surfaceArrheniusReactionRate.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
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::surfaceArrheniusReactionRate
 
Description
    A modified Arrhenius reaction rate given by:
 
        k = (A * T^beta * exp(-Ta/T))*a
 
    Where a is the surface area per unit volume, the name of which is
    specified by the user.
 
SourceFiles
    surfaceArrheniusReactionRateI.H
 
\*---------------------------------------------------------------------------*/
 
#ifndef surfaceArrheniusReactionRate_H
#define surfaceArrheniusReactionRate_H
 
#include "ArrheniusReactionRate.H"
#include "speciesTable.H"
#include "volFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of friend functions and operators
 
class surfaceArrheniusReactionRate;
 
Ostream& operator<<(Ostream&, const surfaceArrheniusReactionRate&);
 
/*---------------------------------------------------------------------------*\
                Class surfaceArrheniusReactionRate Declaration
\*---------------------------------------------------------------------------*/
 
class surfaceArrheniusReactionRate
:
    public ArrheniusReactionRate
{
    // Private Data
 
        //- Name of the surface area per unit volume field
        const word AvName_;
 
        //- Reference to the object registry
        const objectRegistry& ob_;
 
        //- The surface area per unit volume field
        mutable tmp<volScalarField::Internal> tAv_;
 
 
public:
 
    // Constructors
 
        //- Construct from dictionary
        inline surfaceArrheniusReactionRate
        (
            const speciesTable& species,
            const objectRegistry& ob,
            const dictionary& dict
        );
 
 
    // Member Functions
 
        //- Return the type name
        static word type()
        {
            return "surfaceArrhenius";
        }
 
        //- 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 surfaceArrheniusReactionRate&
        );
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "surfaceArrheniusReactionRateI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //