PengRobinsonGas cubic equation of state for gases. More...

Inheritance diagram for PengRobinsonGas< Specie >:

Collaboration diagram for PengRobinsonGas< Specie >:

Public Member Functions
	PengRobinsonGas (const Specie &sp, const scalar &Tc, const scalar &Vc, const scalar &Zc, const scalar &Pc, const scalar &omega)
	Construct from components. More...

	PengRobinsonGas (const word &name, const dictionary &dict)
	Construct from name and dictionary. More...

	PengRobinsonGas (const word &name, const PengRobinsonGas &)
	Construct as named copy. More...

autoPtr< PengRobinsonGas >	clone () const
	Construct and return a clone. More...

scalar	rho (scalar p, scalar T) const
	Return density [kg/m^3]. More...

scalar	H (const scalar p, const scalar T) const
	Return enthalpy contribution [J/kg]. More...

scalar	Cp (scalar p, scalar T) const
	Return Cp contribution [J/(kg K]. More...

scalar	E (const scalar p, const scalar T) const
	Return internal energy contribution [J/kg]. More...

scalar	Cv (scalar p, scalar T) const
	Return Cv contribution [J/(kg K]. More...

scalar	Sp (const scalar p, const scalar T) const
	Return entropy contribution to the integral of Cp/T [J/kg/K]. More...

scalar	Sv (const scalar p, const scalar T) const
	Return entropy contribution to the integral of Cv/T [J/kg/K]. More...

scalar	psi (scalar p, scalar T) const
	Return compressibility [s^2/m^2]. More...

scalar	Z (scalar p, scalar T) const
	Return compression factor []. More...

scalar	CpMCv (scalar p, scalar T) const
	Return (Cp - Cv) [J/(kg K]. More...

scalar	alphav (const scalar p, const scalar T) const
	Return volumetric coefficient of thermal expansion [1/T]. More...

void	write (Ostream &os) const
	Write to Ostream. More...

void	operator+= (const PengRobinsonGas &)

void	operator*= (const scalar)

Static Public Member Functions
static word	typeName ()
	Return the instantiated type name. More...

Static Public Attributes
static const bool	incompressible = false
	Is the equation of state is incompressible i.e. rho != f(p) More...

static const bool	isochoric = false
	Is the equation of state is isochoric i.e. rho = const. More...

Friends
PengRobinsonGas	operator+ (const PengRobinsonGas &, const PengRobinsonGas &)

PengRobinsonGas	operator* (const scalar s, const PengRobinsonGas &)

PengRobinsonGas	operator== (const PengRobinsonGas &, const PengRobinsonGas &)

Ostream &	operator (Ostream &, const PengRobinsonGas &)

Detailed Description

template<class Specie>
class Foam::PengRobinsonGas< Specie >

PengRobinsonGas cubic equation of state for gases.

Coefficient mixing is very inaccurate and not supported, so this equation of state can only be applied to mixtures by using a thermophysical properties model which mixes specie property value.

Usage

Property	Description
`Tc`	Critical temperature [K]
`Vc`	Critical volume [m^3/kmol]
`Pc`	Critical pressure [Pa]
`omega`	Acentric factor [-]

Example specification of the PengRobinsonGas equation of state for methane:

    equationOfState
    {
        Tc        190.55;
        Vc        0.0285;
        Pc        4.595e6;
        omega     0.0115;

    }

Source files

Definition at line 124 of file PengRobinsonGas.H.

Constructor & Destructor Documentation

◆ PengRobinsonGas() [1/3]

PengRobinsonGas	(	const Specie &	sp,
		const scalar &	Tc,
		const scalar &	Vc,
		const scalar &	Zc,
		const scalar &	Pc,
		const scalar &	omega
	)

inline

Construct from components.

Definition at line 32 of file PengRobinsonGasI.H.

◆ PengRobinsonGas() [2/3]

PengRobinsonGas	(	const word &	name,
		const dictionary &	dict
	)

Construct from name and dictionary.

Definition at line 32 of file PengRobinsonGas.C.

References Foam::constant::physicoChemical::RR.

◆ PengRobinsonGas() [3/3]

PengRobinsonGas	(	const word &	name,
		const PengRobinsonGas< Specie > &	pg
	)

inline

Construct as named copy.

Definition at line 52 of file PengRobinsonGasI.H.

Member Function Documentation

◆ clone()

Foam::autoPtr< Foam::PengRobinsonGas< Specie > > clone

inline

Construct and return a clone.

Definition at line 69 of file PengRobinsonGasI.H.

◆ typeName()

static word typeName ( )

inlinestatic

Return the instantiated type name.

Definition at line 174 of file PengRobinsonGas.H.

◆ rho()

Foam::scalar rho	(	scalar	p,
		scalar	T
	)		const

inline

Return density [kg/m^3].

Definition at line 81 of file PengRobinsonGasI.H.

References p, Foam::R(), and Foam::T().

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◆ H()

Foam::scalar H	(	const scalar	p,
		const scalar	T
	)		const

inline

Return enthalpy contribution [J/kg].

Definition at line 93 of file PengRobinsonGasI.H.

References alpha(), B, Foam::constant::electromagnetic::kappa, Foam::log(), p, Foam::R(), Foam::sqr(), Foam::sqrt(), and Foam::T().

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◆ Cp()

Foam::scalar Cp	(	scalar	p,
		scalar	T
	)		const

inline

Return Cp contribution [J/(kg K].

Definition at line 115 of file PengRobinsonGasI.H.

References A, alpha(), b, B, Foam::constant::electromagnetic::kappa, Foam::log(), M, p, Foam::pow3(), Foam::constant::physicoChemical::RR, Foam::sqr(), Foam::sqrt(), Foam::T(), and Foam::W().

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◆ E()

Foam::scalar E	(	const scalar	p,
		const scalar	T
	)		const

inline

Return internal energy contribution [J/kg].

Definition at line 146 of file PengRobinsonGasI.H.

References alpha(), B, Foam::constant::electromagnetic::kappa, Foam::log(), p, Foam::R(), Foam::sqr(), Foam::sqrt(), and Foam::T().

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◆ Cv()

Foam::scalar Cv	(	scalar	p,
		scalar	T
	)		const

inline

Return Cv contribution [J/(kg K].

Definition at line 167 of file PengRobinsonGasI.H.

References b, B, Foam::constant::electromagnetic::kappa, Foam::log(), p, Foam::pow3(), Foam::constant::physicoChemical::RR, Foam::sqr(), Foam::sqrt(), Foam::T(), and Foam::W().

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◆ Sp()

Foam::scalar Sp	(	const scalar	p,
		const scalar	T
	)		const

inline

Return entropy contribution to the integral of Cp/T [J/kg/K].

Definition at line 190 of file PengRobinsonGasI.H.

References B, Foam::constant::electromagnetic::kappa, Foam::log(), p, Foam::constant::standard::Pstd, Foam::R(), Foam::sqr(), Foam::sqrt(), and Foam::T().

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◆ Sv()

Foam::scalar Sv	(	const scalar	p,
		const scalar	T
	)		const

inline

Return entropy contribution to the integral of Cv/T [J/kg/K].

Definition at line 217 of file PengRobinsonGasI.H.

References NotImplemented.

◆ psi()

Foam::scalar psi	(	scalar	p,
		scalar	T
	)		const

inline

Return compressibility [s^2/m^2].

Definition at line 229 of file PengRobinsonGasI.H.

References p, Foam::R(), and Foam::T().

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◆ Z()

Foam::scalar Z	(	scalar	p,
		scalar	T
	)		const

inline

Return compression factor [].

Definition at line 242 of file PengRobinsonGasI.H.

References A, Foam::constant::atomic::a0, Foam::acos(), alpha(), b, B, Foam::cos(), D, Foam::constant::electromagnetic::kappa, Foam::mag(), Foam::max(), p, Foam::constant::mathematical::pi(), Foam::pow(), Foam::pow3(), Foam::constant::physicoChemical::RR, Foam::fvm::S(), Foam::sqr(), Foam::sqrt(), and Foam::T().

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◆ CpMCv()

Foam::scalar CpMCv	(	scalar	p,
		scalar	T
	)		const

inline

Return (Cp - Cv) [J/(kg K].

Definition at line 304 of file PengRobinsonGasI.H.

References A, alpha(), b, B, Foam::constant::electromagnetic::kappa, M, p, Foam::R(), Foam::constant::physicoChemical::RR, Foam::sqr(), Foam::sqrt(), and Foam::T().

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◆ alphav()

Foam::scalar alphav	(	const scalar	p,
		const scalar	T
	)		const

inline

Return volumetric coefficient of thermal expansion [1/T].

Definition at line 330 of file PengRobinsonGasI.H.

References NotImplemented.

◆ write()

void write ( Ostream & os ) const

Write to Ostream.

Definition at line 53 of file PengRobinsonGas.C.

References Foam::vtkWriteOps::write().

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◆ operator+=()

void operator+= ( const PengRobinsonGas< Specie > & )

inline

Definition at line 344 of file PengRobinsonGasI.H.

References Foam::mag(), Foam::constant::physicoChemical::RR, Foam::W(), and Y.

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◆ operator*=()

void operator*= ( const scalar s )

inline

Definition at line 367 of file PengRobinsonGasI.H.

References s().

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Friends And Related Function Documentation

◆ operator+

PengRobinsonGas operator+	(	const PengRobinsonGas< Specie > &	,
		const PengRobinsonGas< Specie > &
	)

friend

◆ operator*

PengRobinsonGas operator*	(	const scalar	s,
		const PengRobinsonGas< Specie > &
	)

friend

◆ operator==

PengRobinsonGas operator==	(	const PengRobinsonGas< Specie > &	,
		const PengRobinsonGas< Specie > &
	)

friend

◆ operator

Ostream& operator	(	Ostream &	,
		const PengRobinsonGas< Specie > &
	)

friend

Member Data Documentation

◆ incompressible

const bool incompressible = false

static

Is the equation of state is incompressible i.e. rho != f(p)

Definition at line 183 of file PengRobinsonGas.H.

◆ isochoric

const bool isochoric = false

static

Is the equation of state is isochoric i.e. rho = const.

Definition at line 186 of file PengRobinsonGas.H.

The documentation for this class was generated from the following files:

src/thermophysicalModels/specie/equationOfState/PengRobinsonGas/PengRobinsonGas.H
src/thermophysicalModels/specie/equationOfState/PengRobinsonGas/PengRobinsonGas.C
src/thermophysicalModels/specie/equationOfState/PengRobinsonGas/PengRobinsonGasI.H

Public Member Functions

Static Public Member Functions

Static Public Attributes

Friends

Detailed Description

template<class Specie> class Foam::PengRobinsonGas< Specie >

Constructor & Destructor Documentation

◆ PengRobinsonGas() [1/3]

◆ PengRobinsonGas() [2/3]

◆ PengRobinsonGas() [3/3]

Member Function Documentation

◆ clone()

◆ typeName()

◆ rho()

◆ H()

◆ Cp()

◆ E()

◆ Cv()

◆ Sp()

◆ Sv()

◆ psi()

◆ Z()

◆ CpMCv()

◆ alphav()

◆ write()

◆ operator+=()

◆ operator*=()

Friends And Related Function Documentation

◆ operator+

◆ operator*

◆ operator==

◆ operator

Member Data Documentation

◆ incompressible

◆ isochoric

template<class Specie>
class Foam::PengRobinsonGas< Specie >