An open channel is to be constructed of trapezoidal section and with side slopes 1 vertical to Find the proportions (i.e., relation between bottom width and depth of flow) for minimum excavation (i.e., best hydraulic section). If the flow is to be 2.7 cumec, calculate the bottom width and the depth of flow assuming C in Chezy’s formula as 44.5 and the bed slope is 1 in 4000.
(solved), A most efficient trapezoidal section is required to give a maximum discharge of 21.5 m3/s of water. The slope of the channel bottom is 1 in 2500. Taking C = 70 m1/2/s in Chezy’s equation, determine the dimensions of the channel. Also determine the value of Manning’s n, taking the value of velocity of flow as obtained for the channel by Chezy’s equation
Question 5, Problem on trapezoidal channel section
(Solved), An irrigation channel with a trapezoidal section, having side slopes 3 horizontal to 2 vertical
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