function fRe2_Turbulent_Local_Developed_SwameeJain input SI.ReynoldsNumber Re "Reynolds Number"; input SI.Length dimension "Hydraulic diameter"; input SI.Length roughness "Average height of surface asperities"; output Units.NonDim fRe2 "Friction factor*Re^2"; end fRe2_Turbulent_Local_Developed_SwameeJain;