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?
Inthis 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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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