/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2014-2016 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::COxidationIntrinsicRate

Description
    Intrinsic char surface reaction mndel

        C(s) + Sb*O2 -> CO2

    where Sb is the stoichiometry of the reaction

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

#ifndef COxidationIntrinsicRate_H
#define COxidationIntrinsicRate_H

#include "SurfaceReactionModel.H"

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

namespace Foam
{

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

// Forward class declarations
template<class CloudType>
class COxidationIntrinsicRate;

/*---------------------------------------------------------------------------*\
                   Class COxidationIntrinsicRate Declaration
\*---------------------------------------------------------------------------*/

template<class CloudType>
class COxidationIntrinsicRate
:
    public SurfaceReactionModel<CloudType>
{
    // Private data

        // Model constants

            //- Stoichiometry of reaction []
            const scalar Sb_;

            //- Mass diffusion limited rate constant
            const scalar C1_;

            //- Mean pore radius [m]
            const scalar rMean_;

            //- Char porosity [] = 1 - rho_apparent/rho_true
            const scalar theta_;

            //- Pre-exponential factor
            const scalar Ai_;

            //- Activation energy
            const scalar Ei_;

            //- Char specific internal area [m2/kg]
            const scalar Ag_;

            //- Pore tortuosity []; default to sqrt(2)
            const scalar tau_;


        // Addressing

            //- Cs positions in global/local lists
            label CsLocalId_;

            //- O2 position in global list
            label O2GlobalId_;

            //- CO2 positions in global list
            label CO2GlobalId_;


        // Local copies of thermo properties

            //- Molecular weight of C [kg/kmol]
            scalar WC_;

            //- Molecular weight of O2 [kg/kmol]
            scalar WO2_;

            //- Formation enthalpy for CO2 [J/kg]
            scalar HcCO2_;


public:

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


    // Constructors

        //- Construct from dictionary
        COxidationIntrinsicRate
        (
            const dictionary& dict,
            CloudType& owner
        );

        //- Construct copy
        COxidationIntrinsicRate
        (
            const COxidationIntrinsicRate<CloudType>& srm
        );

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


    //- Destructor
    virtual ~COxidationIntrinsicRate();


    // Member Functions

        //- Update surface reactions
        virtual scalar calculate
        (
            const scalar dt,
            const label celli,
            const scalar d,
            const scalar T,
            const scalar Tc,
            const scalar pc,
            const scalar rhoc,
            const scalar mass,
            const scalarField& YGas,
            const scalarField& YLiquid,
            const scalarField& YSolid,
            const scalarField& YMixture,
            const scalar N,
            scalarField& dMassGas,
            scalarField& dMassLiquid,
            scalarField& dMassSolid,
            scalarField& dMassSRCarrier
        ) const;
};


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

} // End namespace Foam

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

#ifdef NoRepository
    #include "COxidationIntrinsicRate.C"
#endif

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

#endif

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