phaseSurfaceArrheniusReactionRate.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
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    You should have received a copy of the GNU General Public 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> tAv_;
 
 
public:
 
    // Constructors
 
        //- Construct from dictionary
        inline phaseSurfaceArrheniusReactionRate
        (
            const speciesTable& species,
            const objectRegistry& ob,
            const dimensionSet& dims,
            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
 
// ************************************************************************* //