Uniform flow

1. A concrete lined trapezoidal channel n=0.015 is to have a side slope of 1:1. The bottom slope is to be 0.0004. Find the bottom width of the channel necessary to carry 10m3/sec of discharge at a normal depth of 2.5m. 2. Determine the discharge through a rectangular channel of width 2m having a bed slope of 1 in 2000. The depth of the flow is 1.5m and the value of Manning’s constant “n” is 0.012. 3. A rectangular channel 3.5m wide is laid on a slope of 0.0005. Calculate the normal depth of flow for a discharge of 5m3.The Manning’s coefficient is 0.02.