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loss coefficient

Posted by bahareh on February 9, 2011 at 12:58am

hiwhat is the suitable loss coefficient for polyethylene pipe 3-5 meter below ground surface?thanks

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Mehdi February 13, 2011 at 2:32am

dear bahareh

nice to see you here

Please inform what do you mean about loss coefficient? Your problem is to determine the manning roughness, or minor losses i.e. entrance loss coefficient?

In this issue, you can see FHWA publications :

i.e. FHPublication No. FHWA-NHI-10-009
September 2009
Hydraulic Engineering Circular No. 22, Third Edition
URBAN DRAINAGE DESIGN MANUAL

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