=[a Q/gb], where Q is the(a) Show that the critical depth for rectangular channels is expressed by y.discharge, b is the channel width, and a is the energy coefficient.(b) A half trapezoid flood drainage channel (Fig. 3b) has a flow of 100 m³/s. If the flow depth upstreamof the 0.2 m step-rise is 4 m, what is the depth at an immediately downstream section of the 0.2 m step-rise? Assume there are no losses in the transition. Also compute the flow depth at the a very fardownstream end if the flood drainage channel ends in a free overfall.(c) For a symmetrical compound channel section (Fig. 3c), compute the n., α, and S, based on theassumption that the depth of flow in the section is 5 m; the flood plains and the main channel have the samebottom slope of 0.001; and roughness coefficient for the main channel and the flood floodplains arerespectively 0.021 and 0.039.

Note: In b and c part of the question, Figure is not provided. Please resubmit the question with…

Answered: (a) Show that the critical depth for…

(a) Show that the critical depth for rectangular channels is expressed by y. = [a Q²/gb²], where Q is the discharge, b is the channel width, and a is the energy coefficient.

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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