by jfholm » Wed Oct 14, 2009 10:18 am
Here is a very good explanation. I re-read it to keep my head straight also. Basically Cd is Cd = coefficient of discharge, What an orifice actually flows. The orifice may be 1" in diameter but usually only flows like a .6" hole.
John
It is a wise man that learns from his mistakes, but it is a wiser man that learns from the mistakes of others.