phaseSurfaceArrheniusReactionRate.H

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License
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Class
    Foam::phaseSurfaceArrheniusReactionRate

Description
    A modified Arrhenius reaction rate given by:

        k = (A * T^beta * exp(-Ta/T))*a

    Where a is the phase surface area per unit volume. The name of the phase is
    specified by the user.

SourceFiles
    phaseSurfaceArrheniusReactionRateI.H

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

#ifndef phaseSurfaceArrheniusReactionRate_H
#define phaseSurfaceArrheniusReactionRate_H

#include "ArrheniusReactionRate.H"
#include "speciesTable.H"
#include "volFields.H"

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

namespace Foam
{

// Forward declaration of friend functions and operators

class phaseSurfaceArrheniusReactionRate;

Ostream& operator<<(Ostream&, const phaseSurfaceArrheniusReactionRate&);

/*---------------------------------------------------------------------------*\
                Class phaseSurfaceArrheniusReactionRate Declaration
\*---------------------------------------------------------------------------*/

class phaseSurfaceArrheniusReactionRate
:
    public ArrheniusReactionRate
{
    // Private Data

        //- Name of the phase
        const word phaseName_;

        //- Reference to the object registry
        const objectRegistry& ob_;

        //- Surface area per unit volume field
        mutable tmp<volScalarField> tA_;


public:

    // Constructors

        //- Construct from dictionary
        inline phaseSurfaceArrheniusReactionRate
        (
            const speciesTable& species,
            const objectRegistry& ob,
            const dictionary& dict
        );


    // Member Functions

        //- Return the type name
        static word type()
        {
            return "phaseSurfaceArrhenius";
        }

        //- Pre-evaluation hook
        inline void preEvaluate() const;

        //- Post-evaluation hook
        inline void postEvaluate() const;

        //- Evaluate the rate
        inline scalar operator()
        (
            const scalar p,
            const scalar T,
            const scalarField& c,
            const label li
        ) const;

        //- Evaluate the derivative
        inline scalar ddT
        (
            const scalar p,
            const scalar T,
            const scalarField& c,
            const label li
        ) const;

        //- Write to stream
        inline void write(Ostream& os) const;


    // Ostream Operator

        inline friend Ostream& operator<<
        (
            Ostream&,
            const phaseSurfaceArrheniusReactionRate&
        );
};


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

} // End namespace Foam

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

#include "phaseSurfaceArrheniusReactionRateI.H"

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

#endif

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