Derive a general expression for the wetted perimeter P of a trapezoidal channel in terms of cross sectional A, depth y and angle of side slope p. Prove that Rh = y/2 for the section to have the best hydraulic efficiency.

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter14: Fluid Mechanics
Section: Chapter Questions
Problem 89P: A container of water has a cross-sectional area of A=0.1m2 . A piston sits top of the water (see be...
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Derive a general expression for the wetted perimeter P of a
trapezoidal channel in terms of cross sectional A, depth y and
angle of side slope o. Prove that Rh = y/2 for the section to
have the best hydraulic efficiency.
Transcribed Image Text:Derive a general expression for the wetted perimeter P of a trapezoidal channel in terms of cross sectional A, depth y and angle of side slope o. Prove that Rh = y/2 for the section to have the best hydraulic efficiency.
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