CoolProp::IncompressibleBackend Class Reference

Inheritance diagram for CoolProp::IncompressibleBackend:

Collaboration diagram for CoolProp::IncompressibleBackend:

Public Member Functions
std::string	backend_name (void)
	Get a string representation of the backend - for instance "HelmholtzEOSMixtureBackend" for the core mixture model in CoolProp. More...
	IncompressibleBackend (IncompressibleFluid *fluid)
	The instantiator. More...
	IncompressibleBackend (const std::string &fluid_name)
	The instantiator. More...
	IncompressibleBackend (const std::vector< std::string > &component_names)
	The instantiator. More...
bool	using_mole_fractions (void)
bool	using_mass_fractions (void)
bool	using_volu_fractions (void)
void	update (CoolProp::input_pairs input_pair, double value1, double value2)
	Updating function for incompressible fluid. More...
std::string	fluid_param_string (const std::string &ParamName)
	Return a string from the backend for the mixture/fluid - backend dependent - could be CAS #, name, etc.
bool	clear ()
	Clear all the cached values. More...
void	set_reference_state (double T0=20+273.15, double p0=101325, double x0=0.0, double h0=0.0, double s0=0.0)
	Update the reference values and clear the state. More...
void	set_mole_fractions (const std::vector< CoolPropDbl > &mole_fractions)
	Set the mole fractions. More...
const std::vector< CoolPropDbl > &	get_mole_fractions (void)
	Get the mole fractions of the fluid.
void	set_mass_fractions (const std::vector< CoolPropDbl > &mass_fractions)
	Set the mass fractions. More...
void	set_volu_fractions (const std::vector< CoolPropDbl > &volu_fractions)
	Set the volume fractions. More...
void	check_status ()
	Check if the mole fractions have been set, etc.
double	rhomass (void)
	We have to override some of the functions from the AbstractState. More...
double	hmass (void)
	Return the mass enthalpy in J/kg.
double	smass (void)
	Return the molar entropy in J/mol/K.
double	umass (void)
	Return the molar internal energy in J/mol.
double	cmass (void)
	Return the mass constant pressure specific heat in J/kg/K.
double	drhodTatPx (void)
double	dsdTatPx (void)
double	dhdTatPx (void)
double	dsdTatPxdT (void)
double	dhdTatPxdT (void)
double	dsdpatTx (void)
double	dhdpatTx (void)
double	T_ref (void)
	Return the temperature in K.
double	p_ref (void)
	Return the pressure in Pa.
double	x_ref (void)
	Return the composition.
double	h_ref (void)
	Return the mass enthalpy in J/kg.
double	s_ref (void)
	Return the molar entropy in J/mol/K.
double	hmass_ref (void)
	Return the mass enthalpy in J/kg.
double	smass_ref (void)
	Return the molar entropy in J/mol/K.
CoolPropDbl	DmassP_flash (CoolPropDbl rhomass, CoolPropDbl p)
	These functions should be protected, but that requires new tests. More...
CoolPropDbl	HmassP_flash (CoolPropDbl hmass, CoolPropDbl p)
	Calculate T given pressure and enthalpy. More...
CoolPropDbl	PSmass_flash (CoolPropDbl p, CoolPropDbl smass)
	Calculate T given pressure and entropy. More...
CoolPropDbl	calc_rhomass (void)
CoolPropDbl	calc_cmass (void)
CoolPropDbl	calc_cpmass (void)
CoolPropDbl	calc_cvmass (void)
CoolPropDbl	calc_viscosity (void)
	Using this backend, calculate the viscosity in Pa-s.
CoolPropDbl	calc_conductivity (void)
	Using this backend, calculate the thermal conductivity in W/m/K.
CoolPropDbl	calc_T_freeze (void)
CoolPropDbl	calc_melting_line (int param, int given, CoolPropDbl value)
	Calculate T given pressure and internal energy **. More...
CoolPropDbl	calc_umass (void)
CoolPropDbl	calc_hmass (void)
	... and continue with the ones that depend on reference conditions.
CoolPropDbl	calc_smass (void)
CoolPropDbl	raw_calc_hmass (double T, double p, double x)
	Functions that can be used with the solver, they miss the reference values!
CoolPropDbl	raw_calc_smass (double T, double p, double x)
CoolPropDbl	calc_Tmax (void)
	Constants from the fluid object.
CoolPropDbl	calc_Tmin (void)
	Using this backend, calculate the minimum temperature in K.
CoolPropDbl	calc_fraction_min (void)
	Get the minimum fraction (mole, mass, volume) for incompressible fluid.
CoolPropDbl	calc_fraction_max (void)
	Get the maximum fraction (mole, mass, volume) for incompressible fluid.
std::string	calc_name (void)
	Using this backend, get the name of the fluid.
std::string	calc_description (void)
	Using this backend, get the description of the fluid.
Public Member Functions inherited from CoolProp::AbstractState
void	set_T (CoolPropDbl T)
	Set the internal variable T without a flash call (expert use only!)
virtual void	set_reference_stateS (const std::string &reference_state)
	Set the reference state based on a string representation. More...
virtual void	set_reference_stateD (double T, double rhomolar, double hmolar0, double smolar0)
	Set the reference state based on a thermodynamic state point specified by temperature and molar density. More...
std::vector< CoolPropDbl >	mole_fractions_liquid (void)
	Get the mole fractions of the equilibrium liquid phase.
std::vector< double >	mole_fractions_liquid_double (void)
	Get the mole fractions of the equilibrium liquid phase (but as a double for use in SWIG wrapper)
std::vector< CoolPropDbl >	mole_fractions_vapor (void)
	Get the mole fractions of the equilibrium vapor phase.
std::vector< double >	mole_fractions_vapor_double (void)
	Get the mole fractions of the equilibrium vapor phase (but as a double for use in SWIG wrapper)
virtual const std::vector< CoolPropDbl >	get_mass_fractions (void)
	Get the mass fractions of the fluid.
virtual void	update_with_guesses (CoolProp::input_pairs input_pair, double Value1, double Value2, const GuessesStructure &guesses)
	Update the state using two state variables and providing guess values Some or all of the guesses will be used - this is backend dependent.
virtual bool	available_in_high_level (void)
	A function that says whether the backend instance can be instantiated in the high-level interface In general this should be true, except for some other backends (especially the tabular backends) To disable use in high-level interface, implement this function and return false.
std::vector< std::string >	fluid_names (void)
	Return a vector of strings of the fluid names that are in use.
virtual const double	get_fluid_constant (std::size_t i, parameters param) const
	Get a constant for one of the fluids forming this mixture. More...
virtual void	set_binary_interaction_double (const std::string &CAS1, const std::string &CAS2, const std::string &parameter, const double value)
	Set binary mixture floating point parameter (EXPERT USE ONLY!!!)
virtual void	set_binary_interaction_double (const std::size_t i, const std::size_t j, const std::string &parameter, const double value)
	Set binary mixture floating point parameter (EXPERT USE ONLY!!!)
virtual void	set_binary_interaction_string (const std::string &CAS1, const std::string &CAS2, const std::string &parameter, const std::string &value)
	Set binary mixture string parameter (EXPERT USE ONLY!!!)
virtual void	set_binary_interaction_string (const std::size_t i, const std::size_t j, const std::string &parameter, const std::string &value)
	Set binary mixture string parameter (EXPERT USE ONLY!!!)
virtual double	get_binary_interaction_double (const std::string &CAS1, const std::string &CAS2, const std::string &parameter)
	Get binary mixture double value (EXPERT USE ONLY!!!)
virtual double	get_binary_interaction_double (const std::size_t i, const std::size_t j, const std::string &parameter)
	Get binary mixture double value (EXPERT USE ONLY!!!)
virtual std::string	get_binary_interaction_string (const std::string &CAS1, const std::string &CAS2, const std::string &parameter)
	Get binary mixture string value (EXPERT USE ONLY!!!)
virtual void	apply_simple_mixing_rule (std::size_t i, std::size_t j, const std::string &model)
	Apply a simple mixing rule (EXPERT USE ONLY!!!)
virtual void	set_cubic_alpha_C (const size_t i, const std::string &parameter, const double c1, const double c2, const double c3)
	Set the cubic alpha function's constants:
virtual void	set_fluid_parameter_double (const size_t i, const std::string &parameter, const double value)
	Set fluid parameter (currently the volume translation parameter for cubic)
virtual double	get_fluid_parameter_double (const size_t i, const std::string &parameter)
	Double fluid parameter (currently the volume translation parameter for cubic)
virtual bool	clear_comp_change ()
	When the composition changes, clear all cached values that are only dependent on composition, but not the thermodynamic state.
virtual const CoolProp::SimpleState &	get_reducing_state ()
	Get the state that is used in the equation of state or mixture model to reduce the state. More...
const CoolProp::SimpleState &	get_state (const std::string &state)
	Get a desired state point - backend dependent.
double	Tmin (void)
	Get the minimum temperature in K.
double	Tmax (void)
	Get the maximum temperature in K.
double	pmax (void)
	Get the maximum pressure in Pa.
double	Ttriple (void)
	Get the triple point temperature in K.
phases	phase (void)
	Get the phase of the state.
void	specify_phase (phases phase)
	Specify the phase for all further calculations with this state class.
void	unspecify_phase (void)
	Unspecify the phase and go back to calculating it based on the inputs.
double	T_critical (void)
	Return the critical temperature in K.
double	p_critical (void)
	Return the critical pressure in Pa.
double	rhomolar_critical (void)
	Return the critical molar density in mol/m^3.
double	rhomass_critical (void)
	Return the critical mass density in kg/m^3.
std::vector< CriticalState >	all_critical_points (void)
	Return the vector of critical points, including points that are unstable or correspond to negative pressure.
void	build_spinodal ()
	Construct the spinodal curve for the mixture (or pure fluid)
SpinodalData	get_spinodal_data ()
	Get the data from the spinodal curve constructed in the call to build_spinodal()
void	criticality_contour_values (double &L1star, double &M1star)
	Calculate the criticality contour values \(\mathcal{L}_1^*\) and \(\mathcal{M}_1^*\).
double	tangent_plane_distance (const double T, const double p, const std::vector< double > &w, const double rhomolar_guess=-1)
	Return the tangent plane distance for a given trial composition w. More...
double	T_reducing (void)
	Return the reducing point temperature in K.
double	rhomolar_reducing (void)
	Return the molar density at the reducing point in mol/m^3.
double	rhomass_reducing (void)
	Return the mass density at the reducing point in kg/m^3.
double	p_triple (void)
	Return the triple point pressure in Pa.
std::string	name ()
	Return the name - backend dependent.
std::string	description ()
	Return the description - backend dependent.
double	dipole_moment ()
	Return the dipole moment in C-m (1 D = 3.33564e-30 C-m)
double	keyed_output (parameters key)
	Retrieve a value by key.
double	trivial_keyed_output (parameters key)
	A trivial keyed output like molar mass that does not depend on the state.
double	saturated_liquid_keyed_output (parameters key)
	Get an output from the saturated liquid state by key.
double	saturated_vapor_keyed_output (parameters key)
	Get an output from the saturated vapor state by key.
double	T (void)
	Return the temperature in K.
double	rhomolar (void)
	Return the molar density in mol/m^3.
double	rhomass (void)
	Return the mass density in kg/m^3.
double	p (void)
	Return the pressure in Pa.
double	Q (void)
	Return the vapor quality (mol/mol); Q = 0 for saturated liquid.
double	tau (void)
	Return the reciprocal of the reduced temperature ( \(\tau = T_c/T\))
double	delta (void)
	Return the reduced density ( \(\delta = \rho/\rho_c\))
double	molar_mass (void)
	Return the molar mass in kg/mol.
double	acentric_factor (void)
	Return the acentric factor.
double	gas_constant (void)
	Return the mole-fraction weighted gas constant in J/mol/K.
double	Bvirial (void)
	Return the B virial coefficient.
double	dBvirial_dT (void)
	Return the derivative of the B virial coefficient with respect to temperature.
double	Cvirial (void)
	Return the C virial coefficient.
double	dCvirial_dT (void)
	Return the derivative of the C virial coefficient with respect to temperature.
double	compressibility_factor (void)
	Return the compressibility factor \( Z = p/(rho R T) \).
double	hmolar (void)
	Return the molar enthalpy in J/mol.
double	hmolar_residual (void)
	Return the residual molar enthalpy in J/mol.
double	hmass (void)
	Return the mass enthalpy in J/kg.
double	hmolar_excess (void)
	Return the excess molar enthalpy in J/mol.
double	hmass_excess (void)
	Return the excess mass enthalpy in J/kg.
double	smolar (void)
	Return the molar entropy in J/mol/K.
double	smolar_residual (void)
	Return the residual molar entropy (as a function of temperature and density) in J/mol/K.
double	smass (void)
	Return the molar entropy in J/kg/K.
double	smolar_excess (void)
	Return the molar entropy in J/mol/K.
double	smass_excess (void)
	Return the molar entropy in J/kg/K.
double	umolar (void)
	Return the molar internal energy in J/mol.
double	umass (void)
	Return the mass internal energy in J/kg.
double	umolar_excess (void)
	Return the excess internal energy in J/mol.
double	umass_excess (void)
	Return the excess internal energy in J/kg.
double	cpmolar (void)
	Return the molar constant pressure specific heat in J/mol/K.
double	cpmass (void)
	Return the mass constant pressure specific heat in J/kg/K.
double	cp0molar (void)
	Return the molar constant pressure specific heat for ideal gas part only in J/mol/K.
double	cp0mass (void)
	Return the mass constant pressure specific heat for ideal gas part only in J/kg/K.
double	cvmolar (void)
	Return the molar constant volume specific heat in J/mol/K.
double	cvmass (void)
	Return the mass constant volume specific heat in J/kg/K.
double	gibbsmolar (void)
	Return the Gibbs energy in J/mol.
double	gibbsmolar_residual (void)
	Return the residual Gibbs energy in J/mol.
double	gibbsmass (void)
	Return the Gibbs energy in J/kg.
double	gibbsmolar_excess (void)
	Return the excess Gibbs energy in J/mol.
double	gibbsmass_excess (void)
	Return the excess Gibbs energy in J/kg.
double	helmholtzmolar (void)
	Return the Helmholtz energy in J/mol.
double	helmholtzmass (void)
	Return the Helmholtz energy in J/kg.
double	helmholtzmolar_excess (void)
	Return the excess Helmholtz energy in J/mol.
double	helmholtzmass_excess (void)
	Return the excess Helmholtz energy in J/kg.
double	volumemolar_excess (void)
	Return the excess volume in m^3/mol.
double	volumemass_excess (void)
	Return the excess volume in m^3/kg.
double	speed_sound (void)
	Return the speed of sound in m/s.
double	isothermal_compressibility (void)
	Return the isothermal compressibility \( \kappa = -\frac{1}{v}\left.\frac{\partial v}{\partial p}\right|_T=\frac{1}{\rho}\left.\frac{\partial \rho}{\partial p}\right|_T\) in 1/Pa.
double	isobaric_expansion_coefficient (void)
	Return the isobaric expansion coefficient \( \beta = \frac{1}{v}\left.\frac{\partial v}{\partial T}\right|_p = -\frac{1}{\rho}\left.\frac{\partial \rho}{\partial T}\right|_p\) in 1/K.
double	isentropic_expansion_coefficient (void)
	Return the isentropic expansion coefficient \( \kappa_s = -\frac{c_p}{c_v}\frac{v}{p}\left.\frac{\partial p}{\partial v}\right|_T = \frac{\rho}{p}\left.\frac{\partial p}{\partial \rho}\right|_s\).
double	fugacity_coefficient (std::size_t i)
	Return the fugacity coefficient of the i-th component of the mixture.
std::vector< double >	fugacity_coefficients ()
	Return a vector of the fugacity coefficients for all components in the mixture.
double	fugacity (std::size_t i)
	Return the fugacity of the i-th component of the mixture.
double	chemical_potential (std::size_t i)
	Return the chemical potential of the i-th component of the mixture.
double	fundamental_derivative_of_gas_dynamics (void)
	Return the fundamental derivative of gas dynamics \( \Gamma \). More...
double	PIP ()
	Return the phase identification parameter (PIP) of G. Venkatarathnam and L.R. Oellrich, "Identification of the phase of a fluid using partial derivatives of pressure, volume, and temperature without reference to saturation properties: Applications in phase equilibria calculations".
void	true_critical_point (double &T, double &rho)
	Calculate the "true" critical point for pure fluids where dpdrho|T and d2p/drho2|T are equal to zero.
void	ideal_curve (const std::string &type, std::vector< double > &T, std::vector< double > &p)
	Calculate an ideal curve for a pure fluid. More...
CoolPropDbl	first_partial_deriv (parameters Of, parameters Wrt, parameters Constant)
	The first partial derivative in homogeneous phases. More...
CoolPropDbl	second_partial_deriv (parameters Of1, parameters Wrt1, parameters Constant1, parameters Wrt2, parameters Constant2)
	The second partial derivative in homogeneous phases. More...
CoolPropDbl	first_saturation_deriv (parameters Of1, parameters Wrt1)
	The first partial derivative along the saturation curve. More...
CoolPropDbl	second_saturation_deriv (parameters Of1, parameters Wrt1, parameters Wrt2)
	The second partial derivative along the saturation curve. More...
double	first_two_phase_deriv (parameters Of, parameters Wrt, parameters Constant)
	Calculate the first "two-phase" derivative as described by Thorade and Sadaat, EAS, 2013. More...
double	second_two_phase_deriv (parameters Of, parameters Wrt1, parameters Constant1, parameters Wrt2, parameters Constant2)
	Calculate the second "two-phase" derivative as described by Thorade and Sadaat, EAS, 2013. More...
double	first_two_phase_deriv_splined (parameters Of, parameters Wrt, parameters Constant, double x_end)
	Calculate the first "two-phase" derivative as described by Thorade and Sadaat, EAS, 2013. More...
void	build_phase_envelope (const std::string &type="")
	Construct the phase envelope for a mixture. More...
const CoolProp::PhaseEnvelopeData &	get_phase_envelope_data ()
	After having calculated the phase envelope, return the phase envelope data.
virtual bool	has_melting_line (void)
	Return true if the fluid has a melting line - default is false, but can be re-implemented by derived class.
double	melting_line (int param, int given, double value)
	Return a value from the melting line. More...
double	saturation_ancillary (parameters param, int Q, parameters given, double value)
	Return the value from a saturation ancillary curve (if the backend implements it) More...
double	viscosity (void)
	Return the viscosity in Pa-s.
void	viscosity_contributions (CoolPropDbl &dilute, CoolPropDbl &initial_density, CoolPropDbl &residual, CoolPropDbl &critical)
	Return the viscosity contributions, each in Pa-s.
double	conductivity (void)
	Return the thermal conductivity in W/m/K.
void	conductivity_contributions (CoolPropDbl &dilute, CoolPropDbl &initial_density, CoolPropDbl &residual, CoolPropDbl &critical)
	Return the thermal conductivity contributions, each in W/m/K.
double	surface_tension (void)
	Return the surface tension in N/m.
double	Prandtl (void)
	Return the Prandtl number (dimensionless)
void	conformal_state (const std::string &reference_fluid, CoolPropDbl &T, CoolPropDbl &rhomolar)
	Find the conformal state needed for ECS. More...
void	change_EOS (const std::size_t i, const std::string &EOS_name)
	Change the equation of state for a given component to a specified EOS. More...
CoolPropDbl	alpha0 (void)
	Return the term \( \alpha^0 \).
CoolPropDbl	dalpha0_dDelta (void)
	Return the term \( \alpha^0_{\delta} \).
CoolPropDbl	dalpha0_dTau (void)
	Return the term \( \alpha^0_{\tau} \).
CoolPropDbl	d2alpha0_dDelta2 (void)
	Return the term \( \alpha^0_{\delta\delta} \).
CoolPropDbl	d2alpha0_dDelta_dTau (void)
	Return the term \( \alpha^0_{\delta\tau} \).
CoolPropDbl	d2alpha0_dTau2 (void)
	Return the term \( \alpha^0_{\tau\tau} \).
CoolPropDbl	d3alpha0_dTau3 (void)
	Return the term \( \alpha^0_{\tau\tau\tau} \).
CoolPropDbl	d3alpha0_dDelta_dTau2 (void)
	Return the term \( \alpha^0_{\delta\tau\tau} \).
CoolPropDbl	d3alpha0_dDelta2_dTau (void)
	Return the term \( \alpha^0_{\delta\delta\tau} \).
CoolPropDbl	d3alpha0_dDelta3 (void)
	Return the term \( \alpha^0_{\delta\delta\delta} \).
CoolPropDbl	alphar (void)
	Return the term \( \alpha^r \).
CoolPropDbl	dalphar_dDelta (void)
	Return the term \( \alpha^r_{\delta} \).
CoolPropDbl	dalphar_dTau (void)
	Return the term \( \alpha^r_{\tau} \).
CoolPropDbl	d2alphar_dDelta2 (void)
	Return the term \( \alpha^r_{\delta\delta} \).
CoolPropDbl	d2alphar_dDelta_dTau (void)
	Return the term \( \alpha^r_{\delta\tau} \).
CoolPropDbl	d2alphar_dTau2 (void)
	Return the term \( \alpha^r_{\tau\tau} \).
CoolPropDbl	d3alphar_dDelta3 (void)
	Return the term \( \alpha^r_{\delta\delta\delta} \).
CoolPropDbl	d3alphar_dDelta2_dTau (void)
	Return the term \( \alpha^r_{\delta\delta\tau} \).
CoolPropDbl	d3alphar_dDelta_dTau2 (void)
	Return the term \( \alpha^r_{\delta\tau\tau} \).
CoolPropDbl	d3alphar_dTau3 (void)
	Return the term \( \alpha^r_{\tau\tau\tau} \).
CoolPropDbl	d4alphar_dDelta4 (void)
	Return the term \( \alpha^r_{\delta\delta\delta\delta} \).
CoolPropDbl	d4alphar_dDelta3_dTau (void)
	Return the term \( \alpha^r_{\delta\delta\delta\tau} \).
CoolPropDbl	d4alphar_dDelta2_dTau2 (void)
	Return the term \( \alpha^r_{\delta\delta\tau\tau} \).
CoolPropDbl	d4alphar_dDelta_dTau3 (void)
	Return the term \( \alpha^r_{\delta\tau\tau\tau} \).
CoolPropDbl	d4alphar_dTau4 (void)
	Return the term \( \alpha^r_{\tau\tau\tau\tau} \).

Protected Member Functions
void	set_fractions (const std::vector< CoolPropDbl > &fractions)
	Set the fractions. More...
CoolPropDbl	calc_first_partial_deriv (parameters Of, parameters Wrt, parameters Constant)
	Calculate the first partial derivative for the desired derivative.
double	calc_drhodTatPx (double T, double p, double x)
	Partial derivative of density with respect to temperature at constant pressure and composition.
double	calc_dsdTatPx (double T, double p, double x)
	Partial derivative of entropy with respect to temperature at constant pressure and composition.
double	calc_dhdTatPx (double T, double p, double x)
	Partial derivative of enthalpy with respect to temperature at constant pressure and composition.
double	calc_dsdTatPxdT (double T, double p, double x)
	Partial derivative of entropy with respect to temperature at constant pressure and composition integrated in temperature.
double	calc_dhdTatPxdT (double T, double p, double x)
	Partial derivative of enthalpy with respect to temperature at constant pressure and composition integrated in temperature.
double	calc_dsdpatTx (double rho, double drhodTatPx)
	Partial derivative of entropy with respect to pressure at constant temperature and composition \[ \left( \frac{\partial s}{\partial p} \right)_T = - \left( \frac{\partial v}{\partial T} \right)_p = \rho^{-2} \left( \frac{\partial \rho}{\partial T} \right)_p \right) \] . More...
double	calc_dhdpatTx (double T, double rho, double drhodTatPx)
	Partial derivative of enthalpy with respect to pressure at constant temperature and composition \[ \left( \frac{\partial h}{\partial p} \right)_T = v - T \left( \frac{\partial v}{\partial T} \right)_p = \rho^{-1} \left( 1 + T \rho^{-1} \left( \frac{\partial \rho}{\partial T} \right)_p \right) \] . More...
Protected Member Functions inherited from CoolProp::AbstractState
bool	isSupercriticalPhase (void)
bool	isHomogeneousPhase (void)
bool	isTwoPhase (void)
virtual CoolPropDbl	calc_hmolar (void)
	Using this backend, calculate the molar enthalpy in J/mol.
virtual CoolPropDbl	calc_hmolar_residual (void)
	Using this backend, calculate the residual molar enthalpy in J/mol.
virtual CoolPropDbl	calc_smolar (void)
	Using this backend, calculate the molar entropy in J/mol/K.
virtual CoolPropDbl	calc_smolar_residual (void)
	Using this backend, calculate the residual molar entropy in J/mol/K.
virtual CoolPropDbl	calc_umolar (void)
	Using this backend, calculate the molar internal energy in J/mol.
virtual CoolPropDbl	calc_cpmolar (void)
	Using this backend, calculate the molar constant-pressure specific heat in J/mol/K.
virtual CoolPropDbl	calc_cpmolar_idealgas (void)
	Using this backend, calculate the ideal gas molar constant-pressure specific heat in J/mol/K.
virtual CoolPropDbl	calc_cvmolar (void)
	Using this backend, calculate the molar constant-volume specific heat in J/mol/K.
virtual CoolPropDbl	calc_gibbsmolar (void)
	Using this backend, calculate the molar Gibbs function in J/mol.
virtual CoolPropDbl	calc_gibbsmolar_residual (void)
	Using this backend, calculate the residual molar Gibbs function in J/mol.
virtual CoolPropDbl	calc_helmholtzmolar (void)
	Using this backend, calculate the molar Helmholtz energy in J/mol.
virtual CoolPropDbl	calc_speed_sound (void)
	Using this backend, calculate the speed of sound in m/s.
virtual CoolPropDbl	calc_isothermal_compressibility (void)
	Using this backend, calculate the isothermal compressibility \( \kappa = -\frac{1}{v}\left.\frac{\partial v}{\partial p}\right|_T=\frac{1}{\rho}\left.\frac{\partial \rho}{\partial p}\right|_T\) in 1/Pa.
virtual CoolPropDbl	calc_isobaric_expansion_coefficient (void)
	Using this backend, calculate the isobaric expansion coefficient \( \beta = \frac{1}{v}\left.\frac{\partial v}{\partial T}\right|_p = -\frac{1}{\rho}\left.\frac{\partial \rho}{\partial T}\right|_p\) in 1/K.
virtual CoolPropDbl	calc_isentropic_expansion_coefficient (void)
	Using this backend, calculate the isentropic expansion coefficient \( \kappa_s = -\frac{c_p}{c_v}\frac{v}{p}\left.\frac{\partial p}{\partial v}\right|_T = \frac{\rho}{p}\left.\frac{\partial p}{\partial \rho}\right|_s\).
virtual CoolPropDbl	calc_surface_tension (void)
	Using this backend, calculate the surface tension in N/m.
virtual CoolPropDbl	calc_molar_mass (void)
	Using this backend, calculate the molar mass in kg/mol.
virtual CoolPropDbl	calc_acentric_factor (void)
	Using this backend, calculate the acentric factor.
virtual CoolPropDbl	calc_pressure (void)
	Using this backend, calculate the pressure in Pa.
virtual CoolPropDbl	calc_gas_constant (void)
	Using this backend, calculate the universal gas constant \(R_u\) in J/mol/K.
virtual CoolPropDbl	calc_fugacity_coefficient (std::size_t i)
	Using this backend, calculate the fugacity coefficient (dimensionless)
virtual std::vector< CoolPropDbl >	calc_fugacity_coefficients ()
	Using this backend, calculate the fugacity in Pa.
virtual CoolPropDbl	calc_fugacity (std::size_t i)
	Using this backend, calculate the fugacity in Pa.
virtual CoolPropDbl	calc_chemical_potential (std::size_t i)
	Using this backend, calculate the chemical potential in J/mol.
virtual CoolPropDbl	calc_PIP (void)
	Using this backend, calculate the phase identification parameter (PIP)
virtual void	calc_excess_properties (void)
	Using this backend, calculate and cache the excess properties.
virtual CoolPropDbl	calc_alphar (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r\) (dimensionless)
virtual CoolPropDbl	calc_dalphar_dDelta (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta}\) (dimensionless)
virtual CoolPropDbl	calc_dalphar_dTau (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d2alphar_dDelta2 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\delta}\) (dimensionless)
virtual CoolPropDbl	calc_d2alphar_dDelta_dTau (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d2alphar_dTau2 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\tau\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d3alphar_dDelta3 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\delta\delta}\) (dimensionless)
virtual CoolPropDbl	calc_d3alphar_dDelta2_dTau (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\delta\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d3alphar_dDelta_dTau2 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\tau\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d3alphar_dTau3 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\tau\tau\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d4alphar_dDelta4 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\delta\delta\delta}\) (dimensionless)
virtual CoolPropDbl	calc_d4alphar_dDelta3_dTau (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\delta\delta\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d4alphar_dDelta2_dTau2 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\delta\tau\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d4alphar_dDelta_dTau3 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\delta\tau\tau\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d4alphar_dTau4 (void)
	Using this backend, calculate the residual Helmholtz energy term \(\alpha^r_{\tau\tau\tau\tau}\) (dimensionless)
virtual CoolPropDbl	calc_alpha0 (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0\) (dimensionless)
virtual CoolPropDbl	calc_dalpha0_dDelta (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\delta}\) (dimensionless)
virtual CoolPropDbl	calc_dalpha0_dTau (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d2alpha0_dDelta_dTau (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\delta\delta}\) (dimensionless)
virtual CoolPropDbl	calc_d2alpha0_dDelta2 (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\delta\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d2alpha0_dTau2 (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\tau\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d3alpha0_dDelta3 (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\delta\delta\delta}\) (dimensionless)
virtual CoolPropDbl	calc_d3alpha0_dDelta2_dTau (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\delta\delta\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d3alpha0_dDelta_dTau2 (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\delta\tau\tau}\) (dimensionless)
virtual CoolPropDbl	calc_d3alpha0_dTau3 (void)
	Using this backend, calculate the ideal-gas Helmholtz energy term \(\alpha^0_{\tau\tau\tau}\) (dimensionless)
virtual void	calc_reducing_state (void)
virtual CoolPropDbl	calc_pmax (void)
	Using this backend, calculate the maximum pressure in Pa.
virtual CoolPropDbl	calc_GWP20 (void)
	Using this backend, calculate the 20-year global warming potential (GWP)
virtual CoolPropDbl	calc_GWP100 (void)
	Using this backend, calculate the 100-year global warming potential (GWP)
virtual CoolPropDbl	calc_GWP500 (void)
	Using this backend, calculate the 500-year global warming potential (GWP)
virtual CoolPropDbl	calc_ODP (void)
	Using this backend, calculate the ozone depletion potential (ODP)
virtual CoolPropDbl	calc_flame_hazard (void)
	Using this backend, calculate the flame hazard.
virtual CoolPropDbl	calc_health_hazard (void)
	Using this backend, calculate the health hazard.
virtual CoolPropDbl	calc_physical_hazard (void)
	Using this backend, calculate the physical hazard.
virtual CoolPropDbl	calc_dipole_moment (void)
	Using this backend, calculate the dipole moment in C-m (1 D = 3.33564e-30 C-m)
virtual CoolPropDbl	calc_second_partial_deriv (parameters Of1, parameters Wrt1, parameters Constant1, parameters Wrt2, parameters Constant2)
	Calculate the second partial derivative using the given backend.
virtual CoolPropDbl	calc_reduced_density (void)
	Using this backend, calculate the reduced density (rho/rhoc)
virtual CoolPropDbl	calc_reciprocal_reduced_temperature (void)
	Using this backend, calculate the reciprocal reduced temperature (Tc/T)
virtual CoolPropDbl	calc_Bvirial (void)
	Using this backend, calculate the second virial coefficient.
virtual CoolPropDbl	calc_Cvirial (void)
	Using this backend, calculate the third virial coefficient.
virtual CoolPropDbl	calc_dBvirial_dT (void)
	Using this backend, calculate the derivative dB/dT.
virtual CoolPropDbl	calc_dCvirial_dT (void)
	Using this backend, calculate the derivative dC/dT.
virtual CoolPropDbl	calc_compressibility_factor (void)
	Using this backend, calculate the compressibility factor Z \( Z = p/(\rho R T) \).
virtual CoolPropDbl	calc_Ttriple (void)
	Using this backend, get the triple point temperature in K.
virtual CoolPropDbl	calc_p_triple (void)
	Using this backend, get the triple point pressure in Pa.
virtual CoolPropDbl	calc_T_critical (void)
	Using this backend, get the critical point temperature in K.
virtual CoolPropDbl	calc_T_reducing (void)
	Using this backend, get the reducing point temperature in K.
virtual CoolPropDbl	calc_p_critical (void)
	Using this backend, get the critical point pressure in Pa.
virtual CoolPropDbl	calc_p_reducing (void)
	Using this backend, get the reducing point pressure in Pa.
virtual CoolPropDbl	calc_rhomolar_critical (void)
	Using this backend, get the critical point molar density in mol/m^3.
virtual CoolPropDbl	calc_rhomass_critical (void)
	Using this backend, get the critical point mass density in kg/m^3 - Added for IF97Backend which is mass based.
virtual CoolPropDbl	calc_rhomolar_reducing (void)
	Using this backend, get the reducing point molar density in mol/m^3.
virtual void	calc_phase_envelope (const std::string &type)
	Using this backend, construct the phase envelope, the variable type describes the type of phase envelope to be built.
virtual CoolPropDbl	calc_hmass_excess (void)
virtual CoolPropDbl	calc_smass_excess (void)
virtual CoolPropDbl	calc_cp0mass (void)
virtual CoolPropDbl	calc_umass_excess (void)
virtual CoolPropDbl	calc_gibbsmass (void)
virtual CoolPropDbl	calc_gibbsmass_excess (void)
virtual CoolPropDbl	calc_helmholtzmass (void)
virtual CoolPropDbl	calc_helmholtzmass_excess (void)
virtual CoolPropDbl	calc_volumemass_excess (void)
virtual void	update_states (void)
	Update the states after having changed the reference state for enthalpy and entropy.
virtual CoolPropDbl	calc_saturation_ancillary (parameters param, int Q, parameters given, double value)
virtual phases	calc_phase (void)
	Using this backend, calculate the phase.
virtual void	calc_specify_phase (phases phase)
	Using this backend, specify the phase to be used for all further calculations.
virtual void	calc_unspecify_phase (void)
	Using this backend, unspecify the phase.
virtual std::vector< std::string >	calc_fluid_names (void)
	Using this backend, get a vector of fluid names.
virtual const CoolProp::SimpleState &	calc_state (const std::string &state)
	Using this backend, calculate a phase given by the state string. More...
virtual const CoolProp::PhaseEnvelopeData &	calc_phase_envelope_data (void)
virtual std::vector< CoolPropDbl >	calc_mole_fractions_liquid (void)
virtual std::vector< CoolPropDbl >	calc_mole_fractions_vapor (void)
virtual const std::vector< CoolPropDbl >	calc_mass_fractions (void)
virtual CoolPropDbl	calc_first_saturation_deriv (parameters Of1, parameters Wrt1)
virtual CoolPropDbl	calc_second_saturation_deriv (parameters Of1, parameters Wrt1, parameters Wrt2)
virtual CoolPropDbl	calc_first_two_phase_deriv (parameters Of, parameters Wrt, parameters Constant)
virtual CoolPropDbl	calc_second_two_phase_deriv (parameters Of, parameters Wrt, parameters Constant, parameters Wrt2, parameters Constant2)
virtual CoolPropDbl	calc_first_two_phase_deriv_splined (parameters Of, parameters Wrt, parameters Constant, CoolPropDbl x_end)
virtual CoolPropDbl	calc_saturated_liquid_keyed_output (parameters key)
virtual CoolPropDbl	calc_saturated_vapor_keyed_output (parameters key)
virtual void	calc_ideal_curve (const std::string &type, std::vector< double > &T, std::vector< double > &p)
virtual CoolPropDbl	calc_T (void)
	Using this backend, get the temperature.
virtual CoolPropDbl	calc_rhomolar (void)
	Using this backend, get the molar density in mol/m^3.
virtual double	calc_tangent_plane_distance (const double T, const double p, const std::vector< double > &w, const double rhomolar_guess)
	Using this backend, calculate the tangent plane distance for a given trial composition.
virtual void	calc_true_critical_point (double &T, double &rho)
	Using this backend, return true critical point where dp/drho|T = 0 and d2p/drho^2|T = 0.
virtual void	calc_conformal_state (const std::string &reference_fluid, CoolPropDbl &T, CoolPropDbl &rhomolar)
virtual void	calc_viscosity_contributions (CoolPropDbl &dilute, CoolPropDbl &initial_density, CoolPropDbl &residual, CoolPropDbl &critical)
virtual void	calc_conductivity_contributions (CoolPropDbl &dilute, CoolPropDbl &initial_density, CoolPropDbl &residual, CoolPropDbl &critical)
virtual std::vector< CriticalState >	calc_all_critical_points (void)
virtual void	calc_build_spinodal ()
virtual SpinodalData	calc_get_spinodal_data ()
virtual void	calc_criticality_contour_values (double &L1star, double &M1star)
virtual void	mass_to_molar_inputs (CoolProp::input_pairs &input_pair, CoolPropDbl &value1, CoolPropDbl &value2)
	Convert mass-based input pair to molar-based input pair; If molar-based, do nothing. More...
virtual void	calc_change_EOS (const std::size_t i, const std::string &EOS_name)
	Change the equation of state for a given component to a specified EOS.

Protected Attributes
std::vector< CoolPropDbl >	_fractions
	Bulk values, state variables.
CachedElement	_T_ref
	Reference values, no need to calculate them each time.
CachedElement	_p_ref
CachedElement	_x_ref
CachedElement	_h_ref
CachedElement	_s_ref
CachedElement	_hmass_ref
CachedElement	_smass_ref
CachedElement	_cmass
	Additional cached elements used for the partial derivatives.
CachedElement	_hmass
CachedElement	_rhomass
CachedElement	_smass
CachedElement	_umass
CachedElement	_drhodTatPx
CachedElement	_dsdTatPx
CachedElement	_dhdTatPx
CachedElement	_dsdTatPxdT
CachedElement	_dhdTatPxdT
CachedElement	_dsdpatTx
CachedElement	_dhdpatTx
IncompressibleFluid *	fluid
Protected Attributes inherited from CoolProp::AbstractState
long	_fluid_type
	Some administrative variables.
phases	_phase
	The key for the phase from CoolProp::phases enum.
phases	imposed_phase_index
	If the phase is imposed, the imposed phase index.
SimpleState	_critical
	Two important points.
SimpleState	_reducing
CachedElement	_molar_mass
	Molar mass [mol/kg].
CachedElement	_gas_constant
	Universal gas constant [J/mol/K].
double	_rhomolar
	Bulk values.
double	_T
double	_p
double	_Q
double	_R
CachedElement	_tau
CachedElement	_delta
CachedElement	_viscosity
	Transport properties.
CachedElement	_conductivity
CachedElement	_surface_tension
CachedElement	_hmolar
CachedElement	_smolar
CachedElement	_umolar
CachedElement	_logp
CachedElement	_logrhomolar
CachedElement	_cpmolar
CachedElement	_cp0molar
CachedElement	_cvmolar
CachedElement	_speed_sound
CachedElement	_gibbsmolar
CachedElement	_helmholtzmolar
CachedElement	_hmolar_residual
	Residual properties.
CachedElement	_smolar_residual
CachedElement	_gibbsmolar_residual
CachedElement	_hmolar_excess
	Excess properties.
CachedElement	_smolar_excess
CachedElement	_gibbsmolar_excess
CachedElement	_umolar_excess
CachedElement	_volumemolar_excess
CachedElement	_helmholtzmolar_excess
CachedElement	_rhoLanc
	Ancillary values.
CachedElement	_rhoVanc
CachedElement	_pLanc
CachedElement	_pVanc
CachedElement	_TLanc
CachedElement	_TVanc
CachedElement	_fugacity_coefficient
CachedElement	_rho_spline
	Smoothing values.
CachedElement	_drho_spline_dh__constp
CachedElement	_drho_spline_dp__consth
CachedElement	_alpha0
	Cached low-level elements for in-place calculation of other properties.
CachedElement	_dalpha0_dTau
CachedElement	_dalpha0_dDelta
CachedElement	_d2alpha0_dTau2
CachedElement	_d2alpha0_dDelta_dTau
CachedElement	_d2alpha0_dDelta2
CachedElement	_d3alpha0_dTau3
CachedElement	_d3alpha0_dDelta_dTau2
CachedElement	_d3alpha0_dDelta2_dTau
CachedElement	_d3alpha0_dDelta3
CachedElement	_alphar
CachedElement	_dalphar_dTau
CachedElement	_dalphar_dDelta
CachedElement	_d2alphar_dTau2
CachedElement	_d2alphar_dDelta_dTau
CachedElement	_d2alphar_dDelta2
CachedElement	_d3alphar_dTau3
CachedElement	_d3alphar_dDelta_dTau2
CachedElement	_d3alphar_dDelta2_dTau
CachedElement	_d3alphar_dDelta3
CachedElement	_d4alphar_dTau4
CachedElement	_d4alphar_dDelta_dTau3
CachedElement	_d4alphar_dDelta2_dTau2
CachedElement	_d4alphar_dDelta3_dTau
CachedElement	_d4alphar_dDelta4
CachedElement	_dalphar_dDelta_lim
CachedElement	_d2alphar_dDelta2_lim
CachedElement	_d2alphar_dDelta_dTau_lim
CachedElement	_d3alphar_dDelta2_dTau_lim
CachedElement	_rhoLmolar
	Two-Phase variables.
CachedElement	_rhoVmolar

Additional Inherited Members
Static Public Member Functions inherited from CoolProp::AbstractState
static AbstractState *	factory (const std::string &backend, const std::string &fluid_names)
	A factory function to return a pointer to a new-allocated instance of one of the backends. More...
static AbstractState *	factory (const std::string &backend, const std::vector< std::string > &fluid_names)
	A factory function to return a pointer to a new-allocated instance of one of the backends. More...

Constructor & Destructor Documentation

IncompressibleBackend() [1/3]

CoolProp::IncompressibleBackend::IncompressibleBackend

(

IncompressibleFluid *

fluid

)

The instantiator.

Parameters

fluid

object, mostly for testing purposes

IncompressibleBackend() [2/3]

CoolProp::IncompressibleBackend::IncompressibleBackend

(

const std::string &

fluid_name

)

The instantiator.

Parameters

fluid_name

the string with the fluid name

IncompressibleBackend() [3/3]

CoolProp::IncompressibleBackend::IncompressibleBackend

(

const std::vector< std::string > &

component_names

)

The instantiator.

Parameters

component_names

The vector of strings of the fluid components, without file ending

Member Function Documentation

backend_name()

std::string CoolProp::IncompressibleBackend::backend_name ( void  )

inlinevirtual

Get a string representation of the backend - for instance "HelmholtzEOSMixtureBackend" for the core mixture model in CoolProp.

Must be overloaded by the backend to provide the backend's name

Implements CoolProp::AbstractState.

calc_dhdpatTx()

double CoolProp::IncompressibleBackend::calc_dhdpatTx ( double  T, double  rho, double  drhodTatPx  )

protected

Partial derivative of enthalpy with respect to pressure at constant temperature and composition

\[ \left( \frac{\partial h}{\partial p} \right)_T = v - T \left( \frac{\partial v}{\partial T} \right)_p = \rho^{-1} \left( 1 + T \rho^{-1} \left( \frac{\partial \rho}{\partial T} \right)_p \right) \]

.

Partial derivative of enthalpy with respect to pressure at constant temperature and composition.

calc_dsdpatTx()

double CoolProp::IncompressibleBackend::calc_dsdpatTx ( double  rho, double  drhodTatPx  )

protected

Partial derivative of entropy with respect to pressure at constant temperature and composition

\[ \left( \frac{\partial s}{\partial p} \right)_T = - \left( \frac{\partial v}{\partial T} \right)_p = \rho^{-2} \left( \frac{\partial \rho}{\partial T} \right)_p \right) \]

.

Partial derivative of entropy with respect to pressure at constant temperature and composition.

calc_melting_line()

CoolPropDbl CoolProp::IncompressibleBackend::calc_melting_line ( int  param, int  given, CoolPropDbl  value  )

virtual

Calculate T given pressure and internal energy **.

We start with the functions that do not need a reference state

Reimplemented from CoolProp::AbstractState.

calc_rhomass()

CoolPropDbl CoolProp::IncompressibleBackend::calc_rhomass ( void  )

inlinevirtual

Parameters

umass	The mass internal energy in J/kg
p	The pressure in Pa

Returns

T The temperature in KWe start with the functions that do not need a reference state

Reimplemented from CoolProp::AbstractState.

clear()

bool CoolProp::IncompressibleBackend::clear ( )

virtual

Clear all the cached values.

Additional cached elements used for the partial derivatives

Reimplemented from CoolProp::AbstractState.

DmassP_flash()

CoolPropDbl CoolProp::IncompressibleBackend::DmassP_flash	(	CoolPropDbl	rhomass,
		CoolPropDbl	p
	)

These functions should be protected, but that requires new tests.

Calculate T given pressure and density.

I'll leave that as a TODO item for now.Calculate T given pressure and density

Parameters

rhomass	The mass density in kg/m^3
p	The pressure in Pa

Returns

T The temperature in K

Parameters

rhomass	The mass density in kg/m^3
p	The pressure in Pa

Returns

T The temperature in K

HmassP_flash()

CoolPropDbl CoolProp::IncompressibleBackend::HmassP_flash	(	CoolPropDbl	hmass,
		CoolPropDbl	p
	)

Calculate T given pressure and enthalpy.

Parameters

hmass	The mass enthalpy in J/kg
p	The pressure in Pa

Returns

T The temperature in K

PSmass_flash()

CoolPropDbl CoolProp::IncompressibleBackend::PSmass_flash	(	CoolPropDbl	p,
		CoolPropDbl	smass
	)

Calculate T given pressure and entropy.

Parameters

smass	The mass entropy in J/kg/K
p	The pressure in Pa

Returns

T The temperature in K

rhomass()

double CoolProp::IncompressibleBackend::rhomass

(

void

)

We have to override some of the functions from the AbstractState.

The incompressibles are only mass-based and do not support conversion from molar to specific quantities. We also have a few new chaced variables that we need.Return the mass density in kg/m^3

set_fractions()

void CoolProp::IncompressibleBackend::set_fractions ( const std::vector< CoolPropDbl > &  fractions )

protected

Set the fractions.

Parameters

fractions

The vector of fractions of the components converted to the correct input

set_mass_fractions()

void CoolProp::IncompressibleBackend::set_mass_fractions ( const std::vector< CoolPropDbl > &  mass_fractions )

virtual

Set the mass fractions.

Parameters

mass_fractions

The vector of mass fractions of the components

Implements CoolProp::AbstractState.

set_mole_fractions()

void CoolProp::IncompressibleBackend::set_mole_fractions ( const std::vector< CoolPropDbl > &  mole_fractions )

virtual

Set the mole fractions.

Parameters

mole_fractions

The vector of mole fractions of the components

Implements CoolProp::AbstractState.

set_reference_state()

void CoolProp::IncompressibleBackend::set_reference_state	(	double	T0 = 20 + 273.15,
		double	p0 = 101325,
		double	x0 = 0.0,
		double	h0 = 0.0,
		double	s0 = 0.0
	)

Update the reference values and clear the state.

Reference values, no need to calculate them each time

set_volu_fractions()

void CoolProp::IncompressibleBackend::set_volu_fractions ( const std::vector< CoolPropDbl > &  volu_fractions )

virtual

Set the volume fractions.

Parameters

volu_fractions

The vector of volume fractions of the components

Reimplemented from CoolProp::AbstractState.

update()

void CoolProp::IncompressibleBackend::update ( CoolProp::input_pairs  input_pair, double  value1, double  value2  )

virtual

Updating function for incompressible fluid.

In this function we take a pair of thermodynamic states, those defined in the input_pairs enumeration and update all the internal variables that we can.

Parameters

input_pair	Integer key from CoolProp::input_pairs to the two inputs that will be passed to the function
value1	First input value
value2	Second input value

Implements CoolProp::AbstractState.

---

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

• src/Backends/Incompressible/IncompressibleBackend.h
• src/Backends/Incompressible/IncompressibleBackend.cpp