Direct Solution to Problems of Open Channel Transitions

by Nandana Vittal, Reader in Civ. Engrg.; Univ. of Roorkee, Roorkee, India,

Serial Information: Journal of the Hydraulics Division, 1978, Vol. 104, Issue 11, Pg. 1485-1494

Document Type: Journal Paper


Existing methods of solving problems of open channel transitions involve trials-and-error solution of higher degree equations and no direct solutions are available in technical literature. This paper presents unique dimensionless discharge-depth relationships for exponential, trapezoidal, and circular channels that facilitate direct solutions to various problems on horizontal, vertical, and combined horizontal-vertical transitions even with change in cross-sectional shape. Use of the proposed relationships is demonstrated with practical examples of culvert and aqueduct transitions.

Subject Headings: Open channels | Bibliographies | Water discharge | Trapezoidal channels | Cross sections | Culverts | Aqueducts

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