Question

Water discharges from a pond through a rectangular opening that is 1.2m wide and 0.5 m high. Use Cd=0.62.

a) Find the discharge through the opening if the water surface in the pond is 0.3m above the opening invert (bottom of the pipe).

b) Find the discharge through the opening if the water surface in the pond is 1m above the opening invert.

Answer #1

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What is the area of the 1 m radius pipe?
m2
Tries 0/2
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m2
Tries 0/2
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m/s
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Water flows through a pipe that gradually descends from a height
of 6.78 m to the ground. Near the top, the cross-sectional area is
0.4 m2, and the pipe gradually widens so that its area near the
ground is 0.8 m2. Water leaves the pipe at a speed of 16.8 m/s.
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yield coefficient = 0.8 mg VSS/mg BOD5, endogenous decay
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