00001 /*---------------------------------------------------------------------------*\ 00002 ========= | 00003 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 00004 \\ / O peration | 00005 \\ / A nd | Copyright (C) 1991-2010 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 00013 the Free Software Foundation, either version 3 of the License, or 00014 (at your 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, see <http://www.gnu.org/licenses/>. 00023 00024 Class 00025 Foam::viscosityModels::CrossPowerLaw 00026 00027 Description 00028 An incompressible Cross-Power law non-Newtonian viscosity model. 00029 00030 SourceFiles 00031 CrossPowerLaw.C 00032 00033 \*---------------------------------------------------------------------------*/ 00034 00035 #ifndef CrossPowerLaw_H 00036 #define CrossPowerLaw_H 00037 00038 #include <incompressibleTransportModels/viscosityModel.H> 00039 #include <OpenFOAM/dimensionedScalar.H> 00040 #include <finiteVolume/volFields.H> 00041 00042 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00043 00044 namespace Foam 00045 { 00046 namespace viscosityModels 00047 { 00048 00049 /*---------------------------------------------------------------------------*\ 00050 Class CrossPowerLaw Declaration 00051 \*---------------------------------------------------------------------------*/ 00052 00053 class CrossPowerLaw 00054 : 00055 public viscosityModel 00056 { 00057 // Private data 00058 00059 dictionary CrossPowerLawCoeffs_; 00060 00061 dimensionedScalar nu0_; 00062 dimensionedScalar nuInf_; 00063 dimensionedScalar m_; 00064 dimensionedScalar n_; 00065 00066 volScalarField nu_; 00067 00068 // Private Member Functions 00069 00070 //- Calculate and return the laminar viscosity 00071 tmp<volScalarField> calcNu() const; 00072 00073 00074 public: 00075 00076 //- Runtime type information 00077 TypeName("CrossPowerLaw"); 00078 00079 00080 // Constructors 00081 00082 //- Construct from components 00083 CrossPowerLaw 00084 ( 00085 const word& name, 00086 const dictionary& viscosityProperties, 00087 const volVectorField& U, 00088 const surfaceScalarField& phi 00089 ); 00090 00091 00092 // Destructor 00093 00094 ~CrossPowerLaw() 00095 {} 00096 00097 00098 // Member Functions 00099 00100 //- Return the laminar viscosity 00101 tmp<volScalarField> nu() const 00102 { 00103 return nu_; 00104 } 00105 00106 //- Correct the laminar viscosity 00107 void correct() 00108 { 00109 nu_ = calcNu(); 00110 } 00111 00112 //- Read transportProperties dictionary 00113 bool read(const dictionary& viscosityProperties); 00114 }; 00115 00116 00117 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00118 00119 } // End namespace viscosityModels 00120 } // End namespace Foam 00121 00122 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00123 00124 #endif 00125 00126 // ************************ vim: set sw=4 sts=4 et: ************************ //
