ArrheniusReactionRate.H

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License
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Class
    Foam::ArrheniusReactionRate

Description
    Arrhenius reaction rate given by:

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

SourceFiles
    ArrheniusReactionRateI.H

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

#ifndef ArrheniusReactionRate_H
#define ArrheniusReactionRate_H

#include "scalarField.H"
#include "typeInfo.H"

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

namespace Foam
{

// Forward declaration of friend functions and operators

class ArrheniusReactionRate;

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


/*---------------------------------------------------------------------------*\
                    Class ArrheniusReactionRate Declaration
\*---------------------------------------------------------------------------*/

class ArrheniusReactionRate
{
    // Private Data

        scalar A_;
        scalar beta_;
        scalar Ta_;


public:

    // Constructors

        //- Construct from components
        inline ArrheniusReactionRate
        (
            const scalar A,
            const scalar beta,
            const scalar Ta
        );

        //- Construct from dictionary
        inline ArrheniusReactionRate
        (
            const speciesTable& species,
            const dictionary& dict
        );


    // Member Functions

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

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

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

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

        //- The derivative of the rate w.r.t. temperature
        inline scalar ddT
        (
            const scalar p,
            const scalar T,
            const scalarField& c,
            const label li
        ) const;

        //- Is the rate a function of concentration?
        inline bool hasDdc() const;

        //- The derivative of the rate w.r.t. concentration
        inline void ddc
        (
            const scalar p,
            const scalar T,
            const scalarField& c,
            const label li,
            scalarField& ddc
        ) const;

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


    // Ostream Operator

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


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

} // End namespace Foam

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

#include "ArrheniusReactionRateI.H"

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

#endif

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