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https://github.com/OpenFOAM/OpenFOAM-6.git
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93732c8af4
The old separate incompressible and compressible libraries have been removed. Most of the commonly used RANS and LES models have been upgraded to the new framework but there are a few missing which will be added over the next few days, in particular the realizable k-epsilon model. Some of the less common incompressible RANS models have been introduced into the new library instantiated for incompressible flow only. If they prove to be generally useful they can be templated for compressible and multiphase application. The Spalart-Allmaras DDES and IDDES models have been thoroughly debugged, removing serious errors concerning the use of S rather than Omega. The compressible instances of the models have been augmented by a simple backward-compatible eddyDiffusivity model for thermal transport based on alphat and alphaEff. This will be replaced with a separate run-time selectable thermal transport model framework in a few weeks. For simplicity and ease of maintenance and further development the turbulent transport and wall modeling is based on nut/nuEff rather than mut/muEff for compressible models so that all forms of turbulence models can use the same wall-functions and other BCs. All turbulence model selection made in the constant/turbulenceProperties dictionary with RAS and LES as sub-dictionaries rather than in separate files which added huge complexity for multiphase. All tutorials have been updated so study the changes and update your own cases by comparison with similar cases provided. Sorry for the inconvenience in the break in backward-compatibility but this update to the turbulence modeling is an essential step in the future of OpenFOAM to allow more models to be added and maintained for a wider range of cases and physics. Over the next weeks and months more turbulence models will be added of single and multiphase flow, more additional sub-models and further development and testing of existing models. I hope this brings benefits to all OpenFOAM users. Henry G. Weller
161 lines
4.2 KiB
C++
161 lines
4.2 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2015 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::XiGModel
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Description
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Base-class for all Xi generation models used by the b-Xi combustion model.
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See Technical Report SH/RE/01R for details on the PDR modelling. For details
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on the use of XiGModel see \link XiModel.H \endlink. The model available is
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\link instabilityG.H \endlink
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SourceFiles
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XiGModel.C
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\*---------------------------------------------------------------------------*/
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#ifndef XiGModel_H
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#define XiGModel_H
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#include "IOdictionary.H"
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#include "psiuReactionThermo.H"
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#include "turbulentFluidThermoModel.H"
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#include "runTimeSelectionTables.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class XiGModel Declaration
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\*---------------------------------------------------------------------------*/
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class XiGModel
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{
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protected:
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// Protected data
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dictionary XiGModelCoeffs_;
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const psiuReactionThermo& thermo_;
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const compressible::RASModel& turbulence_;
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const volScalarField& Su_;
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private:
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// Private Member Functions
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//- Disallow copy construct
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XiGModel(const XiGModel&);
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//- Disallow default bitwise assignment
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void operator=(const XiGModel&);
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public:
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//- Runtime type information
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TypeName("XiGModel");
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// Declare run-time constructor selection table
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declareRunTimeSelectionTable
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(
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autoPtr,
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XiGModel,
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dictionary,
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(
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const dictionary& XiGProperties,
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const psiuReactionThermo& thermo,
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const compressible::RASModel& turbulence,
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const volScalarField& Su
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),
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(
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XiGProperties,
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thermo,
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turbulence,
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Su
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)
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);
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// Selectors
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//- Return a reference to the selected XiG model
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static autoPtr<XiGModel> New
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(
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const dictionary& XiGProperties,
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const psiuReactionThermo& thermo,
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const compressible::RASModel& turbulence,
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const volScalarField& Su
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);
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// Constructors
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//- Construct from components
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XiGModel
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(
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const dictionary& XiGProperties,
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const psiuReactionThermo& thermo,
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const compressible::RASModel& turbulence,
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const volScalarField& Su
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);
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//- Destructor
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virtual ~XiGModel();
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// Member Functions
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//- Return the flame-wrinking genration rate
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virtual tmp<volScalarField> G() const = 0;
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//- Return the flame diffusivity
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virtual tmp<volScalarField> Db() const
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{
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return turbulence_.muEff();
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}
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//- Update properties from given dictionary
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virtual bool read(const dictionary& XiGProperties) = 0;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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