Consider uniform water flow in a wide brick channel of slope 0.4°. Determine the range of flow depth for which the channel is classified as being steep

7. A long triangular open channel with two different side slopes, these are: 2:1 and 3:1 (H: V). The Manning coefficient is 0.014. The longitudinal bed slope =0.004, this channel is converted to the best economic section by using the same amount of material at depth 1.5m in the old section. The old and new flow discharges in m3/s (respectively) are: 9.9 & 57.5 29.8 & 67.3 20.5 & 14.5 19.9 & 37.3 None

Water at 15°C flows at a depth of 0.25 m with an average velocity of 7 m/s in a rectangular channel. Determine (a) the critical depth, (b) the alternate depth, and (c) the minimum specific energy.

What will be the depth of flow in a trapezoidal concrete-lined channel that has awater discharge of 1000 cfs? The channel has a slope of 1 ft in 500 ft. The bottom width of thechannel is 10 ft. and the side slopes are l vertical to 1 horizontal, n=0.012

6-22. A rectangular channel with 20 ft width, S = 0.006, and n = 0.015, carries & discharge of 200 efs. Compute the normal depth and velocity. 6-23. Using the Manning formula, determine the normal depths in channels having the following sections when Q = 100 cfs, n = 0.015, and S = 0.0020: