The discharge through a wholly drowned orifice is given by (where H1 = Height of water (on the upstream side) above the top of the orifice, H2 = Height of water (on the downstream side) above the bottom of the orifice, and H = Difference between two water levels on either side of the orifice)
Options
A. Q = Cd x bH1 2gh
B. Q = Cd x bH22gh
C. Q = Cd x b ( H2 - H1 ) 2gh
D. Q = Cd x bH2gh
Correct Answer
Q = Cd x b ( H2 - H1 ) 2gh
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