Question

A rectangular channel (n = 0.016 and b = 2.5m) that runs on a bed slope of 0.004 has a flow depth of 1.2m.

1 Calculate flow rate for this channel

2. Decide whether the flow of this channel is supercritical or sub-critical

3. Compute critical depth and minimum specific energy for this channel

4. Compute critical bed slope and compare bed slope against the critical slope. Give a name to this slope type

5. Indicate given flow depth, critical depth and their specific energy values in a depth (d) versus specific energy (Es) curve

Answer 1