Question: Water flows through a rectangular and symmetrical, but otherwise unspecified, channel expansion as shown in the figure. Given Q = 2 0 0 m 3

Water flows through a rectangular and symmetrical, but otherwise unspecified, channel expansion as shown in the figure. Given Q=200m3s and a 2.5m -deep flow in the 50m -wide approach channel, determine the degree of expansion if the water surface rises by 0.05m .Calculate the mean depth and velocity in the expansion.

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