thermo.H

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License
    This file is part of OpenFOAM.
 
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    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
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::species::thermo
 
Description
    Basic thermodynamics type based on the use of fitting functions for
    cp, h, s obtained from the template argument type thermo.  All other
    properties are derived from these primitive functions.
 
SourceFiles
    thermoI.H
    thermo.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef thermo_H
#define thermo_H
 
#include "thermodynamicConstants.H"
using namespace Foam::constant::thermodynamic;
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace species
{
 
// Forward declaration of friend functions and operators
 
template<class Thermo, template<class> class Type> class thermo;
 
template<class Thermo, template<class> class Type>
inline thermo<Thermo, Type> operator+
(
    const thermo<Thermo, Type>&,
    const thermo<Thermo, Type>&
);
 
template<class Thermo, template<class> class Type>
inline thermo<Thermo, Type> operator*
(
    const scalar,
    const thermo<Thermo, Type>&
);
 
template<class Thermo, template<class> class Type>
inline thermo<Thermo, Type> operator==
(
    const thermo<Thermo, Type>&,
    const thermo<Thermo, Type>&
);
 
template<class Thermo, template<class> class Type>
Ostream& operator<<
(
    Ostream&,
    const thermo<Thermo, Type>&
);
 
 
/*---------------------------------------------------------------------------*\
                           Class thermo Declaration
\*---------------------------------------------------------------------------*/
 
template<class Thermo, template<class> class Type>
class thermo
:
    public Thermo,
    public Type<thermo<Thermo, Type>>
{
    // Private Data
 
        //- Convergence tolerance of energy -> temperature inversion functions
        static const scalar tol_;
 
        //- Max number of iterations in energy->temperature inversion functions
        static const int maxIter_;
 
 
public:
 
    // Public Typedefs
 
        //- The thermodynamics of the individual species'
        typedef thermo<Thermo, Type> thermoType;
 
 
    // Constructors
 
        //- Construct from components
        inline thermo(const Thermo& sp);
 
        //- Construct from name and dictionary
        thermo(const word& name, const dictionary& dict);
 
        //- Construct as named copy
        inline thermo(const word& name, const thermo&);
 
 
    // Member Functions
 
        //- Return the instantiated type name
        static word typeName()
        {
            return
                  Thermo::typeName() + ','
                + Type<thermo<Thermo, Type>>::typeName();
        }
 
        //- Return true if energy type is enthalpy
        static inline bool enthalpy();
 
        //- Name of Enthalpy/Internal energy
        static inline word heName();
 
 
        // Fundamental properties
        // (These functions must be provided in derived types)
 
            // Heat capacity at constant pressure [J/kg/K]
            // inline scalar Cp(const scalar p, const scalar T) const;
 
            // Sensible enthalpy [J/kg]
            // inline scalar hs(const scalar p, const scalar T) const;
 
            // Enthalpy of formation [J/kg]
            // inline scalar hf() const;
 
            // Absolute enthalpy [J/kg]
            // inline scalar ha(const scalar p, const scalar T) const;
 
            // Heat capacity at constant volume [J/kg/K]
            // inline scalar Cv(const scalar p, const scalar T) const;
 
            // Sensible internal energy [J/kg]
            // inline scalar es(const scalar p, const scalar T) const;
 
            // Absolute internal energy [J/kg]
            // inline scalar ea(const scalar p, const scalar T) const;
 
            // Entropy [J/kg/K]
            // inline scalar s(const scalar p, const scalar T) const;
 
 
        // Derived properties
 
            //- Heat capacity at constant pressure/volume [J/kg/K]
            inline scalar Cpv(const scalar p, const scalar T) const;
 
            //- Gamma = Cp/Cv []
            inline scalar gamma(const scalar p, const scalar T) const;
 
            //- Enthalpy/Internal energy [J/kg]
            inline scalar he(const scalar p, const scalar T) const;
 
            //- Gibbs free energy [J/kg]
            inline scalar g(const scalar p, const scalar T) const;
 
            //- Helmholtz free energy [J/kg]
            inline scalar a(const scalar p, const scalar T) const;
 
 
        // Equilibrium reaction thermodynamics
 
            //- Equilibrium constant [] i.t.o fugacities
            //  = PIi(fi/Pstd)^nui
            inline scalar K(const scalar p, const scalar T) const;
 
            //- Equilibrium constant [] i.t.o. partial pressures
            //  = PIi(pi/Pstd)^nui
            //  For low pressures (where the gas mixture is near perfect) Kp = K
            inline scalar Kp(const scalar p, const scalar T) const;
 
            //- Equilibrium constant i.t.o. molar concentration
            //  = PIi(ci/cStd)^nui
            //  For low pressures (where the gas mixture is near perfect)
            //  Kc = Kp(Pstd/(RR*T))^nu
            inline scalar Kc(const scalar p, const scalar T) const;
 
            //- Equilibrium constant [] i.t.o. mole-fractions
            //  For low pressures (where the gas mixture is near perfect)
            //  Kx = Kp(Pstd/p)^nui
            inline scalar Kx(const scalar p, const scalar T) const;
 
            //- Equilibrium constant [] i.t.o. number of moles
            //  For low pressures (where the gas mixture is near perfect)
            //  Kn = Kp(n*Pstd/p)^nui where n = number of moles in mixture
            inline scalar Kn
            (
                const scalar p,
                const scalar T,
                const scalar n
            ) const;
 
 
        // Energy->temperature inversion functions
 
            //- Return the temperature corresponding to the value of the
            //  thermodynamic property f, given the function f = F(p, T)
            //  and dF(p, T)/dT
            template
            <
                class ThermoType,
                class FType,
                class dFdTType,
                class LimitType
            >
            inline static scalar T
            (
                const ThermoType& thermo,
                const scalar f,
                const scalar p,
                const scalar T0,
                FType F,
                dFdTType dFdT,
                LimitType limit,
                const bool diagnostics = false
            );
 
            //- Temperature from enthalpy or internal energy
            //  given an initial temperature T0
            inline scalar The
            (
                const scalar H,
                const scalar p,
                const scalar T0
            ) const;
 
            //- Temperature from sensible enthalpy given an initial T0
            inline scalar THs
            (
                const scalar hs,
                const scalar p,
                const scalar T0
            ) const;
 
            //- Temperature from absolute enthalpy
            //  given an initial temperature T0
            inline scalar Tha
            (
                const scalar H,
                const scalar p,
                const scalar T0
            ) const;
 
            //- Temperature from sensible internal energy
            //  given an initial temperature T0
            inline scalar Tes
            (
                const scalar E,
                const scalar p,
                const scalar T0
            ) const;
 
            //- Temperature from absolute internal energy
            //  given an initial temperature T0
            inline scalar Tea
            (
                const scalar E,
                const scalar p,
                const scalar T0
            ) const;
 
 
        // Derivative term used for Jacobian
 
            //- Derivative of B (according to Niemeyer et al.)
            //  w.r.t. temperature
            inline scalar dKcdTbyKc(const scalar p, const scalar T) const;
 
 
        // I-O
 
            //- Write to Ostream
            void write(Ostream& os) const;
 
 
    // Member Operators
 
        inline void operator+=(const thermo&);
        inline void operator*=(const scalar);
 
 
    // Friend operators
 
        friend thermo operator+ <Thermo, Type>
        (
            const thermo&,
            const thermo&
        );
 
        friend thermo operator* <Thermo, Type>
        (
            const scalar s,
            const thermo&
        );
 
        friend thermo operator== <Thermo, Type>
        (
            const thermo&,
            const thermo&
        );
 
 
    // Ostream Operator
 
        friend Ostream& operator<< <Thermo, Type>
        (
            Ostream&,
            const thermo&
        );
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace species
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "thermoI.H"
 
#ifdef NoRepository
    #include "thermo.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //