rho,
const VolField<Type>& field,
fvMatrix<Type>& eqn
) const;
//- Add a source term to a phase equation
template <class Type>
void addSupType
(
const volScalarField& alpha,
const volScalarField& rho,
const VolField<Type>& field,
fvMatrix<Type>& eqn
) const;
public:
//- Runtime type information
TypeName("semiImplicitSource");
// Constructors
//- Construct from components
semiImplicitSource
(
const word& name,
const word& modelType,
const fvMesh& mesh,
const dictionary& dict
);
//- Destructor
virtual ~semiImplicitSource();
// 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 equation
FOR_ALL_FIELD_TYPES(DEFINE_FV_MODEL_ADD_FIELD_SUP)
//- Add a source term to a compressible 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&);
// IO
//- Read source dictionary
virtual bool read(const dictionary& dict);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace fv
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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