/*---------------------------------------------------------------------------*\
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    Copyright (C) 2014-2015 OpenFOAM Foundation
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License
    This file is part of OpenFOAM.

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    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

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Class
    Foam::JohnsonJacksonParticleThetaFvPatchScalarField

Description
    Robin condition for the particulate granular temperature.

    References:
    \verbatim
        "Multifluid Eulerian modeling of dense gas–solids fluidized bed
         hydrodynamics: Influence of the dissipation parameters"
        Reuge, N.,
        Chemical Engineering Science
        Volume 63, Issue 22, November 2008, pp. 5540-5551
    \endverbatim

    \verbatim
        "Frictional-collisional constitutive relations for granular materials,
         with application to plane shearing"
        Johnson, P.C., and Jackson, R.,
        Journal of Fluid Mechanics
        Volume 176, March 1987, pp. 67-93
    \endverbatim

SourceFiles
    JohnsonJacksonParticleThetaFvPatchScalarField.C

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

#ifndef JohnsonJacksonParticleThetaFvPatchScalarField_H
#define JohnsonJacksonParticleThetaFvPatchScalarField_H

#include "mixedFvPatchFields.H"

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

namespace Foam
{

/*---------------------------------------------------------------------------*\
        Class JohnsonJacksonParticleThetaFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/

class JohnsonJacksonParticleThetaFvPatchScalarField
:
    public mixedFvPatchScalarField
{
    // Private data

        //- Particle-wall restitution coefficient
        dimensionedScalar restitutionCoefficient_;

        //- Specularity coefficient
        dimensionedScalar specularityCoefficient_;


public:

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


    // Constructors

        //- Construct from patch and internal field
        JohnsonJacksonParticleThetaFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );

        //- Construct from patch, internal field and dictionary
        JohnsonJacksonParticleThetaFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );

        //- Construct by mapping onto a new patch
        JohnsonJacksonParticleThetaFvPatchScalarField
        (
            const JohnsonJacksonParticleThetaFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );

        //- Construct as copy
        JohnsonJacksonParticleThetaFvPatchScalarField
        (
            const JohnsonJacksonParticleThetaFvPatchScalarField&
        );

        //- Construct as copy setting internal field reference
        JohnsonJacksonParticleThetaFvPatchScalarField
        (
            const JohnsonJacksonParticleThetaFvPatchScalarField&,
            const DimensionedField<scalar, volMesh>&
        );

        //- Return a clone
        virtual tmp<fvPatchField<scalar>> clone() const
        {
            return fvPatchField<scalar>::Clone(*this);
        }

        //- Clone with an internal field reference
        virtual tmp<fvPatchField<scalar>> clone
        (
            const DimensionedField<scalar, volMesh>& iF
        ) const
        {
            return fvPatchField<scalar>::Clone(*this, iF);
        }


    // Member functions

        // Mapping functions

            //- Map (and resize as needed) from self given a mapping object
            virtual void autoMap
            (
                const fvPatchFieldMapper&
            );

            //- Reverse map the given fvPatchField onto this fvPatchField
            virtual void rmap
            (
                const fvPatchScalarField&,
                const labelList&
            );

        //- Update the coefficients
        virtual void updateCoeffs();

        //- Write
        virtual void write(Ostream&) const;
};


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

} // End namespace Foam

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

#endif

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