EBK WATER RESOURCES ENGINEERING
3rd Edition
ISBN: 9781119493167
Author: Mays
Publisher: VST
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Chapter 5, Problem 5.3.1P
To determine
The distance from the vena contracta to a point b downstream
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if the median size of bed material of a natural
channel is 1.2 mm, then the Manning's n
coefficient for the channel is about
0.027
.a
0.041 .b
0.012
.C
0.035 .d
Water flows in a rectangular open channel that is 10m wide, at a depth of 2.5m. The Manning roughness coefficient of the sides of the channel is 0.015 and the bottom of the channel is 0.010 . Calculate the equivalent roughness coefficient by using Horton –Einstein approach.
Q5: The bed slope of a regime canal is 1/5500. Determine the canal section and discharge by using Lacey's theory. The average particle size is 0.35 mm.
Chapter 5 Solutions
EBK WATER RESOURCES ENGINEERING
Ch. 5 - Prob. 5.1.1PCh. 5 - Prob. 5.1.2PCh. 5 - Prob. 5.1.3PCh. 5 - Prob. 5.1.4PCh. 5 - Prob. 5.1.5PCh. 5 - Prob. 5.1.6PCh. 5 - Prob. 5.1.7PCh. 5 - Prob. 5.1.8PCh. 5 - Prob. 5.1.9PCh. 5 - Prob. 5.2.1P
Ch. 5 - Prob. 5.2.2PCh. 5 - Prob. 5.3.1PCh. 5 - Prob. 5.3.2PCh. 5 - Prob. 5.3.3PCh. 5 - Prob. 5.3.4PCh. 5 - Prob. 5.3.5PCh. 5 - Prob. 5.3.6PCh. 5 - Prob. 5.4.1PCh. 5 - Prob. 5.4.2PCh. 5 - Prob. 5.5.1PCh. 5 - Prob. 5.5.2PCh. 5 - Prob. 5.5.3PCh. 5 - Prob. 5.5.4PCh. 5 - Prob. 5.5.5PCh. 5 - Prob. 5.5.6P
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- For a triangular channel with the horizontal dimension of the side slope is 3 (i.e Z-3), a normal depth 2.74 in ft, and a channel bed slope of 0.001. The channel is lined with concrete with a roughness coefficient 0.013. Calculate the velocity in fps. (1.486 (S^0.5)*(((3*(yn^2)/(2*yn´(10^0.5)))^(2/3)))/n 4.3arrow_forwardX1arrow_forwardQ3/ Find bed width (B) and depth of flow (y) of a rectangular open channel, if, Flow rate in the channel Q = 250 (m³/s). Longitudinal slope of bed level of the channel S, = 0.0001, Manning's coefficient n = B = 20y. (1/3) 0.025 (s/m/3). %3Darrow_forward
- Please give me solution fastarrow_forwardExample(): Given below a part of project. Calculate the water level at the head of the distributary canal D1 if the head loss in each water course is 30 cm. and the minimum allowable slope is 20 cm/Km. The length of each water course is 1.350 Km and the head loss in the distributary canal D1 is 25 cm. 15.5 15.0 16.0 14.0 19.0 17.0 14.5 13.5 16.5 20.0 R1 R2 R3 Branch canal R4 0.00 K0+100 KO+600 D1 K1+100 K1+600arrow_forwardPlease solve quickly For an irrigation project, you need to design an irrigation channel to convey water with a given flowrate. The water depth in the channel is 1.5 m. The channel has a trapezoidal cross-section and its slope is J0=0.001 and its roughness coefficient is n =0.015. Determine the base width of the channel in m.arrow_forward
- Water flows in a rectangular, finished concrete channel at a rate of 2 m3/s . The bottom slope is 0.001. Determine the channel width if the water depth is to be equal to its width.arrow_forwardFor all pipes, the roughness coefficient n = 0.011. Find in cms:a.)Discharge at pipe 1/reservoir A.b.)Discharge at pipe 2/reservoir B.c.)Discharge at pipe 3/reservoir C. PIPELINE LENGTH (m) DIAMETER (mm) 1 1241 344 2 912 211 3 1524 122arrow_forwardQuestion: The project flow rate determined according to the stream yield will be transmitted through a rectangular channel in the shape of Q = 10 m3 /s. The Manning coefficient was determined as n = 0.04 according to the covering material of the channel and the longitudinal base slope of the channel was determined as 10 = 0.0015 according to the topographic characteristics of the land. Determine the channel bottom width (B) and flow depth (h) with the concept of the most appropriate cross section. h Вarrow_forward
- 1 2 3 4 6 6 6 6 7 6 9 Dimensions in the figure are in meters. With the given dimensions and Manning coefficients, determine the channel's flow rate and the channel's effective Manning coefficient. Water is flowing on a channel whose bottom slope is 0.002. The cross-section of the channel is shown in the figure. The channel has an unfinished cement surface (n = 0.014) at subsections 1 and 2 and a light brush (n = 0.05) at subsection 3. 9arrow_forwardGive me all right solutions with clear calculations. What should be the slope of a planed-timber flume, rectangular in cross-section, to carry 0.80 m³/ s. If the width is 1.2 m and the depth of flow is 0.45 m. Is the flow sub-critical or super-critical? Determine the critical depth and critical slope for the given discharge and width. Use n = 0.012arrow_forwardExplain every step of the solution, especially why they used 60° rather than 30°. And how did they get R?arrow_forward
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