Question

When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as?

Answer 1

When the water level on the downstream side of a weir is above the top surface of weir, it is known as submerged or drowned weir as shown in figure. The total discharge, over such a weir, is found out by splitting up the height of water, above the sill of the weir, into two portions.

Answer 2

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