A sluice gate partially extends down into the flow within a rectangular channel. The upstream water depth is 10 ft and the downstream depth is 4 ft. The gate is suddenly opened high enough to cause a 45% increase in discharge under it.
i) Determine the initial specific discharge under the gate.
ii) Write out (but don't solve) the continuity and momentum equations that govern the surge travelling downstream. (Note: assume that the surge velocity exceeds the water velocity)
Attachment:- CVL_Question.pdf