ntracted rectangular weir (length 15 ft) discharges water under a head of 147/16 in. Determine: a) the discharge by the Francis Correction applied to the Rehbock

Find the discharge over a 75 degree V-notch weir if H = 6 inches

A contracted from the two ends sharp-crested weir is installed in a channel and has a crest heigh of 7.2 m and a crest effective length of 4 m. The discharge coefficient (Cd) is 1.81. At design flow, a 1.1 m static head develops upstream of the weir. Determine the crest height of a non- contracted-90°-V-notch (replacement) weir with Cd =2 that would discharge the same design flow rate without raising the upstream flow depth in the channel. Y

Determine the required length of a contracted weir similar to that shown in Fig. 14.17(b) to pass 15 ft³/s of water. The height of the crest is to be 3 ft from the channel bottom, and the maximum head above the crest is to be 18 in.