Link to Darcy & HW Friction Factors

[TigerinFL]

Does anyone have a link that has the Darcy-Weisbach friction factors in a table based on pipe size and type. Also, looking for tables on loss per 1000 lf based on flow/pipe size (Hazen-Williams) Taking the PE on Friday and would like to have this info.

 

[stanier]

Walski ( Analysis of Water Distribution Systems Van Nostrand 1984) provided a relationship of

Chw= 17.25/(f^0.54*(V*D)^0.081)

V = velocity ft/s
D =Diameter ft
f = Darcy Weisbach friction factor
Chw = Hazens Williams factor

 

[LHA]

Try here, some free stuff:

http://www.lmnoeng.com/

Women and cats will do as they please; men and dogs should just learn to live with that - Steve

 

[rbcoulter]

If you are taking the PE exam I would highly recommend that you take "Flow of Fluids through Valves, Fittings, and Pipe - Technical Paper No. 410" by Crane. It has a chart for friciton factor versus pipe size for various pipe types (at complete turbulence).