A channel has a bottom width of 350 m, depth 9 m and side slopes 1:2....
A channel has a bottom width of 300 m, depth 8 m and side slopes 1:1.5. If the depth is increased to 12 m by dredging, determine the percentage increase in velocity of flow in the channel. For the same increase in cross sectional area, if the channel is widened (instead of deepening), what is the percentage increase in the velocity of flow.
(I) For a trapezoidal channel with a fixed cross-sectional area of 10m2, bottom width b, depth y, and side slopes of 2H:1V, confirm that the most efficient (optimal) cross-section occurs with b / У = 21 V1+ m2-m | , where ,n=2 in this case. To do this, it is easiest to make a Matlab or Excel program with different b/y ratios and 10m2 cross-sectional area, and determine the relative flow rates. Then normalize this by the optimal flow rate...
A trapezoidal channel with bottom width of 10 m and side slopes of 1V:1.5H is carrying a flow of 80 m3/s. The channel bottom slope is 0.002 and n = 0.015. A dam is planned that will raise the flow depth to 10 m. Compute the flow depth by using standard step method in the channel 250, 500, and 750 m upstream of the dam.
A trapezoidal channel with a bottom width of 8ft and side slopes of 1V:1H is designed for a discharge of 160cfs. If the channel has a slope of 0.002, what will be the water depth if the Manning n is 0.017?
Question 6 A concrete-lined trapezoidal channel with uniform flow has a normal depth of 1.5 m. The base width is 4 m and the side slopes are equal at 1 vertical to 2 horizontal. Mannin‘s n-0015. The bed slope 0.001 Compute the mean velocity and discharge. If the above channel were to be designed for flooding, it may have a section like in Figure below 8 m 8 m 4 m When the flow goes over the top of the...
#4 [5 points] A trapezoidal channel of bottom width 25 ft and side slope 1:2.5 carries a discharge of 450 cfs with a normal depth of 3.5 ft. The elevations at the beginning and end of the channel are 685 and 650 ft., respectively. Determine the length of the channel if n = 0.02. #5 [5 points] Water is flowing at a rate of 4.5 m3/s in a trapezoidal channel whose bottom width is 2.4 m and side slopes are...
A concrete-lined channel has a trapezoidal cross-section with a bottom width of 1.8 ft, side-slopes 1.5 (defined as horizontal: vertical), n the water depth is 2.7 ft, determine: (25 points) 2. 0.018, and a bed slope of 0.002 ft/ft. If a. Critica I depth (yd. Note: Because you need a solver to solve this problem (and I do not require a solving calculator for this midterm), all you need to do is set-up an equation that is in terms of...
Determine the critical depth of a trapezoidal channel with a bottom width of 7 feet and side slopes of 2:1 (H:V). Water flows through the channel at 25 ft/s. Please explain how to do the question.
What is the average velocity in a PCC lined trapezoidal channel with a bottom width of 10 m, 1:1 side slopes, a channel slope of 3% when it is flowing at a depth of 2m? The n-value for PCC is 0.013.
A grouted-riprap, trapezoidal channel (n=0.025) with a bottom width of 4 meters and side slopes of m=1 carries a discharge 12.5 m3/s on a 0.001 slope. a) Find depth of delta(L) using the standard step method b) Find delta(L) where y=yn (1.66m) using direct step method