Broad Crested Weirs Calculator

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Posted by Dinesh on

This calculator calculates the water flow rate (q) using width of the weir (b), head 1 on the weir (h1), discharge constant values.

Broad Crested Weirs Calculation

m
m
m
m³/s

Formula:

q = Cd × b × h2 × (2g (h1 - h2) )1/2

Where,
q = Water Flow Rate
Cd = Discharge Constant
b = Width of the Weir
g = Gravity (9.81 m/s²)
h1, h2 = Head 1 and Head 2 on the Weir
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