initial commit for version 1.6.x patch release
[OpenFOAM-1.6.x.git] / applications / solvers / multiphase / twoPhaseEulerFoam / kineticTheoryModels / viscosityModel / Syamlal / SyamlalViscosity.C
blob28c2c56b07357f46e4d7a24faaf2c0da8611d98f
1 /*---------------------------------------------------------------------------*\
2   =========                 |
3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
4    \\    /   O peration     |
5     \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
6      \\/     M anipulation  |
7 -------------------------------------------------------------------------------
8 License
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
19     for more details.
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 "SyamlalViscosity.H"
28 #include "mathematicalConstants.H"
29 #include "addToRunTimeSelectionTable.H"
31 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
33 namespace Foam
35 namespace kineticTheoryModels
37     defineTypeNameAndDebug(SyamlalViscosity, 0);
38     addToRunTimeSelectionTable(viscosityModel, SyamlalViscosity, dictionary);
43 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
45 Foam::kineticTheoryModels::SyamlalViscosity::SyamlalViscosity
47     const dictionary& dict
50     viscosityModel(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
70 ) const
72     const scalar sqrtPi = sqrt(mathematicalConstant::pi);
74     return rhoa*da*sqrt(Theta)*
75     (
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)
79     );
83 // ************************************************************************* //