Define dimension factor φ for Thick Orifice. Orifice length should be provided and this length should not be greater than 5Do.

Thick Orifice:


function ThickOrifice
  extends Modelica.Icons.Function;
  input SI.ReynoldsNumber N_Re "Reynolds number";
  input SI.Height p_eps "Pipe roughness height";
  input SI.Diameter D_i, D_o "Pipe diameters";
  input SI.Length L;
  output Real phi;
end ThickOrifice;

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