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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 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::solidElectricalConduction
Description
This fvModel represents conduction through a solid region. It solves for
the electric potential, calculates the current, and applies the
corresponding Joule heating source to the energy equation. It requires the
user to specify the electric potential field \c phi in the zero directory.
Usage
Example usage with a constant scalar conductivity:
\verbatim
solidElectricalConduction
{
type solidElectricalConduction;
sigma 35.5e6; // <-- 'sigma<scalar>' is also accepted
}
\endverbatim
Example usage with a constant tensor conductivity:
\verbatim
solidElectricalConduction
{
type solidElectricalConduction;
sigma<tensor> (35.5e6 0 0 0 35.5e6 0 0 0 35.5e6);
}
\endverbatim
Example usage with a functional scalar conductivity, and writing the
conductivity out for post-processing:
\verbatim
solidElectricalConduction
{
type solidElectricalConduction;
sigma
{
type distanceFunction;
function
{
type polynomial;
coeffs (35.5e6 1e9);
}
direction (0 1 0);
}
writeSigma yes;
}
\endverbatim
SourceFiles
solidElectricalConduction.C
\*---------------------------------------------------------------------------*/
#ifndef solidElectricalConduction_H
#define solidElectricalConduction_H
#include "fvModel.H"
#include "volFields.H"
#include "surfaceFields.H"
#include "FunctionalGeometricFieldFwd.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace fv
{
/*---------------------------------------------------------------------------*\
Class solidElectricalConduction Declaration
\*---------------------------------------------------------------------------*/
class solidElectricalConduction
:
public fvModel
{
// Private Data
//- The electric potential
volScalarField phi_;
//- The current
surfaceScalarField I_;
//- The scalar conductivity
autoPtr<FunctionalGeometricField<scalar, fvMesh>> sigmaScalarPtr_;
//- The tensor conductivity
autoPtr<FunctionalGeometricField<tensor, fvMesh>> sigmaTensorPtr_;
//- Write the conductivity?
bool writeSigma_;
//- Has the mesh changed since the last solution?
bool meshChanged_;
// Private Member Functions
//- Non-virtual read
void readCoeffs(const dictionary& dict);
public:
//- Runtime type information
TypeName("solidElectricalConduction");
// Constructors
//- Construct from explicit source name and mesh
solidElectricalConduction
(
const word& name,
const word& modelType,
const fvMesh& mesh,
const dictionary& dict
);
//- Disallow default bitwise copy construction
solidElectricalConduction(const solidElectricalConduction&) = delete;
// Member Functions
// Checks
//- Return the list of fields for which the fvModel adds source term
// to the transport equation
virtual wordList addSupFields() const;
// Evaluate
//- Add explicit contribution to compressible energy equation
virtual void addSup
(
const volScalarField& rho,
const volScalarField& he,
fvMatrix<scalar>& eqn
) const;
//- Solve for the electric potential
virtual void correct();
// 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);
//- Write fvModel data
virtual bool write(const bool write = true) const;
// Member Operators
//- Disallow default bitwise assignment
void operator=(const solidElectricalConduction&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace fv
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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