WATER RESOURCES ENGINEERING
3rd Edition
ISBN: 9781119490579
Author: Mays
Publisher: WILEY
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Chapter 4, Problem 4.5.5P
To determine
The rate of flow and the elevation of the third reservoir.
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Determine flow rates in the branching pipe system depicted in Figure P4.3.2 given the followingwater surface (WS) elevation and pipe data (lengths and diameters):
WS1 = 5,200 ft L1 = 6,000 ft D1 = 4 ftWS2 = 5,150 ft L2 = 2,000 ft D2 = 3 ftWS3 = 5,100 ft L3 = 8,000 ft D3 = 5 ft
All of the pipes are lined ductile iron (DIP, ), and the temperature of the water is 68℉
. Also determine the elevation of the junction (J) if the pressure head (P/?) at the junction mea-sured by a piezometer (height from P to J) is . 30 ft
A pipe of length L = 500 m, diameter D = 300 mm and absolute roughness k = 0.02 mm transports a flow Q = 456 m3/h. Using the Darcy-Weisbach formula determine the hydraulic gradient and headloss through the pipe. The water temperature may be assumed to be 20° C.
A circular section channel 3 m in diameter has a depth of 1.0 m and is laid to a gradient of 1:1000 and n = 0.012.
A.Compute the rate of flow in cu.m./s (2 decimal places)
B. Compute the hydraulic radius of the channel (3 decimal places).
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