Computing Backwater at Open Channel Constrictions

by J. W. Hugh Barrett, Grad. Res. Asst.; Dept. of Agr. Engrg., Coll. of Engrg., Colorado State Univ., Fort Collins, CO,
Gaylord V. Skogerboe, (M.ASCE), Assoc. Prof.; Dept. of Agr. Engrg., Coll. of Engrg., Colorado State Univ., Fort Collins, CO,


Serial Information: Journal of the Hydraulics Division, 1973, Vol. 99, Issue 7, Pg. 1043-1056


Document Type: Journal Paper

Abstract:

A previously developed subcritical (submerged) flow analysis for open channel constrictions has been modified to provide an improved technique for computing the backwater resulting from constrictions. Application of the method to results from model studies has shown that it provides a more accurate prediction of the effects of a contraction on open channel flow than the methods currently in use. Of particular advantage is the applicability of the proposed technique to any flow condition or regime and its independence of channel slope.



Subject Headings: Open channel flow | Submerged flow | Open channels | Backwater | Model accuracy | Subcritical flow | Hydraulic models | Hydraulic contraction

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