A flow of 32 m2/sec occurs in an earth-lined trapezoidal channel having base width 3.0m, side...
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.
Q1. For a uniform flow, a trapezoidal channel has a base width b = 8 m and side slopes 11:1V. The channel bottom slope is so = 0.0002 and the Manning roughness coefficient n = 0.016. Compute a) The depth of uniform flow if Q = 14.3 m3/s b) The state of flow. yo У. b= 8 m
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...
A concrete-lined (smooth) trapezoidal channel with a bottom width of 10 ft and side slope 2 horizontal to 1 vertical has a slope 0,002 and is designed for a discharge of 160 cts. Determine the water depth in the channel,
(c) A trapezoidal channel, as shown below, has a base width b = 6 m and side slopes 1H:1V. The channel bottom slope is S=0.0002 and the Manning roughness coefficient is n=0.014. Compute: a) the depth of uniform flow if Q = 12.1 m3/s b) the state of the flow. Y Y. b = 6 m Fig. Q2c
clear handwriting please. write all steps please. Problem One: A trapezoidal channel of base width 20 ft and side slopes of 1.5H:1V is laid on a slope of 0.001, at a discharge of 1000 ft/s. Compute the flow and draw the surface profile upstream from the overfall to the region where the depth is 10 percent lower than uniform. Assume a manning n- 0.025 and that critical flow occurs at the overfall. Classify the profile.
('15 Marks) Question 4 An earth drainage ditch may be approximated a trapezoidal channel has a base width b = 6 m and side slopes 1H:1V. The channel bottom slope is So = 0.0002 and the Manning roughness coefficient is n = 0.014. Compute a) the depth of uniform flow if Q = 6.01 m/s b) the state of flow (25 Marks) Chapter 8 Question 5 brick channel designed to carry 5.5
(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...