m
m
m3/s

Formula

The Bernoulli's equation is as follows
q = 2/3 ×Cd ×b ×(2g)1/2 ×h3/2

Where,
q = Flow Rate
Cd = Discharge Constant
b = Width of the Weir
g = gravity (9.81 m/s2)
h = Head on the Weir