fully developed profile expression
 

Hello,

I want to set a fully developed velocity profile at the inlet of a rectangular duct, so I am creating a new expression to set the equation of Shah & London.

In a part of the equation I have to raise (z/a)^m, where m=2.37. I get an error when I try to set a non-integer value for m. If, for example, I use m=3, everything works fine. Any suggestions about the problem?

Sorry rushed to post!!

Please do not bother to answer