Question

1. A semi-circular channel 3m in diameter has a maximum discharge capacity 8 m3/sec when running full. Its capacity is required to be augmented to 10.8m3/s by raising its bank vertically. Use Mannings . (a) Find the minimum height to which the banks should be raised. (b) Compute the slope of the new channel bed if n = 0.012. (c) Compute the average depth of water in the channel

Answer 1