MaterialLib::Fluid::IdealGasLaw Class Reference

Detailed Description

Fluid density by ideal gas law.

Definition at line 28 of file IdealGasLaw.h.

#include <IdealGasLaw.h>

Inheritance diagram for MaterialLib::Fluid::IdealGasLaw:

Collaboration diagram for MaterialLib::Fluid::IdealGasLaw:

Public Member Functions
	IdealGasLaw (const double molar_mass)
std::string	getName () const override
	Get density model name.
double	getValue (const ArrayType &var_vals) const override
double	getdValue (const ArrayType &var_vals, const PropertyVariableType var) const override
Public Member Functions inherited from MaterialLib::Fluid::FluidProperty
virtual	~FluidProperty ()=default

Private Member Functions
double	dIdealGasLaw_dT (const double T, const double pg) const
double	dIdealGasLaw_dp (const double T, const double) const

Private Attributes
const double	_molar_mass
	Molar mass of gas phase.

Additional Inherited Members
Public Types inherited from MaterialLib::Fluid::FluidProperty
using	ArrayType = std::array<double, PropertyVariableNumber>

Constructor & Destructor Documentation

IdealGasLaw()

MaterialLib::Fluid::IdealGasLaw::IdealGasLaw ( const double molar_mass )

inlineexplicit

Parameters

molar_mass

Molar mass of the gas phase.

Definition at line 32 of file IdealGasLaw.h.

: _molar_mass(molar_mass) {}

Member Function Documentation

dIdealGasLaw_dp()

double MaterialLib::Fluid::IdealGasLaw::dIdealGasLaw_dp ( const double T, const double  ) const

inlineprivate

Get the partial differential of density with the respect to pressure

Parameters

T	Temperature in K.

Definition at line 82 of file IdealGasLaw.h.

    {
        return _molar_mass / (PhysicalConstant::IdealGasConstant * T);
    }

References _molar_mass, MaterialLib::PhysicalConstant::IdealGasConstant, and MaterialLib::Fluid::T.

Referenced by getdValue().

dIdealGasLaw_dT()

double MaterialLib::Fluid::IdealGasLaw::dIdealGasLaw_dT ( const double T, const double pg ) const

inlineprivate

Get the partial differential of density with the respect to temperature

Parameters

T	Temperature in K.
pg	Gas phase pressure in Pa.

Definition at line 75 of file IdealGasLaw.h.

    {
        return -_molar_mass * pg / (PhysicalConstant::IdealGasConstant * T * T);
    }

References _molar_mass, MaterialLib::PhysicalConstant::IdealGasConstant, and MaterialLib::Fluid::T.

Referenced by getdValue().

getdValue()

double MaterialLib::Fluid::IdealGasLaw::getdValue ( const ArrayType & var_vals, const PropertyVariableType var ) const

inlineoverridevirtual

Get the partial differential of the density with respect to temperature or gas pressure.

Parameters

var_vals	Variable values in an array. The order of its elements is given in enum class PropertyVariableType.
var	Variable type.

Implements MaterialLib::Fluid::FluidProperty.

Definition at line 52 of file IdealGasLaw.h.

    {
        const double T = var_vals[static_cast<int>(PropertyVariableType::T)];
        const double p = var_vals[static_cast<int>(PropertyVariableType::p)];
        switch (var)
        {
            case PropertyVariableType::T:
                return dIdealGasLaw_dT(T, p);
            case PropertyVariableType::p:
                return dIdealGasLaw_dp(T, p);
            default:
                return 0.;
        }
    }

References dIdealGasLaw_dp(), dIdealGasLaw_dT(), MaterialLib::Fluid::p, and MaterialLib::Fluid::T.

getName()

std::string MaterialLib::Fluid::IdealGasLaw::getName ( ) const

inlineoverridevirtual

Get density model name.

Implements MaterialLib::Fluid::FluidProperty.

Definition at line 35 of file IdealGasLaw.h.

{ return "Ideal gas law"; }

getValue()

double MaterialLib::Fluid::IdealGasLaw::getValue ( const ArrayType & var_vals ) const

inlineoverridevirtual

Get density value.

Parameters

var_vals

Variable values in an array. The order of its elements is given in enum class PropertyVariableType.

Implements MaterialLib::Fluid::FluidProperty.

Definition at line 39 of file IdealGasLaw.h.

    {
        return _molar_mass *
               var_vals[static_cast<int>(PropertyVariableType::p)] /
               (PhysicalConstant::IdealGasConstant *
                var_vals[static_cast<int>(PropertyVariableType::T)]);
    }

References _molar_mass, MaterialLib::PhysicalConstant::IdealGasConstant, MaterialLib::Fluid::p, and MaterialLib::Fluid::T.

Member Data Documentation

_molar_mass

const double MaterialLib::Fluid::IdealGasLaw::_molar_mass

private

Molar mass of gas phase.

Definition at line 70 of file IdealGasLaw.h.

Referenced by dIdealGasLaw_dp(), dIdealGasLaw_dT(), and getValue().

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

• MaterialLib/Fluid/Density/IdealGasLaw.h