Pipe Flow Calculations Forum

by Harrell Geron, NRCS Civil Engineer This is the most simple and accurate solution for the Darcy Friction Factor with Excel. It works with the popular Colebrook-White equations. After learning this method, you can design your own procedures. Here are four Colebrook-White equations written to work i...

I have found a great solution to this...(better than any professional version I have seen on the web.) Colebrook-White equation is the currently accepted world standard 1 / λ1/2 = -2 Log [ 2.51 / (Re λ1/2)  +  (k / dh) / 3.7 ]   Contact me , Send me a list of the dh, k, and Re values (in excel) and ...