Referring to Problem 12.22, what is the maximum height of the step-up that would not affect the upstream flow condition? What is the minimum width that could exist with a 0.3-m step-up without...

Referring to Problem 12.22, what is the maximum height of the step-up that would not affect the upstream flow condition? What is the minimum width that could exist with a 0.3-m step-up without changing the upstream condition, knowing that the upstream width is 6.0 m?

Problem 12.22

Water flows with a velocity of 3.0 m/s and a depth of 3.0 min a rectangular channel. (a) What is the change in water surface elevation produced by a gradual upward change in bed elevation (hump) of 30 cm? (b) What would be the change in the water surface elevation if there were a gradual drop of 30 cm?