ce42ebc5d7
None of the current thermophysicalTransportModels solve transport equations in order to evaluate the thermophysical transport properties so it makes more sense that the evaluation occurs at the beginning of the time-step rather than at the end where conservative fluxes are available for transport solution. To enable this the correct() functions have been renamed predict() and called in the prePredictor() step of foamRun and foamMultiRun and at the beginning of the time-step in the legacy solvers. A particular advantage of this approach is that complex data cached in the thermophysicalTransportModels can now be deleted following mesh topology changes and recreated in the predict() call which is more efficient than attempting to register and map the data. An empty correct() function is included in addition to the new predict() function in thermophysicalTransportModel to support scalar flux transport closure in the future if needed. Additionally the two transport model corrector function calls in foamRun and foamMultiRun have been combined into a single postCorrector() call to allow greater flexibility in transport property prediction and correction in the modular solvers.
131 lines
3.7 KiB
C++
131 lines
3.7 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) 2022 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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Class
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Foam::solvers::fluid
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Description
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Solver module for steady or transient turbulent flow of compressible fluids
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with heat-transfer for HVAC and similar applications, with optional
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mesh motion and change.
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Uses the flexible PIMPLE (PISO-SIMPLE) solution for time-resolved and
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pseudo-transient and steady simulations.
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Optional fvModels and fvConstraints are provided to enhance the simulation
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in many ways including adding various sources, Lagrangian particles,
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radiation, surface film etc. and constraining or limiting the solution.
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Reference:
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\verbatim
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Greenshields, C. J., & Weller, H. G. (2022).
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Notes on Computational Fluid Dynamics: General Principles.
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CFD Direct Ltd.: Reading, UK.
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\endverbatim
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SourceFiles
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fluid.C
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\*---------------------------------------------------------------------------*/
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#ifndef fluid_H
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#define fluid_H
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#include "isothermalFluid.H"
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#include "fluidThermoThermophysicalTransportModel.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace solvers
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{
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/*---------------------------------------------------------------------------*\
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Class fluid Declaration
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\*---------------------------------------------------------------------------*/
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class fluid
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:
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public isothermalFluid
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{
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protected:
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// Thermophysical transport
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autoPtr<fluidThermoThermophysicalTransportModel>
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thermophysicalTransport;
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public:
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//- Runtime type information
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TypeName("fluid");
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// Constructors
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//- Construct from region mesh
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fluid(fvMesh& mesh);
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//- Disallow default bitwise copy construction
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fluid(const fluid&) = delete;
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//- Destructor
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virtual ~fluid();
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// Member Functions
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//- Called at the start of the PIMPLE loop
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virtual void prePredictor();
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//- Construct and solve the energy equation,
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// convert to temperature
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// and update thermophysical and transport properties
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virtual void thermophysicalPredictor();
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//- Correct the momentum and thermophysical transport modelling
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virtual void postCorrector();
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// Member Operators
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//- Disallow default bitwise assignment
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void operator=(const fluid&) = delete;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace solvers
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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