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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2012-2026 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::fixedTemperature
Description
Fixed temperature equation constraint
Usage
\verbatim
fixedTemperature
{
type fixedTemperature;
cellZone all;
phase gas; // Optional phase name
// Uniform temperature constraint
mode uniform;
temperature constant 500; // Uniform temperature
// // Looked-up field temperature constraint
// T T; // Temperature field name
}
\endverbatim
Note:
The 'uniform' option allows the use of a time-varying uniform
temperature by means of the Function1 type.
SourceFiles
fixedTemperature.C
\*---------------------------------------------------------------------------*/
#ifndef fixedTemperature_H
#define fixedTemperature_H
#include "fvConstraint.H"
#include "fvCellZone.H"
#include "NamedEnum.H"
#include "Function1.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace fv
{
/*---------------------------------------------------------------------------*\
Class fixedTemperature Declaration
\*---------------------------------------------------------------------------*/
class fixedTemperature
:
public fvConstraint
{
public:
//- Temperature mode
enum class temperatureMode
{
uniform,
lookup
};
//- String representation of mode enums
static const NamedEnum<temperatureMode, 2> modeNames_;
private:
// Private Data
//- The cellZone the fvConstraint applies to
mutable fvCellZone zone_;
//- Operation mode
temperatureMode mode_;
//- Uniform temperature [K]
autoPtr<Function1<scalar>> TValue_;
//- Temperature field name
word TName_;
//- Optional phase name
word phaseName_;
//- Fraction of the constraint to apply. Facilitates ramping, or
// pulsing, or deactivation after a time. Should take a value between
// 0 and 1. Defaults to 1 (i.e., apply all of the constraint).
autoPtr<Function1<scalar>> fraction_;
// Private Member Functions
//- Non-virtual read
void readCoeffs(const dictionary& dict);
public:
//- Runtime type information
TypeName("fixedTemperature");
// Constructors
//- Construct from components
fixedTemperature
(
const word& name,
const word& modelType,
const fvMesh& mesh,
const dictionary& dict
);
//- Disallow default bitwise copy construction
fixedTemperature(const fixedTemperature&) = delete;
//- Destructor
virtual ~fixedTemperature()
{}
// Member Functions
//- Return the list of fields constrained by the fvConstraint
virtual wordList constrainedFields() const;
//- Constrain energy equation to fix the temperature
virtual bool constrain
(
fvMatrix<scalar>& eqn,
const word& fieldName
) const;
//- 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 fixedTemperature&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace fv
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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