coefficientWilkeMulticomponentMixture.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::coefficientWilkeMulticomponentMixture
 
Description
    Thermophysical properties mixing class which applies mass-fraction weighted
    mixing to the thermodynamic coefficients and Wilke's equation to
    transport properties.
 
    Reference:
    \verbatim
        Wilke, C. R. (1950).
        A viscosity equation for gas mixtures.
        The journal of chemical physics, 18(4), 517-519.
    \endverbatim
 
SourceFiles
    coefficientWilkeMulticomponentMixture.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef coefficientWilkeMulticomponentMixture_H
#define coefficientWilkeMulticomponentMixture_H
 
#include "multicomponentMixture.H"
#include "scalarMatrices.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
            Class coefficientWilkeMulticomponentMixture Declaration
\*---------------------------------------------------------------------------*/
 
template<class ThermoType>
class coefficientWilkeMulticomponentMixture
:
    public multicomponentMixture<ThermoType>
{
 
public:
 
    class transportMixture
    {
        //- List of specie thermo
        const PtrList<ThermoType>& specieThermos_;
 
        //- List of molecular weights
        scalarList M_;
 
        //- Matrix of (4/sqrt(2.0))*sqrt(1 + M_[i]/M_[j])
        scalarSquareMatrix A_;
 
        //- Matrix of sqrt(M_[j]/M_[i])
        scalarSquareMatrix B_;
 
        //- List of mole fractions
        mutable scalarList X_;
 
        //- List of specie viscosities
        mutable scalarList mu_;
 
        //- List of Wilke weights
        mutable scalarList w_;
 
        //- mu cache state to avoid recalculation of the Wilke weight for kappa
        mutable bool muCached_;
 
        //- Calculate the Wilke weights and store in w_
        void WilkeWeights(const scalar p, const scalar T) const;
 
 
    public:
 
        friend class coefficientWilkeMulticomponentMixture;
 
        // Constructors
 
            transportMixture
            (
                const PtrList<ThermoType>& specieThermos
            );
 
 
        // Transport properties
 
            //- Dynamic viscosity [kg/m/s]
            scalar mu(const scalar p, const scalar T) const;
 
            //- Thermal conductivity [W/m/K]
            scalar kappa(const scalar p, const scalar T) const;
    };
 
 
public:
 
    //- Mixing type for thermodynamic properties
    typedef typename ThermoType::thermoType thermoMixtureType;
 
    //- Mixing type for transport properties
    typedef transportMixture transportMixtureType;
 
 
private:
 
    // Private Data
 
        //- Temporary storage for the cell/face mixture thermo data
        mutable thermoMixtureType mixture_;
 
        //- Mutable storage for the cell/face mixture transport data
        mutable transportMixtureType transportMixture_;
 
 
public:
 
    // Constructors
 
        //- Construct from dictionary, mesh and phase name
        coefficientWilkeMulticomponentMixture
        (
            const dictionary&,
            const fvMesh&,
            const word&
        );
 
        //- Disallow default bitwise copy construction
        coefficientWilkeMulticomponentMixture
        (
            const coefficientWilkeMulticomponentMixture<ThermoType>&
        ) = delete;
 
 
    //- Destructor
    virtual ~coefficientWilkeMulticomponentMixture()
    {}
 
 
    // Member Functions
 
        //- Return the instantiated type name
        static word typeName()
        {
            return
                "coefficientWilkeMulticomponentMixture<"
               + ThermoType::typeName() + '>';
        }
 
        const thermoMixtureType& cellThermoMixture(const label celli) const;
 
        const thermoMixtureType& patchFaceThermoMixture
        (
            const label patchi,
            const label facei
        ) const;
 
        const transportMixtureType& cellTransportMixture
        (
            const label celli
        ) const;
 
        const transportMixtureType& patchFaceTransportMixture
        (
            const label patchi,
            const label facei
        ) const;
 
        const transportMixtureType& cellTransportMixture
        (
            const label celli,
            const thermoMixtureType& thermoMixture
        ) const;
 
        const transportMixtureType& patchFaceTransportMixture
        (
            const label patchi,
            const label facei,
            const thermoMixtureType& thermoMixture
        ) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "coefficientWilkeMulticomponentMixture.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //