1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2008 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
11 OpenFOAM is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by the
13 Free Software Foundation; either version 2 of the License, or (at your
14 option) any later version.
16 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 You should have received a copy of the GNU General Public License
22 along with OpenFOAM; if not, write to the Free Software Foundation,
23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 \*---------------------------------------------------------------------------*/
27 #include "Smagorinsky2.H"
28 #include "addToRunTimeSelectionTable.H"
30 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
34 namespace incompressible
39 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
41 defineTypeNameAndDebug(Smagorinsky2, 0);
42 addToRunTimeSelectionTable(LESModel, Smagorinsky2, dictionary);
44 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
46 Smagorinsky2::Smagorinsky2
48 const volVectorField& U,
49 const surfaceScalarField& phi,
50 transportModel& transport
53 LESModel(typeName, U, phi, transport),
54 Smagorinsky(U, phi, transport),
58 dimensioned<scalar>::lookupOrAddToDict
70 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
72 // Evaluate B (from the definition of an eddy viscosity model) and
75 tmp<volSymmTensorField> Smagorinsky2::B() const
77 volSymmTensorField D = dev(symm(fvc::grad(U())));
79 return (((2.0/3.0)*I)*k() - 2.0*nuSgs_*D - (2.0*cD2_)*delta()*(D&D));
83 tmp<fvVectorMatrix> Smagorinsky2::divDevBeff
88 volTensorField gradU = fvc::grad(U);
90 volSymmTensorField aniNuEff
93 I*nuEff() + cD2_*delta()*symm(gradU)
98 - fvm::laplacian(aniNuEff, U) - fvc::div(nuEff()*dev(fvc::grad(U)().T()))
103 bool Smagorinsky2::read()
105 if (Smagorinsky::read())
107 cD2.readIfPresent(coeffDict());
118 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
120 } // End namespace LESModels
121 } // End namespace incompressible
122 } // End namespace Foam
124 // ************************************************************************* //