.ThermoSysPro.Properties.WaterSteam.BaseIF97.Basic.f3deltatau

Information

1st derivatives of f wrt delta and tau

Interface

function f3deltatau
  extends Modelica.Icons.Function;
  input Units.SI.Density d "density";
  input Units.SI.Temperature T "temperature (K)";
  output Real delta "dimensionless density";
  output Real tau "dimensionless temperature";
  output Real fdelta "dimensionless dervative of Helmholtz function wrt delta";
  output Real ftau "dimensionless dervative of Helmholtz function wrt tau";
end f3deltatau;