COxidationHurtMitchell.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
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
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    for more details.
 
    You should have received a copy of the GNU General Public License
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Class
    Foam::COxidationHurtMitchell
 
Description
    Char oxidation model given by Hurt and Mitchell:
 
    Based on the reference:
        Hurt R. and Mitchell R., "Unified high-temperature char combustion
        kinetics for a suite of coals of various rank", 24th Symposium in
        Combustion, The Combustion Institute, 1992, p 1243-1250
 
    Model specifies the rate of char combustion.
 
        C(s) + Sb*O2 -> CO2
 
    where Sb is the stoichiometry of the reaction
 
    Model validity:
        Gas temperature: Tc > 1500 K
        Particle sizes:  75 um -> 200 um
        Pox > 0.3 atm
 
\*---------------------------------------------------------------------------*/
 
#ifndef COxidationHurtMitchell_H
#define COxidationHurtMitchell_H
 
#include "SurfaceReactionModel.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward class declarations
template<class CloudType>
class COxidationHurtMitchell;
 
/*---------------------------------------------------------------------------*\
                  Class COxidationHurtMitchell Declaration
\*---------------------------------------------------------------------------*/
 
template<class CloudType>
class COxidationHurtMitchell
:
    public SurfaceReactionModel<CloudType>
{
    // Private data
 
        // Model constants
 
            //- Stoichiometry of reaction
            const scalar Sb_;
 
 
        // Addressing
 
            //- Cs position in global/local lists
            label CsLocalId_;
 
            //- Ash position in global/local lists
            label ashLocalId_;
 
            //- 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_;
 
            //- Heat of reaction [J/kg] (optional)
            scalar heatOfReaction_;
 
 
public:
 
    //- Runtime type information
    TypeName("COxidationHurtMitchell");
 
 
    // Constructors
 
        //- Construct from dictionary
        COxidationHurtMitchell
        (
            const dictionary& dict,
            CloudType& owner
        );
 
        //- Construct copy
        COxidationHurtMitchell
        (
            const COxidationHurtMitchell<CloudType>& srm
        );
 
        //- Construct and return a clone
        virtual autoPtr<SurfaceReactionModel<CloudType> > clone() const
        {
            return autoPtr<SurfaceReactionModel<CloudType> >
            (
                new COxidationHurtMitchell<CloudType>(*this)
            );
        }
 
 
    //- Destructor
    virtual ~COxidationHurtMitchell();
 
 
    // 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 "COxidationHurtMitchell.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //