b) Design a trapezoidal channel. for. minimum cross-section area with side slope of 2:1 (H:V), carrying a discharge of 9000 Ips with velocity of 0.75 m/s. Take Manning's n=0.025. For conveying the same discharge, if a rectangular channel 1.5 m deep and 5· m wide is provided, what would be the saving in power per km length of channel?

b) Design a trapezoidal channel. for. minimum cross-section area with side slope of 2:1 (H:V), carrying a discharge of 9000 Ips with velocity of 0.75 m/s. Take Manning's n=0.025. For conveying the same discharge, if a rectangular channel 1.5 m deep and 5· m wide is provided, what would be the saving in power per km length of channel?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question- A rectangular channel of 3 m width is carrying a discharge of 6 m³/s considering that acceleration due to gravity is 10 m/s², find the velocity of flow in m/s corresponding to the critical depth at which specific energy is minimum.
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A rectangular open channel of 6 m width is carrying a discharge of 20 m³/s. Consider the acceleration due to gravity as 9.81 m/s² and assume water as incompressible and inviscid. The depth of flow in the channel at which the specific energy of the flowing water is minimum for the given discharge will then be