SyamlalViscosity.C

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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
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#include "SyamlalViscosity.H"
#include "mathematicalConstants.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace kineticTheoryModels
{
namespace viscosityModels
{
    defineTypeNameAndDebug(Syamlal, 0);
    addToRunTimeSelectionTable(viscosityModel, Syamlal, dictionary);
}
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::kineticTheoryModels::viscosityModels::Syamlal::Syamlal
(
    const dictionary& dict
)
:
    viscosityModel(dict)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::kineticTheoryModels::viscosityModels::Syamlal::~Syamlal()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField>
Foam::kineticTheoryModels::viscosityModels::Syamlal::nu
(
    const volScalarField& alpha1,
    const volScalarField& Theta,
    const volScalarField& g0,
    const volScalarField& rho1,
    const volScalarField& da,
    const dimensionedScalar& e
) const
{
    const scalar sqrtPi = sqrt(constant::mathematical::pi);
 
    return da*sqrt(Theta)*
    (
        (4.0/5.0)*sqr(alpha1)*g0*(1.0 + e)/sqrtPi
      + (1.0/15.0)*sqrtPi*g0*(1.0 + e)*(3.0*e - 1.0)*sqr(alpha1)/(3.0 - e)
      + (1.0/6.0)*alpha1*sqrtPi/(3.0 - e)
    );
}
 
 
// ************************************************************************* //