.ThermoSysPro.Properties.WaterSteam.BaseIF97.Regions.rhovl_p_der

Interface

function rhovl_p_der
  extends Modelica.Icons.Function;
  input Units.SI.Pressure p "saturation pressure";
  input ThermoSysPro.Properties.WaterSteam.Common.IF97PhaseBoundaryProperties bpro "property record";
  input Real p_der "derivative of pressure";
  output Real d_der "time derivative of density along the phase boundary";
end rhovl_p_der;