liquidProperties.H

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    Copyright (C) 2019 OpenCFD Ltd.
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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
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    for more details.
 
    You should have received a copy of the GNU General Public License
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Class
    Foam::liquidProperties
 
Description
    The thermophysical properties of a liquid
 
SourceFiles
    liquidProperties.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef liquidProperties_H
#define liquidProperties_H
 
#include "thermophysicalProperties.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                    Class liquidProperties Declaration
\*---------------------------------------------------------------------------*/
 
class liquidProperties
:
    public thermophysicalProperties
{
    // Private data
 
        //- Critical temperature [K]
        scalar Tc_;
 
        //- Critical pressure [Pa]
        scalar Pc_;
 
        //- Critical volume [m^3/kmol]
        scalar Vc_;
 
        //- Critical compressibility factor []
        scalar Zc_;
 
        //- Triple point temperature [K]
        scalar Tt_;
 
        //- Triple point pressure [Pa]
        scalar Pt_;
 
        //- Normal boiling temperature [K]
        scalar Tb_;
 
        //- Dipole moment []
        scalar dipm_;
 
        //- Pitzer's accentric factor []
        scalar omega_;
 
        //- Solubility parameter [(J/m^3)^0.5]
        scalar delta_;
 
 
public:
 
    TypeName("liquid");
 
 
    // Declare run-time constructor selection tables
 
        declareRunTimeSelectionTable
        (
            autoPtr,
            liquidProperties,
            ,
            (),
            ()
        );
 
        declareRunTimeSelectionTable
        (
            autoPtr,
            liquidProperties,
            dictionary,
            (const dictionary& dict),
            (dict)
        );
 
 
    // Constructors
 
        //- Construct from components
        liquidProperties
        (
            scalar W,
            scalar Tc,
            scalar Pc,
            scalar Vc,
            scalar Zc,
            scalar Tt,
            scalar Pt,
            scalar Tb,
            scalar dipm,
            scalar omega,
            scalar delta
        );
 
        //- Construct from dictionary
        liquidProperties(const dictionary& dict);
 
        //- Construct and return clone
        virtual autoPtr<liquidProperties> clone() const = 0;
 
 
    // Selectors
 
        //- Return a pointer to a new liquidProperties created from name
        static autoPtr<liquidProperties> New(const word& name);
 
        //- Return a pointer to a new liquidProperties created from dictionary
        static autoPtr<liquidProperties> New(const dictionary& dict);
 
 
    //- Destructor
    virtual ~liquidProperties() = default;
 
 
    // Static data
 
        //- Is the equation of state is incompressible i.e. rho != f(p)
        static const bool incompressible = true;
 
        //- Is the equation of state is isochoric i.e. rho = const
        static const bool isochoric = false;
 
 
    // Member Functions
 
        // Physical constants which define the specie
 
            //- No of moles of this species in mixture
            //  Note Mixing of liquidProperties is not currently supported
            //  so Y = 1
            inline scalar Y() const;
 
            //- Critical temperature [K]
            inline scalar Tc() const;
 
            //- Critical pressure [Pa]
            inline scalar Pc() const;
 
            //- Critical volume [m^3/kmol]
            inline scalar Vc() const;
 
            //- Critical compressibility factor
            inline scalar Zc() const;
 
            //- Triple point temperature [K]
            inline scalar Tt() const;
 
            //- Triple point pressure [Pa]
            inline scalar Pt() const;
 
            //- Normal boiling temperature [K]
            inline scalar Tb() const;
 
            //- Dipole moment []
            inline scalar dipm() const;
 
            //- Pitzer's acentric factor []
            inline scalar omega() const;
 
            //- Solubility parameter [(J/m^3)^(1/2)]
            inline scalar delta() const;
 
            //- Limit temperature to be within the range
            inline scalar limit(const scalar T) const;
 
 
        // Fundamental equation of state properties
 
            //- Liquid compressibility rho/p [s^2/m^2]
            //  Note: currently it is assumed the liquid is incompressible
            inline scalar psi(scalar p, scalar T) const;
 
            //- Return (Cp - Cv) [J/(kg K]
            //  Note: currently it is assumed the liquid is incompressible
            //  so CpMCv = 0
            inline scalar CpMCv(scalar p, scalar T) const;
 
 
        // Fundamental thermodynamic properties
 
            //- 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)]
            scalar S(const scalar p, const scalar T) const;
 
 
        // Physical properties
 
            //- Vapour pressure [Pa]
            virtual scalar pv(scalar p, scalar T) const = 0;
 
            //- Heat of vapourisation [J/kg]
            virtual scalar hl(scalar p, scalar T) const = 0;
 
            //- Liquid enthalpy [J/kg] - reference to 298.15 K
            virtual scalar h(scalar p, scalar T) const = 0;
 
            //- Vapour heat capacity [J/(kg K)]
            virtual scalar Cpg(scalar p, scalar T) const = 0;
 
            //- Liquid viscosity [Pa s]
            virtual scalar mu(scalar p, scalar T) const = 0;
 
            //- Vapour viscosity [Pa s]
            virtual scalar mug(scalar p, scalar T) const = 0;
 
            //- Liquid thermal conductivity  [W/(m K)]
            virtual scalar kappa(scalar p, scalar T) const = 0;
 
            //- Liquid thermal diffusivity of enthalpy [kg/ms]
            inline scalar alphah(const scalar p, const scalar T) const;
 
            //- Vapour thermal conductivity  [W/(m K)]
            virtual scalar kappag(scalar p, scalar T) const = 0;
 
            //- Surface tension [N/m]
            virtual scalar sigma(scalar p, scalar T) const = 0;
 
            //- Vapour diffusivity [m2/s]
            virtual scalar D(scalar p, scalar T) const = 0;
 
            //- Vapour diffusivity [m2/s] with specified binary pair
            virtual scalar D(scalar p, scalar T, scalar Wb) const = 0;
 
            //- Invert the vapour pressure relationship to retrieve the
            //  boiling temperature as a function of pressure
            virtual scalar pvInvert(scalar p) const;
 
 
    // I-O
 
        //- Read and set the properties present it the given dictionary
        void readIfPresent(const dictionary& dict);
 
        //- Read and set the function coefficients
        //  if present it the given dictionary
        template<class Func>
        inline void readIfPresent
        (
            Func& f,
            const word& name,
            const dictionary& dict
        );
 
        //- Read and set the function coefficients
        //  if present it the given dictionary
        template<class Liquid>
        inline void readIfPresent(Liquid& l, const dictionary& dict);
 
        //- Write the function coefficients
        virtual void writeData(Ostream& os) const = 0;
 
        //- Write the data for each of the property functions
        template<class Liquid>
        inline void writeData(const Liquid& l, Ostream& os) const;
 
        //- Ostream Operator
        friend Ostream& operator<<(Ostream& os, const liquidProperties& l);
};
 
 
Ostream& operator<<(Ostream& os, const liquidProperties& l);
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "liquidPropertiesI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //