1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
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
13 the Free Software Foundation, either version 3 of the License, or
14 (at your 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, see <http://www.gnu.org/licenses/>.
24 \*---------------------------------------------------------------------------*/
26 #include "SyamlalViscosity.H"
27 #include "mathematicalConstants.H"
28 #include "addToRunTimeSelectionTable.H"
30 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
34 namespace kineticTheoryModels
36 defineTypeNameAndDebug(SyamlalViscosity, 0);
37 addToRunTimeSelectionTable(viscosityModel, SyamlalViscosity, dictionary);
42 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
44 Foam::kineticTheoryModels::SyamlalViscosity::SyamlalViscosity
46 const dictionary& dict
53 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
55 Foam::kineticTheoryModels::SyamlalViscosity::~SyamlalViscosity()
59 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
61 Foam::tmp<Foam::volScalarField> Foam::kineticTheoryModels::SyamlalViscosity::mua
63 const volScalarField& alpha,
64 const volScalarField& Theta,
65 const volScalarField& g0,
66 const dimensionedScalar& rhoa,
67 const dimensionedScalar& da,
68 const dimensionedScalar& e
71 const scalar sqrtPi = sqrt(constant::mathematical::pi);
73 return rhoa*da*sqrt(Theta)*
75 (4.0/5.0)*sqr(alpha)*g0*(1.0 + e)/sqrtPi
76 + (1.0/15.0)*sqrtPi*g0*(1.0 + e)*(3.0*e - 1.0)*sqr(alpha)/(3.0 - e)
77 + (1.0/6.0)*alpha*sqrtPi/(3.0 - e)
82 // ************************************************************************* //