Dumux::Components::CH4< Scalar > Class Template Reference

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 = Scalar
	export the scalar type used by the component More...

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

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

Member Typedef Documentation

Scalar

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

inherited

export the scalar type used by the component

Member Function Documentation

criticalPressure()

template<class Scalar >

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

inlinestatic

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

criticalTemperature()

template<class Scalar >

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

inlinestatic

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

gasDensity()

template<class Scalar >

static 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 >

static 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 >

static 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) [56]

gasInternalEnergy()

template<class Scalar >

static 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 >

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

inlinestaticconstexpr

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

gasIsIdeal()

template<class Scalar >

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

inlinestaticconstexpr

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

gasMolarDensity()

template<class Scalar >

static 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 >

static 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()

static 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 >

static 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) [56]
5th edition (2001, pp 9.7-9.8 (omega and V_c taken from p. A.5)) [54]

gasViscosityIsConstant()

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

inlinestaticconstexprinherited

Returns true if the gas phase viscostiy is constant.

init()

static 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 >

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

inlinestaticconstexpr

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

name()

template<class Scalar >

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

inlinestatic

A human readable name for methane.

triplePressure()

template<class Scalar >

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

inlinestatic

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

tripleTemperature()

template<class Scalar >

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

inlinestatic

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

vaporPressure()

template<class Scalar >

static 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

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

staticconstexprinherited

if the component relies on tabulated values

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

• ch4.hh