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1. The channel is a rectangular shape with the wide 0.5 m Specific discharge Q/w=0.01 m2s-1....

1.

The channel is a rectangular shape with the wide 0.5 m

Specific discharge Q/w=0.01 m2s-1.

upstream is 2.0 cm step in

the channel bottom flow depth is 6 cm

Question: is the flow subcritical or supercritical? Find the elevation of the free surface of the flow and velocity downstream of the step ( within 1 mm).

Hint: using an iterative approach.

2. A city had big precipitation which dropped 80 mm of rainfall within 6 hours period. What is the return period of it?

Please show the details and the calculation

Thanks

Engineering   Civil-Engineering   
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