Question: A rectangular channel is 3 . 5 m wide carries a dircharge 1 5 m 2 s at a depth of 2 m . It

A rectangular channel is

3.5 m

wide carries a dircharge

15 \frac{m^{2}}{s}

at a depth of

2 m .

It is proposed to reduce the width of channnel in a hydrauclic. Stucture assuming the transition to be horizontal and the flow to be frictionless, determine the water surface elevation it downstream and minimium width of the constriction which does not cost any shocking.

A rectangular channel is 3 . 5 m wide carries a

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