Determine the actual discharge, theoretical discharge and weir coefficient over a 90° V-notch weir for a...
Determine the actual discharge, theoretical discharge and weir coefficient over a 90° V-notch weir for a head of 180 mm flowing 400 liters in 20 seconds.
Homework Answers
Actual Discharge, Qact = 400/20
Qact =20 L/s or 0.02 m3/s
Theoritical Discharge, Qth = (8/15).((2g)^0.5).(tan(θ/2)).(H^2.5)
Qth = (8/15).((2x9.81)^0.5).(tan(90/2)).(0.18^2.5)
Theoritical Discharge, Qth = 0.0325 m3/s
Coefficient of Discharge, Cd = Qact/Qth = 0.02/0.0325
Coefficient of Discharge, Cd = 0.615
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