StandardChemistryModel.H

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License
    This file is part of OpenFOAM.
 
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    You should have received a copy of the GNU General Public License
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Class
    Foam::StandardChemistryModel
 
Description
    Extends base chemistry model by adding a thermo package, and ODE functions.
    Introduces chemistry equation system and evaluation of chemical source
    terms.
 
SourceFiles
    StandardChemistryModelI.H
    StandardChemistryModel.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef StandardChemistryModel_H
#define StandardChemistryModel_H
 
#include "BasicChemistryModel.H"
#include "Reaction.H"
#include "ODESystem.H"
#include "volFields.H"
#include "simpleMatrix.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of classes
class fvMesh;
 
/*---------------------------------------------------------------------------*\
                      Class StandardChemistryModel Declaration
\*---------------------------------------------------------------------------*/
 
template<class ReactionThermo, class ThermoType>
class StandardChemistryModel
:
    public BasicChemistryModel<ReactionThermo>,
    public ODESystem
{
    // Private Member Functions
 
        //- Solve the reaction system for the given time step
        //  of given type and return the characteristic time
        template<class DeltaTType>
        scalar solve(const DeltaTType& deltaT);
 
        //- No copy construct
        StandardChemistryModel
        (
            const StandardChemistryModel<ReactionThermo, ThermoType>&
        ) = delete;
 
        //- No copy assignment
        void operator=
        (
            const StandardChemistryModel<ReactionThermo, ThermoType>&
        ) = delete;
 
 
protected:
 
    typedef ThermoType thermoType;
 
 
    // Protected data
 
        //- Reference to the field of specie mass fractions
        PtrList<volScalarField>& Y_;
 
        //- Reactions
        const PtrList<Reaction<ThermoType>>& reactions_;
 
        //- Thermodynamic data of the species
        const PtrList<ThermoType>& specieThermo_;
 
        //- Number of species
        label nSpecie_;
 
        //- Number of reactions
        label nReaction_;
 
        //- Temperature below which the reaction rates are assumed 0
        scalar Treact_;
 
        //- List of reaction rate per specie [kg/m3/s]
        PtrList<volScalarField::Internal> RR_;
 
        //- Temporary concentration field
        mutable scalarField c_;
 
        //- Temporary rate-of-change of concentration field
        mutable scalarField dcdt_;
 
 
    // Protected Member Functions
 
        //- Write access to chemical source terms
        //  (e.g. for multi-chemistry model)
        inline PtrList<volScalarField::Internal>& RR();
 
 
public:
 
    //- Runtime type information
    TypeName("standard");
 
 
    // Constructors
 
        //- Construct from thermo
        StandardChemistryModel(ReactionThermo& thermo);
 
 
    //- Destructor
    virtual ~StandardChemistryModel();
 
 
    // Member Functions
 
        //- The reactions
        inline const PtrList<Reaction<ThermoType>>& reactions() const;
 
        //- Thermodynamic data of the species
        inline const PtrList<ThermoType>& specieThermo() const;
 
        //- The number of species
        virtual inline label nSpecie() const;
 
        //- The number of reactions
        virtual inline label nReaction() const;
 
        //- Temperature below which the reaction rates are assumed 0
        inline scalar Treact() const;
 
        //- Temperature below which the reaction rates are assumed 0
        inline scalar& Treact();
 
        //- dc/dt = omega, rate of change in concentration, for each species
        virtual void omega
        (
            const scalarField& c,
            const scalar T,
            const scalar p,
            scalarField& dcdt
        ) const;
 
        //- Return the reaction rate for reaction r and the reference
        //  species and characteristic times
        virtual scalar omega
        (
            const Reaction<ThermoType>& r,
            const scalarField& c,
            const scalar T,
            const scalar p,
            scalar& pf,
            scalar& cf,
            label& lRef,
            scalar& pr,
            scalar& cr,
            label& rRef
        ) const;
 
 
        //- Return the reaction rate for iReaction and the reference
        //  species and characteristic times
        virtual scalar omegaI
        (
            label iReaction,
            const scalarField& c,
            const scalar T,
            const scalar p,
            scalar& pf,
            scalar& cf,
            label& lRef,
            scalar& pr,
            scalar& cr,
            label& rRef
        ) const;
 
        //- Calculates the reaction rates
        virtual void calculate();
 
 
        // Chemistry model functions (overriding abstract functions in
        // basicChemistryModel.H)
 
            //- Return const access to the chemical source terms for specie, i
            inline const volScalarField::Internal& RR
            (
                const label i
            ) const;
 
            //- Return non const access to chemical source terms [kg/m3/s]
            virtual volScalarField::Internal& RR
            (
                const label i
            );
 
            //- Return reaction rate of the speciei in reactionI
            virtual tmp<volScalarField::Internal> calculateRR
            (
                const label reactionI,
                const label speciei
            ) const;
 
            //- Solve the reaction system for the given time step
            //  and return the characteristic time
            virtual scalar solve(const scalar deltaT);
 
            //- Solve the reaction system for the given time step
            //  and return the characteristic time
            virtual scalar solve(const scalarField& deltaT);
 
            //- Return the chemical time scale
            virtual tmp<volScalarField> tc() const;
 
            //- Return the heat release rate [kg/m/s3]
            virtual tmp<volScalarField> Qdot() const;
 
 
        // ODE functions (overriding abstract functions in ODE.H)
 
            //- Number of ODE's to solve
            inline virtual label nEqns() const;
 
            virtual void derivatives
            (
                const scalar t,
                const scalarField& c,
                scalarField& dcdt
            ) const;
 
            virtual void jacobian
            (
                const scalar t,
                const scalarField& c,
                scalarField& dcdt,
                scalarSquareMatrix& dfdc
            ) const;
 
            virtual void solve
            (
                scalarField &c,
                scalar& T,
                scalar& p,
                scalar& deltaT,
                scalar& subDeltaT
            ) const = 0;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "StandardChemistryModelI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "StandardChemistryModel.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //