The width of the weir with end contraction is
The discharge of broad crested weir is maximum if the head of water on the downstream side of weir as compared to the head on the upstream side of the weir is
If 2L > H, the weir is called broad-crested weir.
If 2 L < H, the weir is called narrow -crested weir by Bernoulli's equation to the still water surface on the upstream side and running water at the end of weir
Maximum discharge over broad crested weir is
The cipoletti weir functions as if it were a following notch without end contractions
Cipolieti weir is a trapezoidal weir which has side slopes of 1 horizontal to 4 vertical as shown.
By giving slope to the sides, an increase in discharge through the triangular portions ABC and DEFof the weir would be rectangular.
Cipolleti notch is designed as trapezoid with sides sloping at 1 horizontal and
What is the discharge over a cipolleti weir of length 2 m when the head over the weir is 1 m? (Take Cd = 0.62)
Match List - I ( Discharge of ) with List-11 (Proportional to)
The approximate discharge over a 4 m long rectangular suppresed weir with head over the crest as 0.36 m is
The discharge over a suppresed sharp crested rectangular weir is given by
Here H1 is the difference in elevation-between
For a suppressed rectangular weir an arrangement for aeration of nappe is necessary to