nonEquilibrium.H

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License
    This file is part of OpenFOAM.

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Class
    Foam::TimeScaleModels::nonEquilibrium

Description
    Non-Equilibrium model for the time scale over which properties of a
    dispersed phase tend towards the mean value.

    Reference:
    \verbatim
        "An improved collision damping time for MP-PIC calculations of dense
        particle flows with applications to polydisperse sedimenting beds and
        colliding particle jets"
        P O'Rourke and D Snider
        Chemical Engineering Science
        Volume 65, Issue 22, Pages 6014-6028, November 2010
    \endverbatim

SourceFiles
    nonEquilibrium.C

\*---------------------------------------------------------------------------*/

#ifndef nonEquilibrium_H
#define nonEquilibrium_H

#include "TimeScaleModel.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace TimeScaleModels
{

/*---------------------------------------------------------------------------*\
                       Class nonEquilibrium Declaration
\*---------------------------------------------------------------------------*/

class nonEquilibrium
:
    public TimeScaleModel
{
public:

    //- Runtime type information
    TypeName("nonEquilibrium");


    //- Constructors

        //- Construct from components
        nonEquilibrium(const dictionary& dict);

        //- Construct a copy
        nonEquilibrium(const nonEquilibrium& hc);

        //- Construct and return a clone
        virtual autoPtr<TimeScaleModel> clone() const
        {
            return autoPtr<TimeScaleModel>
            (
                new nonEquilibrium(*this)
            );
        }


    //- Destructor
    virtual ~nonEquilibrium();


    //- Member Functions

        //- Time scale
        tmp<FieldField<Field, scalar>> oneByTau
        (
            const FieldField<Field, scalar>& alpha,
            const FieldField<Field, scalar>& r32,
            const FieldField<Field, scalar>& uSqr,
            const FieldField<Field, scalar>& f
        ) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace TimeScaleModels
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //