ArrheniusReactionRate.H

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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
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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
 
// ************************************************************************* //