Unformatted text preview: channel is 0.40 m wide. The discharge down the channel is measured using a rectangular weir that has a crest length of 0.25 m. The crest of the channel is set a t a height of 0.1m above the bottom of the channel. The head over the weir crest, measured at suitable distance upstream is 0.19 m. the coefficient discharge of the weir is 0.62. Ignoring side contractions: a. calculate the discharge ignoring the velocity of approach (0.0379 m 3 /s) b. calculate the discharge taking into account the velocity of approach (0.0395 m 3 /s) c. calculate the percentage of error in the discharge that results from ignoring the velocity of approach (4.1%) Region 1 Region 2 Region 3 Steep Slope (S) Y S-S f y c (1-F 2 ) dy/dx 1...
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- Three '10
- Gate, 0.3 m, 0.40 m, 0.1M, Weir, 0.5 km, 2.75m