a5ea0b41f1
The interface for fvModels has been modified to improve its application
to "proxy" equations. That is, equations that are not straightforward
statements of conservation laws in OpenFOAM's usual convention.
A standard conservation law typically takes the following form:
fvMatrix<scalar> psiEqn
(
fvm::ddt(alpha, rho, psi)
+ <fluxes>
==
<sources>
);
A proxy equation, on the other hand, may be a derivation or
rearrangement of a law like this, and may be linearised in terms of a
different variable.
The pressure equation is the most common example of a proxy equation. It
represents a statement of the conservation of volume or mass, but it is
a rearrangement of the original continuity equation, and it has been
linearised in terms of a different variable; the pressure. Another
example is that in the pre-predictor of a VoF solver the
phase-continuity equation is constructed, but it is linearised in terms
of volume fraction rather than density.
In these situations, fvModels sources are now applied by calling:
fvModels().sourceProxy(<conserved-fields ...>, <equation-field>)
Where <conserved-fields ...> are (alpha, rho, psi), (rho, psi), just
(psi), or are omitted entirely (for volume continuity), and the
<equation-field> is the field associated with the proxy equation. This
produces a source term identical in value to the following call:
fvModels().source(<conserved-fields ...>)
It is only the linearisation in terms of <equation-field> that differs
between these two calls.
This change permits much greater flexibility in the handling of mass and
volume sources than the previous name-based system did. All the relevant
fields are available, dimensions can be used in the logic to determine
what sources are being constructed, and sources relating to a given
conservation law all share the same function.
This commit adds the functionality for injection-type sources in the
compressibleVoF solver. A following commit will add a volume source
model for use in incompressible solvers.
142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) YEAR OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Description
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Template for use with dynamic code generation of a source.
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SourceFiles
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codedFvModelTemplate.C
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\*---------------------------------------------------------------------------*/
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#ifndef codedFvModelTemplate_H
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#define codedFvModelTemplate_H
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#include "fvModel.H"
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#include "fvCellSet.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace fv
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{
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/*---------------------------------------------------------------------------*\
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A templated CodedFvModel
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\*---------------------------------------------------------------------------*/
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class ${typeName}FvModel${SourceType}
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:
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public fvModel
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{
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// Private Data
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//- The set of cells the fvModel applies to
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fvCellSet set_;
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public:
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//- Information about the SHA1 of the code itself
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static const char* const SHA1sum;
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//- Runtime type information
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TypeName("${typeName}");
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// Constructors
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//- Construct from components
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${typeName}FvModel${SourceType}
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(
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const word& name,
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const word& modelType,
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const fvMesh& mesh,
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const dictionary& dict
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);
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//- Destructor
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virtual ~${typeName}FvModel${SourceType}();
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// Member Functions
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// Evaluation
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//- Explicit and implicit matrix contributions
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virtual void addSup
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(
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const VolField<${TemplateType}>& field,
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fvMatrix<${TemplateType}>& eqn
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) const;
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//- Explicit and implicit matrix contributions for compressible
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// equations
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virtual void addSup
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(
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const volScalarField& rho,
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const VolField<${TemplateType}>& field,
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fvMatrix<${TemplateType}>& eqn
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) const;
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//- Explicit and implicit matrix contributions for phase equations
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virtual void addSup
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(
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const volScalarField& alpha,
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const volScalarField& rho,
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const VolField<${TemplateType}>& field,
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fvMatrix<${TemplateType}>& eqn
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) const;
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// Mesh motion
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//- Update for mesh motion
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virtual bool movePoints();
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//- Update topology using the given map
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virtual void topoChange(const polyTopoChangeMap&);
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//- Update from another mesh using the given map
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virtual void mapMesh(const polyMeshMap&);
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//- Redistribute or update using the given distribution map
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virtual void distribute(const polyDistributionMap&);
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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} // End namespace fv
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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