Chapt10

Proposed barrier 2 ft 3 ft y 2 ft p1021 p1022 a

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Unformatted text preview: e surfaces, estimate the required elevation drop in m/km. For the aqueduct of Prob. 10.22, if the slope is 0.0004 and the discharge is 40 m3/s, use the Moody-chart formulation (10.15a) to estimate the normal depth. A riveted-steel channel slopes at 1:500 and has a V shape with an included angle of 80°. Find the normal depth if the flow rate is 900 m3/h. The equilateral-triangle channel in Fig. P10.25 has constant slope S0 and constant Manning factor n. Find Qmax and Vmax. Then, by analogy with Fig. 10.6b, plot the ratios Q/Qmax and V/Vmax as a function of y/a for the complete range 0 y/a 0.866. a a y 30° 30° 2m P10.25 P10.17 EES P10.19 Modify Prob. 10.17 as follows. Determine the normal depth for which the flow rate will be 8 m3/s. Modify Prob. 10.17 as follows. Let the surface be clean earth, which erodes if V exceeds 1.5 m/s. What is the maximum depth to avoid erosion? | v v P10.18 | e-Text Main Menu | P10.26 EES a Water flows in a 6-m-wide rectangular channel lined with rocks whose dominant size is 20 cm. The channel slope is 0.003. A...
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