1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2009 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
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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
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23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 \*---------------------------------------------------------------------------*/
27 #include "SyamlalViscosity.H"
28 #include "mathematicalConstants.H"
29 #include "addToRunTimeSelectionTable.H"
31 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
35 namespace kineticTheoryModels
37 defineTypeNameAndDebug(SyamlalViscosity, 0);
38 addToRunTimeSelectionTable(viscosityModel, SyamlalViscosity, dictionary);
43 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
45 Foam::kineticTheoryModels::SyamlalViscosity::SyamlalViscosity
47 const dictionary& dict
54 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
56 Foam::kineticTheoryModels::SyamlalViscosity::~SyamlalViscosity()
60 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
62 Foam::tmp<Foam::volScalarField> Foam::kineticTheoryModels::SyamlalViscosity::mua
64 const volScalarField& alpha,
65 const volScalarField& Theta,
66 const volScalarField& g0,
67 const dimensionedScalar& rhoa,
68 const dimensionedScalar& da,
69 const dimensionedScalar& e
72 const scalar sqrtPi = sqrt(mathematicalConstant::pi);
74 return rhoa*da*sqrt(Theta)*
76 (4.0/5.0)*sqr(alpha)*g0*(1.0 + e)/sqrtPi
77 + (1.0/15.0)*sqrtPi*g0*(1.0 + e)*(3.0*e - 1.0)*sqr(alpha)/(3.0 - e)
78 + (1.0/6.0)*alpha*sqrtPi/(3.0 - e)
83 // ************************************************************************* //