isotropic.C

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    Copyright (C) 2013-2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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#include "isotropic.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace TimeScaleModels
{
    defineTypeNameAndDebug(isotropic, 0);
 
    addToRunTimeSelectionTable
    (
        TimeScaleModel,
        isotropic,
        dictionary
    );
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::TimeScaleModels::isotropic::isotropic
(
    const dictionary& dict
)
:
    TimeScaleModel(dict)
{}
 
 
Foam::TimeScaleModels::isotropic::isotropic
(
    const isotropic& hc
)
:
    TimeScaleModel(hc)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::TimeScaleModels::isotropic::~isotropic()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::FieldField<Foam::Field, Foam::scalar>>
Foam::TimeScaleModels::isotropic::oneByTau
(
    const FieldField<Field, scalar>& alpha,
    const FieldField<Field, scalar>& r32,
    const FieldField<Field, scalar>& uSqr,
    const FieldField<Field, scalar>& f
) const
{
    static const scalar a =
        8.0*sqrt(2.0)/(5.0*constant::mathematical::pi)
       *0.25*(3.0 - e_)*(1.0 + e_);
 
    return a*f*alphaPacked_/max(alphaPacked_ - alpha, SMALL);
}
 
 
// ************************************************************************* //