perfectFluidI.H

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    Copyright (C) 2012-2017 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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    (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
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#include "perfectFluid.H"
#include "specie.H"
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
template<class Specie>
inline Foam::perfectFluid<Specie>::perfectFluid
(
    const Specie& sp,
    const scalar R,
    const scalar rho0
)
:
    Specie(sp),
    R_(R),
    rho0_(rho0)
{}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class Specie>
inline Foam::perfectFluid<Specie>::perfectFluid
(
    const word& name,
    const perfectFluid<Specie>& pf
)
:
    Specie(name, pf),
    R_(pf.R_),
    rho0_(pf.rho0_)
{}
 
 
template<class Specie>
inline Foam::autoPtr<Foam::perfectFluid<Specie>>
Foam::perfectFluid<Specie>::clone() const
{
    return autoPtr<perfectFluid<Specie>>::New(*this);
}
 
 
template<class Specie>
inline Foam::autoPtr<Foam::perfectFluid<Specie>>
Foam::perfectFluid<Specie>::New
(
    const dictionary& dict
)
{
    return autoPtr<perfectFluid<Specie>>::New(dict);
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::R() const
{
    return R_;
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::rho(scalar p, scalar T) const
{
    return rho0_ + p/(this->R()*T);
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::H(scalar p, scalar T) const
{
     return 0;
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::Cp(scalar p, scalar T) const
{
    return 0;
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::E(scalar p, scalar T) const
{
    return 0;
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::Cv(scalar p, scalar T) const
{
    return 0;
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::S(scalar p, scalar T) const
{
    return -this->R()*log(p/Pstd);
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::psi(scalar p, scalar T) const
{
    return 1.0/(this->R()*T);
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::Z(scalar p, scalar T) const
{
    return 1;
}
 
 
template<class Specie>
inline Foam::scalar Foam::perfectFluid<Specie>::CpMCv(scalar p, scalar T) const
{
    const scalar R = this->R();
    const scalar rho = this->rho(p, T);
 
    return R*sqr(p/(rho*R*T));
}
 
 
// * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //
 
template<class Specie>
inline void Foam::perfectFluid<Specie>::operator+=
(
    const perfectFluid<Specie>& pf
)
{
    scalar Y1 = this->Y();
    Specie::operator+=(pf);
 
    if (mag(this->Y()) > SMALL)
    {
        Y1 /= this->Y();
        const scalar Y2 = pf.Y()/this->Y();
 
        R_ = 1.0/(Y1/R_ + Y2/pf.R_);
        rho0_ = Y1*rho0_ + Y2*pf.rho0_;
    }
}
 
 
template<class Specie>
inline void Foam::perfectFluid<Specie>::operator*=(const scalar s)
{
    Specie::operator*=(s);
}
 
 
// * * * * * * * * * * * * * * * Friend Operators  * * * * * * * * * * * * * //
 
template<class Specie>
inline Foam::perfectFluid<Specie> Foam::operator+
(
    const perfectFluid<Specie>& pf1,
    const perfectFluid<Specie>& pf2
)
{
    Specie sp
    (
        static_cast<const Specie&>(pf1)
      + static_cast<const Specie&>(pf2)
    );
 
    if (mag(sp.Y()) < SMALL)
    {
        return perfectFluid<Specie>
        (
            sp,
            pf1.R_,
            pf1.rho0_
        );
    }
    else
    {
        const scalar Y1 = pf1.Y()/sp.Y();
        const scalar Y2 = pf2.Y()/sp.Y();
 
        return perfectFluid<Specie>
        (
            sp,
            1.0/(Y1/pf1.R_ + Y2/pf2.R_),
            Y1*pf1.rho0_ + Y2*pf2.rho0_
        );
    }
}
 
 
template<class Specie>
inline Foam::perfectFluid<Specie> Foam::operator*
(
    const scalar s,
    const perfectFluid<Specie>& pf
)
{
    return perfectFluid<Specie>
    (
        s*static_cast<const Specie&>(pf),
        pf.R_,
        pf.rho0_
    );
}
 
 
template<class Specie>
inline Foam::perfectFluid<Specie> Foam::operator==
(
    const perfectFluid<Specie>& pf1,
    const perfectFluid<Specie>& pf2
)
{
    Specie sp
    (
        static_cast<const Specie&>(pf1)
     == static_cast<const Specie&>(pf2)
    );
 
    const scalar Y1 = pf1.Y()/sp.Y();
    const scalar Y2 = pf2.Y()/sp.Y();
 
    return perfectFluid<Specie>
    (
        sp,
        1.0/(Y2/pf2.R_ - Y1/pf1.R_),
        Y2*pf2.rho0_ - Y1*pf1.rho0_
    );
}
 
 
// ************************************************************************* //