MaterialLib::PhysicalConstant::CriticalPoint Namespace Reference

Detailed Description

Critical point data of water.

• Source: IAPWS R2-83(1992), "Release on the Values of Temperature, Pressure and Density of Ordinary and Heavy Water Substances at their Respective Critical Points". https://iapws.org/technical-guidance/release/crits

Variables
constexpr double	TemperatureWater = 647.096
	K.
constexpr double	PressureWater = 22.064e6
	Pa.

Variable Documentation

PressureWater

double MaterialLib::PhysicalConstant::CriticalPoint::PressureWater = 22.064e6

constexpr

Pa.

Critical pressure of ordinary water substance H₂O. Stated experimental uncertainty 0.005 MPa. As for the critical temperature, IAPWS-IF97 adopts this value as the upper bound of its region 4 saturation line rather than reproducing it as a fitted quantity, see IAPWS R7-97(2012), "Revised Release on the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam", Sec. 8.1. http://www.iapws.org/relguide/IF97-Rev.pdf

Definition at line 64 of file PhysicalConstant.h.

Referenced by ProcessLib::WellboreCompensateNeumannBoundaryConditionLocalAssembler< ShapeFunction, GlobalDim >::assemble(), ProcessLib::WellboreSimulator::WellboreSimulatorFEM< ShapeFunction, GlobalDim >::assemble(), and MaterialPropertyLib::IAPWSIF97Region4::checkPressureInRange().

TemperatureWater

double MaterialLib::PhysicalConstant::CriticalPoint::TemperatureWater = 647.096

constexpr

K.

Critical temperature of ordinary water substance H₂O. Stated experimental uncertainty 0.1 K. The IAPWS-95 formulation adopts the same value as the fixed reducing parameter of \(\tau = T_c/T\), i.e. it is not a quantity fitted by that formulation, see W. Wagner and A. Pruss, "The IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use", J. Phys. Chem. Ref. Data 31, 387 (2002), https://doi.org/10.1063/1.1461829.

Definition at line 55 of file PhysicalConstant.h.

Referenced by MaterialPropertyLib::driftFluxVelocity().