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BirdCarreau.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     BirdCarreau
00027 
00028 Description
00029     Bird-Carreau non-Newtonian viscosity model.
00030 
00031 SourceFiles
00032     BirdCarreau.C
00033 
00034 \*---------------------------------------------------------------------------*/
00035 
00036 #ifndef BirdCarreau_H
00037 #define BirdCarreau_H
00038 
00039 #include "viscosityModel.H"
00040 #include "dimensionedScalar.H"
00041 #include "volFields.H"
00042 
00043 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00044 
00045 namespace Foam
00046 {
00047 namespace viscosityModels
00048 {
00049 
00050 /*---------------------------------------------------------------------------*\
00051                            Class BirdCarreau Declaration
00052 \*---------------------------------------------------------------------------*/
00053 
00054 class BirdCarreau
00055 :
00056     public viscosityModel
00057 {
00058     // Private data
00059 
00060         dictionary BirdCarreauCoeffs_;
00061 
00062         dimensionedScalar nu0_;
00063         dimensionedScalar nuInf_;
00064         dimensionedScalar k_;
00065         dimensionedScalar n_;
00066 
00067         volScalarField nu_;
00068 
00069 
00070     // Private Member Functions
00071 
00072         //- Calculate and return the laminar viscosity
00073         tmp<volScalarField> calcNu() const;
00074 
00075 
00076 public:
00077 
00078     //- Runtime type information
00079     TypeName("BirdCarreau");
00080 
00081 
00082     // Constructors
00083 
00084         //- construct from components
00085         BirdCarreau
00086         (
00087             const word& name,
00088             const dictionary& viscosityProperties,
00089             const volVectorField& U,
00090             const surfaceScalarField& phi
00091         );
00092 
00093 
00094     // Destructor
00095 
00096         ~BirdCarreau()
00097         {}
00098 
00099 
00100     // Member Functions
00101 
00102         //- Return the laminar viscosity
00103         tmp<volScalarField> nu() const
00104         {
00105             return nu_;
00106         }
00107 
00108         //- Correct the laminar viscosity
00109         void correct()
00110         {
00111             nu_ = calcNu();
00112         }
00113 
00114         //- Read transportProperties dictionary
00115         bool read(const dictionary& viscosityProperties);
00116 };
00117 
00118 
00119 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00120 
00121 } // End namespace viscosityModels
00122 } // End namespace Foam
00123 
00124 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00125 
00126 #endif
00127 
00128 // ************************************************************************* //
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