6 24 Water flows at a depth of 2 m in a 3 m wide rectangular channel. At a downstream section the width is 2.3 m, the channel bed is raised 300 mm, and the water surface drops by 125 mm. (a) What is the flow rate? [Ans. 7.116 m/s.] (b) What should be the bed elevation at the contracted section if the water surface is to remain level?
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A: We will apply direct formula of discharge and depth.
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- A trapezoidal channel carrying water with area section = 40 m^2, wetted parameter =30 m, bed slope is 3 m for each 10000 m and C= 145, the discharge in the channel is = ---?The incoming flow rate is 100 m3/s on a rectangular channel with: depth = 3 meters width = 4 meters Then, a hydraulic jump occurred along the way. Determine the depth at the hydraulic jump section.A right-angled triangular channel carries a flow of 16,000 l/s. The Manning’s n = 0.020 and the slope is 2 m/3000 m.(a) Determine the critical depth [m] for this flow.(b) Determine Froude number for the flow when the depth of flow is 0.6 m.(c) Determine the normal depth of flow [m]