(b) A rectangular channel 25 m wide has a bed slope of 1:1200 and ends in a free outfall. If the channel carries a flow
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(b) A rectangular channel 25 m wide has a bed slope of 1:1200 and ends in a free outfall. If the channel carries a flow
(b) A rectangular channel 25 m wide has a bed slope of 1:1200 and ends in a free outfall. If the channel carries a flow rate of 20 m/s, and has a Manning's roughness coefficient of 0.014, how far from the outlet is the depth equal to 99% of normal depth. Use four equal depth steps in the calculations? (20 Marks)
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