absoluteEnthalpy.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    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.
 
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    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::absoluteEnthalpy
 
Group
    grpSpecieThermo
 
Description
    Thermodynamics mapping class to expose the absolute enthalpy functions.
 
\*---------------------------------------------------------------------------*/
 
#ifndef absoluteEnthalpy_H
#define absoluteEnthalpy_H
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                       Class absoluteEnthalpy Declaration
\*---------------------------------------------------------------------------*/
 
template<class Thermo>
class absoluteEnthalpy
{
 
public:
 
    // Constructors
 
        //- Construct
        absoluteEnthalpy()
        {}
 
 
    // Member Functions
 
        //- Return the instantiated type name
        static word typeName()
        {
            return "absoluteEnthalpy";
        }
 
        // Fundamental properties
 
            static word energyName()
            {
                return "ha";
            }
 
            // Heat capacity at constant pressure [J/(kg K)]
            scalar Cpv
            (
                const Thermo& thermo,
                const scalar p,
                const scalar T
            ) const
            {
                #ifdef __clang__
                // Using volatile to prevent compiler optimisations leading to
                // a sigfpe
                volatile const scalar cp = thermo.Cp(p, T);
                return cp;
                #else
                return thermo.Cp(p, T);
                #endif
            }
 
            //- Cp/Cp []
            scalar CpByCpv
            (
                const Thermo& thermo,
                const scalar p,
                const scalar T
            ) const
            {
                return 1;
            }
 
            // Absolute enthalpy [J/kg]
            scalar HE
            (
                const Thermo& thermo,
                const scalar p,
                const scalar T
            ) const
            {
                #ifdef __clang__
                // Using volatile to prevent compiler optimisations leading to
                // a sigfpe
                volatile const scalar ha = thermo.Ha(p, T);
                return ha;
                #else
                return thermo.Ha(p, T);
                #endif
            }
 
            //- Temperature from absolute enthalpy
            //  given an initial temperature T0
            scalar THE
            (
                const Thermo& thermo,
                const scalar h,
                const scalar p,
                const scalar T0
            ) const
            {
                #ifdef __clang__
                // Using volatile to prevent compiler optimisations leading to
                // a sigfpe
                volatile const scalar tha = thermo.THa(h, p, T0);
                return tha;
                #else
                return thermo.THa(h, p, T0);
                #endif
            }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //