Water/Steam properties in region 4 of IAPWS/IF97 (two-phase)
function waterR4_ph import ThermoSysPro; extends Modelica.Icons.Function; input Units.SI.Pressure p "pressure"; input Units.SI.SpecificEnthalpy h "specific enthalpy"; output ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph pro "thermodynamic property collection"; end waterR4_ph;