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LamBremhorstKE.H

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00001 /*---------------------------------------------------------------------------*\
00002   =========                 |
00003   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
00004    \\    /   O peration     |
00005     \\  /    A nd           | Copyright (C) 1991-2005 OpenCFD Ltd.
00006      \\/     M anipulation  |
00007 -------------------------------------------------------------------------------
00008 License
00009     This file is part of OpenFOAM.
00010 
00011     OpenFOAM is free software; you can redistribute it and/or modify it
00012     under the terms of the GNU General Public License as published by the
00013     Free Software Foundation; either version 2 of the License, or (at your
00014     option) any later version.
00015 
00016     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
00017     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
00019     for more details.
00020 
00021     You should have received a copy of the GNU General Public License
00022     along with OpenFOAM; if not, write to the Free Software Foundation,
00023     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
00024 
00025 Class
00026     LamBremhorstKE
00027 
00028 Description
00029     Lam and Bremhorst low-Reynolds number k-epsilon turbulence model.
00030 
00031 SourceFiles
00032     LamBremhorstKE.C
00033     LamBremhorstKECorrect.C
00034 
00035 \*---------------------------------------------------------------------------*/
00036 
00037 #ifndef LamBremhorstKE_H
00038 #define LamBremhorstKE_H
00039 
00040 #include "turbulenceModel.H"
00041 #include "wallDist.H"
00042 
00043 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00044 
00045 namespace Foam
00046 {
00047 namespace turbulenceModels
00048 {
00049 
00050 /*---------------------------------------------------------------------------*\
00051                            Class LamBremhorstKE Declaration
00052 \*---------------------------------------------------------------------------*/
00053 
00054 class LamBremhorstKE
00055 :
00056     public turbulenceModel
00057 {
00058     // Private data
00059 
00060         dimensionedScalar Cmu;
00061         dimensionedScalar C1;
00062         dimensionedScalar C2;
00063         dimensionedScalar alphaEps;
00064 
00065         volScalarField k_;
00066         volScalarField epsilon_;
00067 
00068         wallDist y_;
00069         volScalarField Rt_;
00070 
00071         volScalarField fMu_;
00072         volScalarField nut_;
00073 
00074 
00075 public:
00076 
00077     //- Runtime type information
00078     TypeName("LamBremhorstKE");
00079 
00080 
00081     // Constructors
00082 
00083         //- from components
00084         LamBremhorstKE
00085         (
00086             const volVectorField& U,
00087             const surfaceScalarField& phi,
00088             transportModel& transport
00089         );
00090 
00091 
00092     // Destructor
00093 
00094         ~LamBremhorstKE(){}
00095 
00096 
00097     // Member Functions
00098 
00099         tmp<volScalarField> nut() const
00100         {
00101             return nut_;
00102         }
00103 
00104         //- Return the effective diffusivity for k
00105         tmp<volScalarField> DkEff() const
00106         {
00107             return tmp<volScalarField> 
00108             (
00109                 new volScalarField("DkEff", nut_ + nu())
00110             );
00111         }
00112 
00113         //- Return the effective diffusivity for epsilon
00114         tmp<volScalarField> DepsilonEff() const
00115         {
00116             return tmp<volScalarField> 
00117             (
00118                 new volScalarField("DepsilonEff", alphaEps*nut_ + nu())
00119             );
00120         }
00121 
00122         tmp<volScalarField> k() const
00123         {
00124             return k_;
00125         }
00126 
00127         tmp<volScalarField> epsilon() const
00128         {
00129             return epsilon_;
00130         }
00131 
00132         tmp<volTensorField> R() const;
00133 
00134         tmp<fvVectorMatrix> divR(volVectorField& U) const;
00135 
00136         void correct();
00137 
00138         //- Read turbulenceProperties dictionary
00139         bool read();
00140 };
00141 
00142 
00143 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00144 
00145 } // End namespace turbulenceModels
00146 } // End namespace Foam
00147 
00148 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00149 
00150 #endif
00151 
00152 // ************************************************************************* //
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