A rectangular concrete channel (n = 0.014) has a bottom width of 5.05 m and a longitudinal slope of 0.002. Compute the discharge rate and velocity for a water depth of 2.34 m. Compute normal depth, critical depth, and critical slope for a discharge of 6.67 m³/s.

A grass-lined trapezoidal channel is to be designed to carry a flow of 260 cfs. Determine a suitable Manning's first. The slope of the channel is 1.5 fU/2000 ft. The side slopes (same both sides), z = (1 vertical : 2 horizontal). Use a bly ratio of 1.25 and a maximum channe width b = 12 ft. Determine the design depth of flow for the channel [fl (b) Determine the other design parameters including the freeboard. (C) Is the flow in the channel under sub-critical or super-critical flow conditions? Why? (D) Sketch the protle cross-section of the channel with a necessarv dimensions

13. Compute the critical depth for a rectangular canal having a critical velocity of 4 m/s.

Water Resources Engineering: Open Channel Flow A 3.7 meter wide rectangular channel with with a bed slope of 0.00019 and a depth of flow of 2.2 meters. Manning's roughness coefficient is 0.019. Find: a) Can Manning's equation be applied to this system (i.e. Is the flow fully turbulent)? b) Regardless to the answer to part a, determine the steady uniform discharge in the channel (i.e. the "normal depth")

The bed width of a trapezoidal channel is 5.0 m, 5,= 0.0004, the side slope is m = 2 horizontal: 1 vertical, and the n value is 0.02: y = 3.0 m is the normal depth of flow. Calculate and plot the resulting gradually varied flow using the direct step method, when the channel flows into a pool at the downstream end and the pool elevation is 1.25 m higher than the channel bed elevation at the downstream end. Estimate the length of the gradually varied flow that the pool elevation produces.

Determine the discharge through a right angled triangular section for a normal depth of 3.7 ft; n=0.013, and S = 0.13%. Answer: Choose...

an emergency spillway for a detention basin is constructed as a trapezoidal channel with bottom width of 3 m and side slopes of 2 horizontal to 1 vertical lines with grass (n=0.040). The elevation of the crest of the emergency spillway is 150 m. The slope of the channel is 0.0080 m/m. Compute a chart showing the relationship between reservoir elevation and discharge into the channel

A rectangular river channel 4.6 m wide carries water at a depth of 0.6 m. The slope of the channel is 1 in 400. As the channel has poor alignment and the bed is covered with stones about 75 mm to 150 mm in size, n is estimated to be between 0.04 and 0.08. Estimate the minimum and maximum discharge. What is the percentage difference in flow discharge?

Given The channel shown in the figure has a surface of float-finished concrete and is laid on a slope that falls 0.27 m per 100 m of length. Required Calculate the normal discharge for a depth of 1.5 m in m3/s, to the nearest 100th. 2 - 3.0 m

The base of the artificial channel has a bottom width of 3m and sides with a slope of 1 vertical to 2 horizontal. The depth of water being predicted/estimated is 1.2m when the discharge is 3.51m3/s. Using Manning's equation with n = 0.022 a. Calculate the slope of the channel bed.b. Calculate the discharge in m3/s when the depth of flow is 1.3m.