Properties of pure molecular methane \(CH_4\). More...

#include <dumux/material/components/ch4.hh>

Inheritance diagram for Dumux::Components::CH4< Scalar >:

Description

template<class Scalar>
class Dumux::Components::CH4< Scalar >

Properties of pure molecular methane \(CH_4\).

Template Parameters

Scalar The type used for scalar values

Public Types
using	Scalar
	export the scalar type used by the component

Static Public Member Functions
static std::string	name ()
	A human readable name for methane.
static constexpr Scalar	molarMass ()
	The molar mass in \(\mathrm{[kg/mol]}\) of molecular methane.
static Scalar	criticalTemperature ()
	Returns the critical temperature \(\mathrm{[K]}\) of molecular methane.
static Scalar	criticalPressure ()
	Returns the critical pressure \(\mathrm{[Pa]}\) of molecular methane.
static Scalar	tripleTemperature ()
	Returns the temperature \(\mathrm{[K]}\) at molecular methane's triple point.
static Scalar	triplePressure ()
	Returns the pressure \(\mathrm{[Pa]}\) at molecular methane's triple point.
static Scalar	vaporPressure (Scalar T)
	The vapor pressure in \(\mathrm{[Pa]}\) of pure molecular methane at a given temperature.
static constexpr bool	gasIsCompressible ()
	Returns true if the gas phase is assumed to be compressible.
static Scalar	gasDensity (Scalar temperature, Scalar pressure)
	The density \(\mathrm{[kg/m^3]}\) of \(CH_4\) gas at a given pressure and temperature.
static Scalar	gasMolarDensity (Scalar temperature, Scalar pressure)
	The molar density of \(CH_4\) gas in \(\mathrm{[mol/m^3]}\), depending on pressure and temperature.
static constexpr bool	gasIsIdeal ()
	Returns true if the gas phase is assumed to be ideal.
static Scalar	gasPressure (Scalar temperature, Scalar density)
	The pressure of gaseous \(CH_4\) in \(\mathrm{[Pa]}\) at a given density and temperature.
static const Scalar	gasEnthalpy (Scalar temperature, Scalar pressure)
	Specific enthalpy \(\mathrm{[J/kg]}\) of pure methane gas.
static Scalar	gasHeatCapacity (Scalar T, Scalar pressure)
	Specific isobaric heat capacity \(\mathrm{[J/(kg*K)]}\) of pure methane gas.
static const Scalar	gasInternalEnergy (Scalar temperature, Scalar pressure)
	Specific enthalpy \(\mathrm{[J/kg]}\) of pure methane gas.
static Scalar	gasViscosity (Scalar temperature, Scalar pressure)
	The dynamic viscosity \(\mathrm{[Pa*s]}\) of \(CH_4\) at a given pressure and temperature.
static void	init (Scalar tempMin, Scalar tempMax, unsigned nTemp, Scalar pressMin, Scalar pressMax, unsigned nPress)
	A default routine for initialization, not needed for components and must not be called.
static constexpr bool	gasViscosityIsConstant ()
	Returns true if the gas phase viscostiy is constant.
static Scalar	gasThermalConductivity (Scalar temperature, Scalar pressure)
	Thermal conductivity of the component \(\mathrm{[W/(m*K)]}\) as a gas.

Static Public Attributes
static constexpr bool	isTabulated
	if the component relies on tabulated values

Member Typedef Documentation

◆ Scalar

using Dumux::Components::Base< Scalar, CH4< Scalar > >::Scalar

inherited

export the scalar type used by the component

Member Function Documentation

◆ criticalPressure()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::criticalPressure ( )

inlinestatic

Returns the critical pressure \(\mathrm{[Pa]}\) of molecular methane.

◆ criticalTemperature()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::criticalTemperature ( )

inlinestatic

Returns the critical temperature \(\mathrm{[K]}\) of molecular methane.

◆ gasDensity()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::gasDensity	(	Scalar	temperature,
		Scalar	pressure )

inlinestatic

The density \(\mathrm{[kg/m^3]}\) of \(CH_4\) gas at a given pressure and temperature.

Parameters

temperature	temperature of component in \(\mathrm{[K]}\)
pressure	pressure of component in \(\mathrm{[Pa]}\)

◆ gasEnthalpy()

template<class Scalar>

const Scalar Dumux::Components::CH4< Scalar >::gasEnthalpy	(	Scalar	temperature,
		Scalar	pressure )

inlinestatic

Specific enthalpy \(\mathrm{[J/kg]}\) of pure methane gas.

Parameters

temperature	temperature of component in \(\mathrm{[K]}\)
pressure	pressure of component in \(\mathrm{[Pa]}\)

◆ gasHeatCapacity()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::gasHeatCapacity	(	Scalar	T,
		Scalar	pressure )

inlinestatic

Specific isobaric heat capacity \(\mathrm{[J/(kg*K)]}\) of pure methane gas.

This is equivalent to the partial derivative of the specific enthalpy to the temperature.

See: R. Reid, et al. (1987, pp 154, 657, 665) [53]

◆ gasInternalEnergy()

template<class Scalar>

const Scalar Dumux::Components::CH4< Scalar >::gasInternalEnergy	(	Scalar	temperature,
		Scalar	pressure )

inlinestatic

Specific enthalpy \(\mathrm{[J/kg]}\) of pure methane gas.

  Definition of enthalpy: \f$h= u + pv = u + p / \rho\f$.

  Rearranging for internal energy yields: \f$u = h - pv\f$.

  Exploiting the Ideal Gas assumption (\f$pv = R_{\textnormal{specific}} T\f$)gives: \f$u = h - R / M T \f$.

  The universal gas constant can only be used in the case of molar formulations.

Parameters

temperature	temperature of component in \(\mathrm{[K]}\)
pressure	pressure of component in \(\mathrm{[Pa]}\)

◆ gasIsCompressible()

template<class Scalar>

constexpr bool Dumux::Components::CH4< Scalar >::gasIsCompressible ( )

inlinestaticconstexpr

Returns true if the gas phase is assumed to be compressible.

◆ gasIsIdeal()

template<class Scalar>

constexpr bool Dumux::Components::CH4< Scalar >::gasIsIdeal ( )

inlinestaticconstexpr

Returns true if the gas phase is assumed to be ideal.

◆ gasMolarDensity()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::gasMolarDensity	(	Scalar	temperature,
		Scalar	pressure )

inlinestatic

The molar density of \(CH_4\) gas in \(\mathrm{[mol/m^3]}\), depending on pressure and temperature.

Parameters

temperature	The temperature of the gas
pressure	The pressure of the gas

◆ gasPressure()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::gasPressure	(	Scalar	temperature,
		Scalar	density )

inlinestatic

The pressure of gaseous \(CH_4\) in \(\mathrm{[Pa]}\) at a given density and temperature.

Parameters

temperature	temperature of component in \(\mathrm{[K]}\)
density	density of component in \(\mathrm{[kg/m^3]}\)

◆ gasThermalConductivity()

Scalar Dumux::Components::Gas< Scalar, CH4< Scalar > >::gasThermalConductivity	(	Scalar	temperature,
		Scalar	pressure )

inlinestaticinherited

Thermal conductivity of the component \(\mathrm{[W/(m*K)]}\) as a gas.

Parameters

temperature	temperature of component in \(\mathrm{[K]}\)
pressure	pressure of component in \(\mathrm{[Pa]}\)

◆ gasViscosity()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::gasViscosity	(	Scalar	temperature,
		Scalar	pressure )

inlinestatic

The dynamic viscosity \(\mathrm{[Pa*s]}\) of \(CH_4\) at a given pressure and temperature.

Parameters

temperature	temperature of component in \(\mathrm{[K]}\)
pressure	pressure of component in \(\mathrm{[Pa]}\)

See:

See: R. Reid, et al.: The Properties of Gases and Liquids, 4th edition (1987, pp 396-397, 670) [53]
5th edition (2001, pp 9.7-9.8 (omega and V_c taken from p. A.5)) [51]

◆ gasViscosityIsConstant()

constexpr bool Dumux::Components::Gas< Scalar, CH4< Scalar > >::gasViscosityIsConstant ( )

inlinestaticconstexprinherited

Returns true if the gas phase viscostiy is constant.

◆ init()

void Dumux::Components::Base< Scalar, CH4< Scalar > >::init	(	Scalar	tempMin,
		Scalar	tempMax,
		unsigned	nTemp,
		Scalar	pressMin,
		Scalar	pressMax,
		unsigned	nPress )

inlinestaticinherited

A default routine for initialization, not needed for components and must not be called.

Parameters

tempMin	The minimum of the temperature range in \(\mathrm{[K]}\)
tempMax	The maximum of the temperature range in \(\mathrm{[K]}\)
nTemp	The number of entries/steps within the temperature range
pressMin	The minimum of the pressure range in \(\mathrm{[Pa]}\)
pressMax	The maximum of the pressure range in \(\mathrm{[Pa]}\)
nPress	The number of entries/steps within the pressure range

This function throws a warning when called: "No init routine defined - make sure that this is not necessary!"

◆ molarMass()

template<class Scalar>

constexpr Scalar Dumux::Components::CH4< Scalar >::molarMass ( )

inlinestaticconstexpr

The molar mass in \(\mathrm{[kg/mol]}\) of molecular methane.

◆ name()

template<class Scalar>

std::string Dumux::Components::CH4< Scalar >::name ( )

inlinestatic

A human readable name for methane.

◆ triplePressure()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::triplePressure ( )

inlinestatic

Returns the pressure \(\mathrm{[Pa]}\) at molecular methane's triple point.

◆ tripleTemperature()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::tripleTemperature ( )

inlinestatic

Returns the temperature \(\mathrm{[K]}\) at molecular methane's triple point.

◆ vaporPressure()

template<class Scalar>

Scalar Dumux::Components::CH4< Scalar >::vaporPressure ( Scalar T )

inlinestatic

The vapor pressure in \(\mathrm{[Pa]}\) of pure molecular methane at a given temperature.

Parameters

T	temperature of component in \(\mathrm{[K]}\)

Member Data Documentation

◆ isTabulated

bool Dumux::Components::Base< Scalar, CH4< Scalar > >::isTabulated

staticconstexprinherited

if the component relies on tabulated values

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

ch4.hh

Description

Public Types

Static Public Member Functions

Static Public Attributes

Member Typedef Documentation

◆ Scalar

Member Function Documentation

◆ criticalPressure()

◆ criticalTemperature()

◆ gasDensity()

◆ gasEnthalpy()

◆ gasHeatCapacity()

◆ gasInternalEnergy()

◆ gasIsCompressible()

◆ gasIsIdeal()

◆ gasMolarDensity()

◆ gasPressure()

◆ gasThermalConductivity()

◆ gasViscosity()

◆ gasViscosityIsConstant()

◆ init()

◆ molarMass()

◆ name()

◆ triplePressure()

◆ tripleTemperature()

◆ vaporPressure()

Member Data Documentation

◆ isTabulated