hPowerThermo.H

Go to the documentation of this file.

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2012-2017 OpenFOAM Foundation
-------------------------------------------------------------------------------
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.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    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::hPowerThermo
 
Group
    grpSpecieThermo
 
Description
    Power-function based thermodynamics package templated on EquationOfState.
 
    In this thermodynamics package the heat capacity is a simple power of
    temperature:
 
        Cp(T) = c0*(T/Tref)^n0;
 
    which is particularly suitable for solids.
 
SourceFiles
    hPowerThermoI.H
    hPowerThermo.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef hPowerThermo_H
#define hPowerThermo_H
 
#include "scalar.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of friend functions and operators
 
template<class EquationOfState> class hPowerThermo;
 
template<class EquationOfState>
inline hPowerThermo<EquationOfState> operator+
(
    const hPowerThermo<EquationOfState>&,
    const hPowerThermo<EquationOfState>&
);
 
template<class EquationOfState>
inline hPowerThermo<EquationOfState> operator*
(
    const scalar,
    const hPowerThermo<EquationOfState>&
);
 
 
template<class EquationOfState>
inline hPowerThermo<EquationOfState> operator==
(
    const hPowerThermo<EquationOfState>&,
    const hPowerThermo<EquationOfState>&
);
 
 
template<class EquationOfState>
Ostream& operator<<
(
    Ostream&,
    const hPowerThermo<EquationOfState>&
);
 
 
/*---------------------------------------------------------------------------*\
                         Class hPowerThermo Declaration
\*---------------------------------------------------------------------------*/
 
template<class EquationOfState>
class hPowerThermo
:
    public EquationOfState
{
    // Private data
 
        scalar c0_;
        scalar n0_;
        scalar Tref_;
        scalar Hf_;
 
 
    // Private Member Functions
 
        //- Check given temperature is within the range of the fitted coeffs
        inline void checkT(const scalar T) const;
 
        //- Construct from components
        inline hPowerThermo
        (
            const EquationOfState& st,
            const scalar c0,
            const scalar n0,
            const scalar Tref,
            const scalar Hf
        );
 
 
public:
 
    // Constructors
 
        //- Construct from dictionary
        hPowerThermo(const dictionary&);
 
        //- Construct as a named copy
        inline hPowerThermo
        (
            const word&,
            const hPowerThermo&
        );
 
         //- Construct and return a clone
        inline autoPtr<hPowerThermo> clone() const;
 
        //- Selector from dictionary
        inline static autoPtr<hPowerThermo> New(const dictionary& dict);
 
 
    // Member Functions
 
        //- Return the instantiated type name
        static word typeName()
        {
            return "hPower<" + EquationOfState::typeName() + '>';
        }
 
        //- Limit the temperature to be in the range Tlow_ to Thigh_
        inline scalar limit(const scalar T) const;
 
 
        // Fundamental properties
 
            //- Heat capacity at constant pressure [J/(kg K)]
            inline scalar Cp(const scalar p, const scalar T) const;
 
            //- Absolute Enthalpy [J/kg]
            inline scalar Ha(const scalar p, const scalar T) const;
 
            //- Sensible enthalpy [J/kg]
            inline scalar Hs(const scalar p, const scalar T) const;
 
            //- Chemical enthalpy [J/kg]
            inline scalar Hc() const;
 
            //- Entropy [J/(kg K)]
            inline scalar S(const scalar p, const scalar T) const;
 
 
            #include "HtoEthermo.H"
 
 
        // Derivative term used for Jacobian
 
            //- Derivative of Gibbs free energy w.r.t. temperature
            inline scalar dGdT(const scalar p, const scalar T) const;
 
            //- Temperature derivative of heat capacity at constant pressure
            inline scalar dCpdT(const scalar p, const scalar T) const;
 
 
 
    // Member operators
 
        inline void operator+=(const hPowerThermo&);
 
 
    // Friend operators
 
        friend hPowerThermo operator+ <EquationOfState>
        (
            const hPowerThermo&,
            const hPowerThermo&
        );
 
        friend hPowerThermo operator* <EquationOfState>
        (
            const scalar,
            const hPowerThermo&
        );
 
 
        friend hPowerThermo operator== <EquationOfState>
        (
            const hPowerThermo&,
            const hPowerThermo&
        );
 
 
    // Ostream Operator
 
        friend Ostream& operator<< <EquationOfState>
        (
            Ostream&,
            const hPowerThermo&
        );
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "hPowerThermoI.H"
    #include "hPowerThermo.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //