Commit a3f4fdd8 authored by Henry's avatar Henry
Browse files

thermodynamics: added new equation of state for incompressible flow

parent 1fe653ac
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
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/>.
\*---------------------------------------------------------------------------*/
#include "incompressible.H"
#include "IOstreams.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::incompressible::incompressible(Istream& is)
:
specie(is),
rho_(readScalar(is))
{
is.check("incompressible::incompressible(Istream& is)");
}
Foam::incompressible::incompressible(const dictionary& dict)
:
specie(dict),
rho_(readScalar(dict.lookup("rho")))
{}
// * * * * * * * * * * * * * * * Ostream Operator * * * * * * * * * * * * * //
Foam::Ostream& Foam::operator<<(Ostream& os, const incompressible& ico)
{
os << static_cast<const specie&>(ico)
<< token::SPACE << ico.rho_;
os.check("Ostream& operator<<(Ostream& os, const incompressible& st)");
return os;
}
// ************************************************************************* //
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
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::incompressible
Description
Incompressible gas/liquid equation of state.
SourceFiles
incompressibleI.H
incompressible.C
\*---------------------------------------------------------------------------*/
#ifndef incompressible_H
#define incompressible_H
#include "specie.H"
#include "autoPtr.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class incompressible Declaration
\*---------------------------------------------------------------------------*/
class incompressible
:
public specie
{
// Private data
//- Density
scalar rho_;
public:
// Constructors
//- Construct from components
inline incompressible(const specie& sp, const scalar rho);
//- Construct from Istream
incompressible(Istream&);
//- Construct from dictionary
incompressible(const dictionary& dict);
//- Construct as named copy
inline incompressible(const word& name, const incompressible&);
//- Construct and return a clone
inline autoPtr<incompressible> clone() const;
// Selector from Istream
inline static autoPtr<incompressible> New(Istream& is);
// Member functions
//- Return density [kg/m^3]
inline scalar rho(scalar p, scalar T) const;
//- Return compressibility rho/p [s^2/m^2]
inline scalar psi(scalar p, scalar T) const;
//- Return compression factor []
inline scalar Z(scalar p, scalar T) const;
// Member operators
inline void operator+=(const incompressible&);
inline void operator-=(const incompressible&);
inline void operator*=(const scalar);
// Friend operators
inline friend incompressible operator+
(
const incompressible&,
const incompressible&
);
inline friend incompressible operator-
(
const incompressible&,
const incompressible&
);
inline friend incompressible operator*
(
const scalar s,
const incompressible&
);
inline friend incompressible operator==
(
const incompressible&,
const incompressible&
);
// Ostream Operator
friend Ostream& operator<<(Ostream&, const incompressible&);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#include "incompressibleI.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
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/>.
\*---------------------------------------------------------------------------*/
#include "incompressible.H"
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
inline Foam::incompressible::incompressible
(
const specie& sp,
const scalar rho
)
:
specie(sp),
rho_(rho)
{}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
inline Foam::incompressible::incompressible
(
const word& name,
const incompressible& ico
)
:
specie(name, ico),
rho_(ico.rho_)
{}
inline Foam::autoPtr<Foam::incompressible>
Foam::incompressible::clone() const
{
return autoPtr<incompressible>(new incompressible(*this));
}
inline Foam::autoPtr<Foam::incompressible>
Foam::incompressible::New(Istream& is)
{
return autoPtr<incompressible>(new incompressible(is));
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
inline Foam::scalar Foam::incompressible::rho(scalar p, scalar T) const
{
return rho_;
}
inline Foam::scalar Foam::incompressible::psi(scalar, scalar T) const
{
return 0.0;
}
inline Foam::scalar Foam::incompressible::Z(scalar, scalar) const
{
return 0.0;
}
// * * * * * * * * * * * * * * * Member Operators * * * * * * * * * * * * * //
inline void Foam::incompressible::operator+=(const incompressible& ico)
{
scalar molr1 = this->nMoles();
specie::operator+=(ico);
molr1 /= this->nMoles();
scalar molr2 = ico.nMoles()/this->nMoles();
rho_ = molr1*rho_ + molr2*ico.rho_;
}
inline void Foam::incompressible::operator-=(const incompressible& ico)
{
scalar molr1 = this->nMoles();
specie::operator-=(ico);
molr1 /= this->nMoles();
scalar molr2 = ico.nMoles()/this->nMoles();
rho_ = molr1*rho_ - molr2*ico.rho_;
}
inline void Foam::incompressible::operator*=(const scalar s)
{
specie::operator*=(s);
}
// * * * * * * * * * * * * * * * Friend Operators * * * * * * * * * * * * * //
inline Foam::incompressible Foam::operator+
(
const incompressible& ico1,
const incompressible& ico2
)
{
scalar nMoles = ico1.nMoles() + ico2.nMoles();
scalar molr1 = ico1.nMoles()/nMoles;
scalar molr2 = ico2.nMoles()/nMoles;
return incompressible
(
static_cast<const specie&>(ico1)
+ static_cast<const specie&>(ico2),
molr1*ico1.rho_ + molr2*ico2.rho_
);
}
inline Foam::incompressible Foam::operator-
(
const incompressible& ico1,
const incompressible& ico2
)
{
scalar nMoles = ico1.nMoles() + ico2.nMoles();
scalar molr1 = ico1.nMoles()/nMoles;
scalar molr2 = ico2.nMoles()/nMoles;
return incompressible
(
static_cast<const specie&>(ico1)
- static_cast<const specie&>(ico2),
molr1*ico1.rho_ - molr2*ico2.rho_
);
}
inline Foam::incompressible Foam::operator*
(
const scalar s,
const incompressible& ico
)
{
return incompressible(s*static_cast<const specie&>(ico), ico.rho_);
}
inline Foam::incompressible Foam::operator==
(
const incompressible& ico1,
const incompressible& ico2
)
{
return ico2 - ico1;
}
// ************************************************************************* //
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