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 \*---------------------------------------------------------------------------*/
28 #include "addToRunTimeSelectionTable.H"
30 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
36 defineTypeNameAndDebug(Gulder, 0);
37 addToRunTimeSelectionTable(XiEqModel, Gulder, dictionary);
42 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
44 Foam::XiEqModels::Gulder::Gulder
46 const dictionary& XiEqProperties,
47 const hhuCombustionThermo& thermo,
48 const compressible::RASModel& turbulence,
49 const volScalarField& Su
52 XiEqModel(XiEqProperties, thermo, turbulence, Su),
53 XiEqCoef(readScalar(XiEqModelCoeffs_.lookup("XiEqCoef"))),
54 SuMin(0.01*Su.average())
58 // * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
60 Foam::XiEqModels::Gulder::~Gulder()
64 // * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
66 Foam::tmp<Foam::volScalarField> Foam::XiEqModels::Gulder::XiEq() const
68 volScalarField up = sqrt((2.0/3.0)*turbulence_.k());
69 const volScalarField& epsilon = turbulence_.epsilon();
71 volScalarField tauEta = sqrt(mag(thermo_.muu()/(thermo_.rhou()*epsilon)));
73 volScalarField Reta = up/
76 + dimensionedScalar("1e-8", up.dimensions(), 1e-8)
79 return 1.0 + XiEqCoef*sqrt(up/(Su_ + SuMin))*Reta;
83 bool Foam::XiEqModels::Gulder::read(const dictionary& XiEqProperties)
85 XiEqModel::read(XiEqProperties);
87 XiEqModelCoeffs_.lookup("XiEqCoef") >> XiEqCoef;
93 // ************************************************************************* //