Freeboard of a rectangular concrete conduit 1

[vitorgazola]

Hello,

I am designing the freeboard of a free pipe flow in a rectangular concrete conduit. Could somebody advise me of a text book or formula that best suit the mention design?

Thanks

 

[waterpipe]

Simply do a search in Google book and there you are. There are many good fluid mechanics books out there.

 

[BigInch]

Substituting the radius of a circular pipe by the hydraulic radius of a noncircular cross section is one way to start.

 

[cvg]

vitorgazola, suggest these types of questions are better on the Storm/Flood engineering forum. A useful formula for this problem would be Manning's equation. A good useful book might be
Open Channel Hydraulics by French
Handbook of Hydraulics by Brater and King
Open Channel Hydraulics by Ven Te Chow

EM 1110-2-1601, Hydraulic Design of Flood Control Channels

http://140.194.76.129/publications/eng-manuals/em1110-2-1601/toc.htm