Question: Illustrate Prob. 10.104 with a numerical example. Let the channel be rectangular with a width b1 = 10 m for 0 < x < 100

Illustrate Prob. 10.104 with a numerical example. Let the channel be rectangular with a width b1 = 10 m for 0 < x < 100 m, expanding to b2 = 15 m for 100 < x < 250 m. The flow rate is 27 m3/s, and n = 0.012. Compute the water depth at x = 250 m for initial depth y(0) equal to
(a) 75 cm and
(b) 5 cm. Compare your results with the discussion in Prob. 10.104

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