.ThermoSysPro.Properties.WaterSteam.IF97_Utilities.AnalyticDerivatives.ddph_ph_der

Information

derivative function of ddph

Interface

function ddph_ph_der
  extends Modelica.Icons.Function;
  input Units.SI.Pressure p "pressure";
  input Units.SI.SpecificEnthalpy h "specific enthalpy";
  input ThermoSysPro.Properties.WaterSteam.Common.IF97TwoPhaseAnalytic aux "auxiliary record";
  input Real p_der "derivative of pressure";
  input Real h_der "derivative of specific enthalpy";
  output Real ddph_der "Gradient of ddph";
end ddph_ph_der;