WATER RESOURCES ENGINEERING
3rd Edition
ISBN: 9781119490579
Author: Mays
Publisher: WILEY
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Chapter 5, Problem 5.1.8P
To determine
Design of the trapezoidal concrete channel.
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Q2) For the composite channel shown in Fig. The bed slope is (0.0003).
Calculate:
1. The discharge of the channel using Horton and Pavlovskii Methods
2. The required freeboard
n-0.028
n=0.035
n-0.025
y = 2,7m
I.Im
1.5
6m
5m
Two pipes are connected in series. If the roughness coefficient n2 = 2n1 and the diameter D1 = 600 mm, determine the diameter D2 if the slope of their energy grade lines should be same.
Hydraulic structure
Two concrete pipes (n = 0.01) must carry the flow from an open channel half square section 2m wide and 1m deep (n = 0.01168) The slope of both structures is (0.0009). Determine the diameter of the pipes.
Chapter 5 Solutions
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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- gives a cross section of a concrete dam. The subsoil is anisotropic and has permeabilities kh = 0.8 x 10 in./sec and kv= 2.0 x 10 in./sec. Find the rate of flow beneath the dam per foot length of the dam. And the factor of safety against piping if void ratio of soil= 0.68 and Gs= 2.7. 32 ft 3 ft ky k₁ 55 ft Concrete dam TAVAY 557 KN Kin + TAVAS imisel. 275-21 AWAWarrow_forwardneed the answer in 1 hour. answer asap pleasearrow_forwardConsider the simple pipe network below. Pipe AB and CF are both 500m long withdiameters of 0.8m and friction factors of 0.015. Branch 1 is 200m long, 0.5m in diameter with a frictionfactor of 0.02. Branch 2 is 300m long, 0.6m in diameter with a friction factor of 0.012. The designdischarge through pipe AB is 3m 3 /s. Determine the following: a) the equivalent pipe length, Leq, of asingle equivalent pipe with a diameter of 1m and friction factor of 0.02, that represents the entire pipenetwork from A to F, b) determine the total head loss from A to F. Ignore minor losses. (Hint: need touse method of equivalent pipes for both series and parallel)arrow_forward
- A compound pipe consists of three pipes connected in series. The first pipe has a length of 115.3m, the diameter of 280mm, and Darcy-Weisbach friction factor f=0.0233. The second pipe has a length of 234.15m, the diameter of 230mm, and Manning's Roughness Coefficient n=0.0133. The third pipe has a length of 147.95m, the diameter of 250mm and a Hazen William coefficient C=110. If the pipe system carries a flow rate of 740 L/s: Determine the headloss in the first pipe in meters. Determine the headloss in the second pipe in meters. Determine the headloss in the third pipe in meters.arrow_forwardPlease solve showing sketch pleasearrow_forwardSsooolllvarrow_forward
- Oil flows through the constant-diameter pipe, as shown in fig.(1) such that at A the pressure is 50 kPa, and the velocity is 2 m/s. Determine the pressure and velocity at B. Draw the energy and hydraulic grade lines for AB using a datum at B. Take p. 900 kg/m³. 0.75 m Fig.(1) 2 m/sarrow_forwardTwo sections, A and B, are 0.5 km apart along a 0.05 m diameter rough concrete pipe. A is 115 m higherthan B, the water temperature is 4 °C, and the pressure heads measured at A and B are 21.7 m and 76.1 m,respectively. Assume minor losses are negligible. Determine the flow rate through the pipearrow_forwardIf the water surface elevation in reservoir B is 110 m, what must be the water surface elevation in reservoir A if a flow of 0.03 m3s is to occur in the cast-iron pipe? Use f = 0.021 for all pipes. Draw the HGL and the EGL, including changes in slope due to head loss. Neglect minor losses.arrow_forward
- the hydraulic radius when the pipe flowing half full is D .a D/4 .b none of these .C D/8 .darrow_forwardA 5 KN 5 KN 5 KN 5 KN 5 KN 1m 1m 1m 1m 1m 20 kN-m DRAW V&M DIAGRAM. SOLVE FOR V-MAX NEGATIVE, V-MAX POSITIVE, V MAX, M-MAX NEGATIVE, M-MAX POSITIVE, M-MAX. SHOW A FULL SOLUTIONarrow_forwardInclude a free body diagram. A 12′′ pipe is being tested to evaluate the lost head. When the flow of water is 6.31 cfs, the pressure at point A in the pipe is 40 psi. A differential gage is attached to the pipe at A and at a point Bdownstream that is 10 ft higher than A. The deflection of mercury in the gage is 3.33 ft, indicating a greater pressure at A. What is the lost head A to 5?arrow_forward
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