Arectangular weir is in a rectangular channel 2.9 m wide. the length of the weir is 1.9 m and is centered in the channel. if the water level is 0.2 m above the surface of the weir, what is the discharge in the channel (m3/sec)

discharge = 0.310976 m³/s

Explanation:

given data

rectangular channel  wide = 2.9 m

length of weir L = 1.9 m

water level H = 0.2 m

solution

we get here discharge that is express as

discharge =    ............................1

we consider here Coefficient of discharge Cd = 0.62

put here value we get

discharge =

discharge = 0.310976 m³/s

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