nonEquilibrium.H

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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
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Class
    Foam::TimeScaleModels::nonEquilibrium
 
Description
    Non-Equlibrium 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
 
// ************************************************************************* //