isentropic exponent as function of pressure and specific enthalpy
function isentropicExponent_props_ph extends Modelica.Icons.Function; input Units.SI.Pressure p "pressure"; input Units.SI.SpecificEnthalpy h "specific enthalpy"; input ThermoSysPro.Properties.WaterSteam.Common.IF97BaseTwoPhase aux "auxiliary record"; output Real gamma "isentropic exponent"; end isentropicExponent_props_ph;