Water flows with a critical depth in a circular section of radius 0.6 m under a velocity of 3.0 m/s. What is the depth of flow? A channel with a compound cross-section consists of a semicircular...

Water flows with a critical depth in a circular section of radius 0.6 m under a velocity of 3.0 m/s. What is the depth of flow?

A channel with a compound cross-section consists of a semicircular bottom and two vertical walls. The distance between the walls is 1.2 m. If the discharge is 0.8
/s, calculate the alternate depths corresponding to a specific energy of 1.0 m. Find the corresponding slopes required to develop a uniform flow. Take n = 0.02.