Class describing a Noble-Abel stiffened gas equation of state. More...

#include <EosNASG.h>

Inherits Eos.

Public Member Functions
	EosNASG (std::vector< std::string > &nameParameterEos, int &number)

virtual	~EosNASG ()

virtual void	assignParametersEos (std::string name, std::vector< double > parametersEos)
	assign the values of the attributes for EosNASG from data defined in the code

virtual double	computeTemperature (const double &density, const double &pressure) const
	Compute temperature.

virtual double	computeEnergy (const double &density, const double &pressure) const
	Compute internal energy.

virtual double	computePressure (const double &density, const double &energy) const
	Compute pressure.

virtual double	computeDensity (const double &pressure, const double &temperature) const
	Compute density.

virtual double	computeSoundSpeed (const double &density, const double &pressure) const
	Compute sound speed.

virtual double	computeInterfaceSoundSpeed (const double &density, const double &interfacePressure, const double &pressure) const
	Compute interface sound speed.

virtual double	computeAcousticImpedance (const double &density, const double &pressure) const
	Compute acoustic impedance.

virtual double	computeDensityTimesInterfaceSoundSpeedSquare (const double &density, const double &interfacePressure, const double &pressure) const
	Compute density times interface sound speed square.

virtual double	computeEntropy (const double &temperature, const double &pressure) const
	Compute entropy.

virtual double	computePressureIsentropic (const double &initialPressure, const double &initialDensity, const double &finalDensity) const
	Compute phase pressure along an isentropic path.

virtual double	computePressureHugoniot (const double &initialPressure, const double &initialDensity, const double &finalDensity) const
	Compute pressure along the Hugoniot curve.

virtual double	computeDensityIsentropic (const double &initialPressure, const double &initialDensity, const double &finalPressure, double *drhodp=0) const
	Compute density along an isentropic path AND its derivature versus the pressure at constant entropy.

virtual double	computeDensityHugoniot (const double &initialPressure, const double &initialDensity, const double &finalPressure, double *drhodp=0) const
	Compute density along the Hugoniot curve AND its derivature versus the pressure along Hugoniot curve.

virtual double	computeDensityPfinal (const double &initialPressure, const double &initialDensity, const double &finalPressure, double *drhodp=0) const
	Compute density during relaxation step AND its derivative versus the pressure.

virtual double	computeEnthalpyIsentropic (const double &initialPressure, const double &initialDensity, const double &finalPressure, double *dhdp=0) const
	Compute enthalpy at the end of an isentropic path AND the enthalpy derivature versus the pressure.

virtual double	computeDensitySaturation (const double &pressure, const double &Tsat, const double &dTsatdP, double *drhodp=0) const
	Compute density on the saturation curve at the saturation temperature AND its derivative versus the pressure at constant density (OPTIONAL)

virtual double	computeDensityEnergySaturation (const double &pressure, const double &rho, const double &drhodp, double *drhoedp=0) const
	Compute the volumic internal energy at the saturation AND its derivative versus the pressure at constant density (OPTIONAL)

virtual void	sendSpecialMixtureEos (double &gamPinfOverGamMinusOne, double &eRef, double &oneOverGamMinusOne, double &covolume) const
	Send specific values of the parameters useful for mixture EOS based on Ideal Gas and Stiffened Gas.

virtual double	vfpfh (const double &pressure, const double &enthalpy) const
	Compute the specific volume with the pressure and the enthalpy.

virtual double	dvdpch (const double &pressure, const double &enthalpy) const
	Compute the partial derivative of the specific volume versus pressure at constant enthalpy.

virtual double	dvdhcp (const double &pressure) const
	Compute the partial derivative of the specific volume versus enthalpy at constant pressure.

virtual double	drhodpcT (const double &pressure, const double &temperature) const
	Compute the partial derivative of density versus pressure at constant temperature.

virtual void	verifyPressure (const double &pressure, const std::string &message="") const
	Add a message error if the pressure is too low and under a limit value equal to \( -(1. - 10^{-15})*p_{\infty} + 10^{-15} \).

virtual void	verifyAndModifyPressure (double &pressure) const
	Modify the pressure if its value is under a limit value equal to \( -(1. - 10^{-15})*p_{\infty} + 10^{-15} \).

virtual void	verifyAndCorrectDensityMax (const double &mass, double &alpha, double &density) const
	Modify the density if its value is above a limit value equal to \( \frac{1.}{b} - 1. \) and then correct the volume fraction based on mass.

virtual void	verifyAndCorrectDensityMax (double &density) const
	Modify the density if its value is above a limit value equal to \( \frac{1.}{b} - 1. \).

virtual const double &	getGamma () const
	Get the adiabatic exponent of the fluid.

virtual const double &	getPInf () const
	Get the constant pressure.

virtual const double &	getCv () const
	Get the volume calorific energy of the fluid.

virtual const double &	getERef () const
	Get the energy of reference of the fluid.

virtual const double &	getSRef () const
	Get the entropy of reference of the fluid.

virtual const double &	getB () const
	Get the covolume of the fluid.

virtual TypeEOS	getType () const
	Get the type that is to say the reduced name of the EOS in ECOGEN return \( \ "NASG" \).

Public Member Functions inherited from Eos
	Eos (int &number)

virtual	~Eos ()

const std::string &	getName () const

const int &	getNumber () const
	Return the number associated to the EOS.

void	readPhysicalParameters (tinyxml2::XMLNode *element)
	Read physical parameters (viscosity, thermal conductivity....)

double	computeEnthalpy (const double &density, const double &pressure) const
	Compute the enthalpy of the phase.

double	computeTotalEnthalpy (const double &density, const double &pressure, const double &velX, const double &velY=0., const double &velZ=0.) const
	Compute the total enthalpy of the phase.

double	computeTotalEnthalpy (const double &density, const double &pressure, const Coord &velocity) const
	Compute the total enthalpy of the phase.

const double &	getMu () const
	Return the dynamic viscosity of the fluid return \( \mu \) (Unit: Pa.s).

const double &	getLambda () const
	get the thermal conductivity of the fluid return \( \lambda \) (Unit: W/(m.K)).

void	assignEpsilonForAlphaNull (bool alphaNull) const
	Assign the epsilonAlphaNull value for alphaNull option (alpha = 0 => epsilonAlphaNull != 0 ; alpha != 0 => epsilonAlphaNull = 0)

virtual double	dedrho (const double &, const double &) const
	See derived classes.

virtual double	dedrhoSecond (const double &, const double &) const
	See derived classes.

Private Attributes
double	m_gamma
	Adiabatic exponent of the fluid.

double	m_pInf
	Infinit (reference) pressure of the fluid.

double	m_b
	Covolume of the fluid.

double	m_cv
	Volume calorific energy of the fluid.

double	m_eRef
	Energy of reference of the fluid.

double	m_sRef
	Entropy of the fluid.

Additional Inherited Members
Protected Attributes inherited from Eos
int	m_number
	Corresponding number of the equation of state.

std::string	m_name
	Name of the equation of state.

double	m_mu
	Dynamic viscosity (kg/m/s or Pa.s)

double	m_lambda
	Thermal conductivity (W/(m.K))

Detailed Description

Class describing a Noble-Abel stiffened gas equation of state.

Constructor & Destructor Documentation

◆ EosNASG()

EosNASG::EosNASG	(	std::vector< std::string > &	nameParameterEos,
		int &	number
	)

◆ ~EosNASG()

EosNASG::~EosNASG ( )

virtual

Member Function Documentation

◆ assignParametersEos()

void EosNASG::assignParametersEos	(	std::string	name,
		std::vector< double >	parametersEos
	)

virtual

assign the values of the attributes for EosNASG from data defined in the code

Parameters

name	string that contains the reduced name (should be NASG)
parametersEos	vector (size depending on the Eos, 6 for NASG)

Are assigned the following attributes: name, \( \gamma, \; p_{infty}, \; b, \; c_v, \; e_{ref}, \; s_{ref}\). If the size of parameterEos \( \neq 6\) then the code aborts.

Implements Eos.

◆ computeAcousticImpedance()

double EosNASG::computeAcousticImpedance	(	const double &	density,
		const double &	pressure
	)		const

virtual

Compute acoustic impedance.

Parameters

density	density ( \(\rho\))
pressure	pressure (p)

Returns: acousticImpedance

with : \( z(p, \rho) = \sqrt{ \frac{\rho \ \gamma \ (p+p_{\infty})}{1-\rho b} } \)

Reimplemented from Eos.

◆ computeDensity()

double EosNASG::computeDensity	(	const double &	pressure,
		const double &	temperature
	)		const

virtual

Compute density.

Parameters

pressure	pressure (p)
temperature	temperature (T)

Returns: density

with density : \( \rho(p, T) = \frac{p + p_{\infty} }{c_v T(\gamma-1) + b (p + p_{\infty})} \)

Reimplemented from Eos.

◆ computeDensityEnergySaturation()

double EosNASG::computeDensityEnergySaturation	(	const double &	pressure,
		const double &	rho,
		const double &	drhodp,
		double *	drhoedp = `0`
	)		const

virtual

Compute the volumic internal energy at the saturation AND its derivative versus the pressure at constant density (OPTIONAL)

Parameters

pressure	pressure (p)
density	density ( \( \rho \))
drhodp	derivative of the density versus pressure ( \(\frac{d \rho}{d p}\) at the saturation state)

Returns: rhoe AND *drhoedp (OPTIONAL)

with rhoe : \( \rho\epsilon(p, \rho) = \frac{(p+\gamma p_{\infty})(1-\rho b)}{(\gamma-1)} +\rho\epsilon_{ref} \) AND \( \frac{d \rho\epsilon}{d p} =\left. \frac{\partial \rho\epsilon}{\partial p} \right)_{\rho} + \left. \frac{\partial \rho\epsilon}{\partial\rho } \right)_p \frac{d\rho}{dp} = \frac{1-\rho b}{(\gamma-1)} +\frac{d \rho}{d p}\left(\epsilon_{ref}-b\frac{(p+\gamma p_{\infty})}{\gamma-1}\right) \)

Reimplemented from Eos.

◆ computeDensityHugoniot()

double EosNASG::computeDensityHugoniot	(	const double &	initialPressure,
		const double &	initialDensity,
		const double &	finalPressure,
		double *	drhodp = `0`
	)		const

virtual

Compute density along the Hugoniot curve AND its derivature versus the pressure along Hugoniot curve.

Parameters

initialPressure	initial pressure ( \( p_i \))
initialDensity	initial density ( \( \rho_i \))
finalPressure	final pressure ( \( p_f \))

Returns: finalDensity AND *drhodp (OPTIONAL)

with finalDensity : \( \rho_f =\rho_i\frac{ (\gamma + 1)*(p_f+p_{\infty}) + (\gamma - 1)*(p_i+p_{\infty})}{(\gamma - 1)(p_f+p_{\infty}) +(\gamma + 1)(p_i+p_{\infty}) + 2 b \rho_0 (p_f-p_i)} \) AND with *drhodp : \( \left. \frac{\partial \rho}{\partial p} \right)_{Hug} = \frac{4\gamma \rho_i \ (p_i+p_{\infty}) \ (1- b\rho_i)}{ \left( (\gamma - 1)(p_f+p_{\infty}) +(\gamma + 1)(p_i+p_{\infty}) +2b\rho_i (p_f-p_i)\right) ^2} \)

Reimplemented from Eos.

◆ computeDensityIsentropic()

double EosNASG::computeDensityIsentropic	(	const double &	initialPressure,
		const double &	initialDensity,
		const double &	finalPressure,
		double *	drhodp = `0`
	)		const

virtual

Compute density along an isentropic path AND its derivature versus the pressure at constant entropy.

Parameters

initialPressure	initial pressure ( \( p_i \))
initialDensity	initial density ( \( \rho_i \))
finalPressure	final pressure ( \( p_f \))

Returns: finalDensity AND *drhodp (OPTIONAL)

with finalDensity : \( \rho_f = \rho_i \frac{(p_f + p_{\infty})^{1/\gamma}}{(p_i + p_{\infty})^{1/\gamma} (1-\rho_i b) + \rho_i b (p_f + p_{\infty})^{1/\gamma}} \) AND with *drhodp : \( \left. \frac{\partial \rho}{\partial p} \right)_s = \frac{\rho_f (1-\rho_f b)}{\gamma (p_f+p_{\infty})} \)

Reimplemented from Eos.

◆ computeDensityPfinal()

double EosNASG::computeDensityPfinal	(	const double &	initialPressure,
		const double &	initialDensity,
		const double &	finalPressure,
		double *	drhodp = `0`
	)		const

virtual

Compute density during relaxation step AND its derivative versus the pressure.

Parameters

initialPressure	initial pressure ( \( p_i \))
initialDensity	initial density ( \( \rho_i \))
finalPressure	final pressure ( \( p_f \))

Returns: finalDensity AND *drhodp (OPTIONAL)

with finalDensity : \( \rho_f = \rho_i \frac{\gamma (p_f+p_{\infty})}{\gamma (p_f+p_{\infty}) + p_i - p_f + b \rho_i (p_f -p_i)} \) AND with *drhodp : \( \frac{d\rho}{dp} = \rho_i \gamma \frac{\left(p_i + p_{\infty}-b \rho_i (p_i + p_{\infty})\right)}{\left(\gamma (p_f+p_{\infty}) + p_i - p_f+b \rho_i (p_f - p_i)\right)^2} \)

Reimplemented from Eos.

◆ computeDensitySaturation()

double EosNASG::computeDensitySaturation	(	const double &	pressure,
		const double &	Tsat,
		const double &	dTsatdP,
		double *	drhodp = `0`
	)		const

virtual

Compute density on the saturation curve at the saturation temperature AND its derivative versus the pressure at constant density (OPTIONAL)

Parameters

pressure	pressure (p)
Tsat	saturation temperature ( \(T_{sat}\))
dTsatdP	derivative of the saturation temperature versus pressure ( \(\frac{d T_{sat}}{d p}\))

Returns: rho AND *drhodp (OPTIONAL)

with rho : \( \rho(p, T_{sat}) = \frac{p+p_{\infty}}{T_{sat} \ c_v \ (\gamma-1) + b(p+p_{\infty})} \) AND \( \frac{d \rho}{d p} = \left. \frac{\partial \rho}{\partial p} \right)_{T_{sat}} + \left. \frac{\partial \rho}{\partial T_{sat} } \right)_p \frac{d T_{sat}}{d p} =\frac{(\gamma-1)c_v\left(T_{sat} - (p+p_{\infty})\frac{d T_{sat}}{d p}\right) }{\left((\gamma-1)c_vT_{sat} + b(p+p_{\infty}) \right)^2 } \)

Reimplemented from Eos.

◆ computeDensityTimesInterfaceSoundSpeedSquare()

double EosNASG::computeDensityTimesInterfaceSoundSpeedSquare	(	const double &	density,
		const double &	interfacePressure,
		const double &	pressure
	)		const

virtual

Compute density times interface sound speed square.

Parameters

density	density ( \(\rho\))
interfacePressure	interface pressure (pI)
pressure	pressure (p)

Returns: rhoCISquare

with : \( z(p, \rho) = \frac{(\gamma-1) \ p_I + p + \gamma \ p_{\infty}}{1 - \rho \ b} \)

Reimplemented from Eos.

◆ computeEnergy()

double EosNASG::computeEnergy	(	const double &	density,
		const double &	pressure
	)		const

virtual

Compute internal energy.

Parameters

density	density ( \(\rho\))
pressure	pressure (p)

Returns: internal energy

with internal energy : \( \epsilon (\rho, p) = \frac{(p + \gamma p_{\infty})(1-\rho b)}{\rho (\gamma-1)} \ + \ \epsilon_{ref} \)

Reimplemented from Eos.

◆ computeEnthalpyIsentropic()

double EosNASG::computeEnthalpyIsentropic	(	const double &	initialPressure,
		const double &	initialDensity,
		const double &	finalPressure,
		double *	dhdp = `0`
	)		const

virtual

Compute enthalpy at the end of an isentropic path AND the enthalpy derivature versus the pressure.

Parameters

initialPressure	initial pressure ( \( p_i \) at the beginning of the isentropic path)
initialDensity	initial density ( \( \rho_i \) at the beginning of the isentropic path)
finalPressure	final Pressure ( \( p_f \) at the end of the isentropic path)

Returns: finalEnthalpy AND *dhdp (OPTIONAL)

with finalEnthalpy : \( h(p_f,{\rho_f})= \frac{\gamma}{(\gamma-1)}\frac{p_f+p_{\infty}}{\rho_f} (1-\rho_f b) + b p + e_{ref} \). The density \( \rho_f \) is first computed along an isentropic path (see computeDensityIsentropic EosNASG method ). AND with *dhdp : \( \frac{dh}{dp}=\frac{\gamma}{(\gamma-1)}\left[\frac{ \rho_f - (p_f+p_{\infty}) \frac{d\rho}{dp} }{\rho_f^2}-b\right] +b \). The term \(\frac{d\rho}{dp}\) is the derivative obtained along an isentropic path.

Reimplemented from Eos.

◆ computeEntropy()

double EosNASG::computeEntropy	(	const double &	temperature,
		const double &	pressure
	)		const

virtual

Compute entropy.

Parameters

temperature	temperature (T)
pressure	pressure (p)

Returns: entropy

with s : \( s(T, p) = c_v \ln \left( \frac{T^\gamma} { (p+p_{\infty})^{\gamma-1} } \right)+s_{ref} \)

Reimplemented from Eos.

◆ computeInterfaceSoundSpeed()

double EosNASG::computeInterfaceSoundSpeed	(	const double &	density,
		const double &	interfacePressure,
		const double &	pressure
	)		const

virtual

Compute interface sound speed.

Parameters

density	density ( \(\rho\))
interfacePressure	interface pressure (pI)
pressure	pressure (p)

Returns: soundSpeed

with soundSpeed : \( c(p, \rho) = \sqrt{ \frac{(\gamma-1) \ p_I + p + \gamma \ p_{\infty}}{(1 - \rho \ b) \ \rho}} \)

Reimplemented from Eos.

◆ computePressure()

double EosNASG::computePressure	(	const double &	density,
		const double &	energy
	)		const

virtual

Compute pressure.

Parameters

density	density ( \(\rho\))
energy	internal energy ( \(\epsilon\))

Returns: pressure

with pressure : \( p(\rho, \epsilon) = (\gamma-1)\rho \frac{(\epsilon - \epsilon_{ref})}{(1-\rho b)} - \gamma p_{\infty} \)

Reimplemented from Eos.

◆ computePressureHugoniot()

double EosNASG::computePressureHugoniot	(	const double &	initialPressure,
		const double &	initialDensity,
		const double &	finalDensity
	)		const

virtual

Compute pressure along the Hugoniot curve.

Parameters

initialPressure	initial pressure ( \( p_i \))
initialDensity	initial density ( \( \rho_i \))
finalDensity	final density ( \( \rho_f \))

Returns: finalPressure

with finalPressure : \( p_f = \frac{\rho_i\left(2\gamma p_{\infty}+p_i (\gamma-1)\right)-\rho_f \left(2\gamma p_{\infty}+p_i (\gamma +1)\right)+2b\rho_i p_i}{\rho_f (\gamma-1)-\rho_i (\gamma+1)+2b\rho_0} \)

Reimplemented from Eos.

◆ computePressureIsentropic()

double EosNASG::computePressureIsentropic	(	const double &	initialPressure,
		const double &	initialDensity,
		const double &	finalDensity
	)		const

virtual

Compute phase pressure along an isentropic path.

Parameters

initialPressure	initial pressure ( \( p_i \))
initialDensity	initial density ( \( \rho_i \))
finalDensity	final density ( \( \rho_f \))

Returns: finalPressure

with finalPressure : \( p_f = (p_i+p_{\infty}) \left( \frac{\rho_f}{\rho_i} \right)^\gamma \left(\frac{1-\rho_i b}{1-\rho_f b}\right)^\gamma -p_{\infty} \)

Reimplemented from Eos.

◆ computeSoundSpeed()

double EosNASG::computeSoundSpeed	(	const double &	density,
		const double &	pressure
	)		const

virtual

Compute sound speed.

Parameters

density	density ( \(\rho\))
pressure	pressure (p)

Returns: soundSpeed

with soundSpeed : \( c(p, \rho) = \sqrt{ \frac{\gamma \ (p+p_{\infty})}{\rho (1-\rho b)}} \)

Reimplemented from Eos.

◆ computeTemperature()

double EosNASG::computeTemperature	(	const double &	density,
		const double &	pressure
	)		const

virtual

Compute temperature.

Parameters

density	density ( \(\rho \))
pressure	pressure (p)

Returns: temperature

with temperature : \( T(\rho, p) = \frac{(p+p_{\infty})(1-\rho b)}{c_v (\gamma-1)\rho} \)

Reimplemented from Eos.

◆ drhodpcT()

double EosNASG::drhodpcT	(	const double &	pressure,
		const double &	temperature
	)		const

virtual

Compute the partial derivative of density versus pressure at constant temperature.

Parameters

pressure	pressure (p)
temperature	temperature (T)

Returns: derivative : \( \left. \frac{\partial \rho}{\partial p} \right)_T = \frac{(\gamma -1) c_v T}{\left((\gamma - 1)* c_v * T + b * (p + p_{\infty})\right)^2} \)

Reimplemented from Eos.

◆ dvdhcp()

double EosNASG::dvdhcp ( const double & pressure ) const

virtual

Compute the partial derivative of the specific volume versus enthalpy at constant pressure.

Parameters

pressure pressure (p)

Returns: derivative : \( \left. \frac{\partial v}{\partial h} \right)_p = \frac{(\gamma-1)}{\gamma (p+p_{\infty})} \)

Reimplemented from Eos.

◆ dvdpch()

double EosNASG::dvdpch	(	const double &	pressure,
		const double &	enthalpy
	)		const

virtual

Compute the partial derivative of the specific volume versus pressure at constant enthalpy.

Parameters

pressure	pressure (p)
enthalpy	enthalpy (h)

Returns: derivative : \( \left. \frac{\partial v}{\partial p} \right)_h = \frac{\gamma-1}{\gamma (p+p_{\infty})^2} \left(-b(p+p_{\infty})-(h-bp-q)\right) \)

Reimplemented from Eos.

◆ getB()

virtual const double & EosNASG::getB ( ) const

inlinevirtual

Get the covolume of the fluid.

Returns: m_b : \( b \);

◆ getCv()

virtual const double & EosNASG::getCv ( ) const

inlinevirtual

Get the volume calorific energy of the fluid.

Returns: m_cv : \( c_v \)

Reimplemented from Eos.

◆ getERef()

virtual const double & EosNASG::getERef ( ) const

inlinevirtual

Get the energy of reference of the fluid.

Returns: m_eRef : \( \epsilon_{ref} \)

Reimplemented from Eos.

◆ getGamma()

virtual const double & EosNASG::getGamma ( ) const

inlinevirtual

Get the adiabatic exponent of the fluid.

Returns: m_gamma : \( \gamma \)

Reimplemented from Eos.

◆ getPInf()

virtual const double & EosNASG::getPInf ( ) const

inlinevirtual

Get the constant pressure.

Returns: m_pInf : \( p_{\infty} \)

Reimplemented from Eos.

◆ getSRef()

virtual const double & EosNASG::getSRef ( ) const

inlinevirtual

Get the entropy of reference of the fluid.

Returns: m_sRef : \( \ s_{ref} \)

Reimplemented from Eos.

◆ getType()

virtual TypeEOS EosNASG::getType ( ) const

inlinevirtual

Get the type that is to say the reduced name of the EOS in ECOGEN return \( \ "NASG" \).

Reimplemented from Eos.

◆ sendSpecialMixtureEos()

void EosNASG::sendSpecialMixtureEos	(	double &	gamPinfOverGamMinusOne,
		double &	eRef,
		double &	oneOverGamMinusOne,
		double &	covolume
	)		const

virtual

Send specific values of the parameters useful for mixture EOS based on Ideal Gas and Stiffened Gas.

Parameters

gamPinfOverGamMinusOne	\( \frac{\gamma p_{\infty}}{(\gamma-1)} \)
eRef	\( \epsilon_{ref} \)
oneOverGamMinusOne	\( \frac{1}{(\gamma-1)}\)

Reimplemented from Eos.

◆ verifyAndCorrectDensityMax() [1/2]

void EosNASG::verifyAndCorrectDensityMax	(	const double &	mass,
		double &	alpha,
		double &	density
	)		const

virtual

Modify the density if its value is above a limit value equal to \( \frac{1.}{b} - 1. \) and then correct the volume fraction based on mass.

Parameters

mass	mass (continuity)
alpha	volume fraction ( \( \alpha \))
density	density ( \( \rho \))

Reimplemented from Eos.

◆ verifyAndCorrectDensityMax() [2/2]

void EosNASG::verifyAndCorrectDensityMax ( double & density ) const

virtual

Modify the density if its value is above a limit value equal to \( \frac{1.}{b} - 1. \).

Parameters

density density ( \( \rho \))

Reimplemented from Eos.

◆ verifyAndModifyPressure()

void EosNASG::verifyAndModifyPressure ( double & pressure ) const

virtual

Modify the pressure if its value is under a limit value equal to \( -(1. - 10^{-15})*p_{\infty} + 10^{-15} \).

Parameters

pressure pressure (p)

Returns: pressure : \( if \; p < -(1. - 10^{-15})*p_{\infty} + 10^{-15} \; then \; p= -(1. - 10^{-15})*p_{\infty} + 10^{-15} \)

Reimplemented from Eos.

◆ verifyPressure()

void EosNASG::verifyPressure	(	const double &	pressure,
		const std::string &	message = `""`
	)		const

virtual

Add a message error if the pressure is too low and under a limit value equal to \( -(1. - 10^{-15})*p_{\infty} + 10^{-15} \).

Parameters

pressure	pressure (p)
message	""

Returns: Add a message in the \( errors \) vector. The message is \( " :\;too\;low\;pressure \;in\; EosNASG\;"\)

Reimplemented from Eos.

◆ vfpfh()

double EosNASG::vfpfh	(	const double &	pressure,
		const double &	enthalpy
	)		const

virtual

Compute the specific volume with the pressure and the enthalpy.

Parameters

pressure	pressure (p)
enthalpy	enthalpy (h)

Returns: specific volume (volume per mass unit) : \( v(p,h) = (h - bp -\epsilon_{ref})\frac{(\gamma-1)}{\gamma (p+p_{\infty})}+b \) from the definition of enthalpy \( h=\epsilon +pv \)

Reimplemented from Eos.

Member Data Documentation

◆ m_b

double EosNASG::m_b

private

Covolume of the fluid.

◆ m_cv

double EosNASG::m_cv

private

Volume calorific energy of the fluid.

◆ m_eRef

double EosNASG::m_eRef

private

Energy of reference of the fluid.

◆ m_gamma

double EosNASG::m_gamma

private

Adiabatic exponent of the fluid.

◆ m_pInf

double EosNASG::m_pInf

private

Infinit (reference) pressure of the fluid.

◆ m_sRef

double EosNASG::m_sRef

private

Entropy of the fluid.

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

/Users/fabien/depotsSephiroth/gitLab/ECOGEN/ecogen/src/Eos/EosNASG.h
/Users/fabien/depotsSephiroth/gitLab/ECOGEN/ecogen/src/Eos/EosNASG.cpp

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ EosNASG()

◆ ~EosNASG()

Member Function Documentation

◆ assignParametersEos()

◆ computeAcousticImpedance()

◆ computeDensity()

◆ computeDensityEnergySaturation()

◆ computeDensityHugoniot()

◆ computeDensityIsentropic()

◆ computeDensityPfinal()

◆ computeDensitySaturation()

◆ computeDensityTimesInterfaceSoundSpeedSquare()

◆ computeEnergy()

◆ computeEnthalpyIsentropic()

◆ computeEntropy()

◆ computeInterfaceSoundSpeed()

◆ computePressure()

◆ computePressureHugoniot()

◆ computePressureIsentropic()

◆ computeSoundSpeed()

◆ computeTemperature()

◆ drhodpcT()

◆ dvdhcp()

◆ dvdpch()

◆ getB()

◆ getCv()

◆ getERef()

◆ getGamma()

◆ getPInf()

◆ getSRef()

◆ getType()

◆ sendSpecialMixtureEos()

◆ verifyAndCorrectDensityMax() [1/2]

◆ verifyAndCorrectDensityMax() [2/2]

◆ verifyAndModifyPressure()

◆ verifyPressure()

◆ vfpfh()

Member Data Documentation

◆ m_b

◆ m_cv

◆ m_eRef

◆ m_gamma

◆ m_pInf

◆ m_sRef