WATER RESOURCES ENGINEERING
3rd Edition
ISBN: 9781119490579
Author: Mays
Publisher: WILEY
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Question
Chapter 4, Problem 4.5.1P
To determine
The discharge and the velocity in each pipe.
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Pipe 1 and Pipe 2 converges together flowing into Pipe 3.
Pipe
Discharge (LPS)
Diameter (mm)
200
100
100
150
If Pipe 3 is designed for a maximum velocity of 3 m/s. what should be the
nominal diameter in millimeters?
The answer has a margin of 1mm from exact ansSwer.
a. Determine the velocity of flow in the pipe in fps.
b. Determine the discharge Q in ft^3/s.
c. How many feet above the center of the pipe will water stand in piezometer tube 3?
d. How many feet above the center of the pipe will water stand in piezometer tube 4?
2. The diameter of a 3 meter pipe decreases from 450 mm to 150 mm. If the velocity is to decrease uniformly in a linear manner,
draw the diameter profile at each 500 mm length interval along the pipe. Discharge is 150 liters per second.
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- 2. The diameter of a 3 meter pipe decreases from 450 mm to 150 mm. If the velocity is to decrease uniformly in a linear manner, draw the diameter profile at each 500 mm length interval along the pipe. Discharge is 150 liters per second. need complete solution with illustrationarrow_forwardGiven:Q = 28 lit/sKc = 0.40Kb = 0.5Ke = 0.40Pipe diam = 10 cmFriction factor = 0.037 1.) From the given data of Figure 1: a) Calculate the value of H. b) If a straight pipe is used from A to B, determine the new value of the discharge in lit/sec.arrow_forwardA small orifice 0.0003 m³ in area is in the vertical side of a rectangular tank. The horizontal sectional area of the tank is 0.40 m². At a given instant the head on the orifice is 1.2 m and 312 sec later it is 0.6 m. Compute the value of the coefficient of discharge C. (5 pts.) Using a coefficient of discharge of 0.60, how long will it take to lower the water surface from 1.2 m to 0.80 m. (5 pts.) Using C=0.60, what will be the heigh of water from 1.2 m after a lapse of 240 sec. (5 pts.)arrow_forward
- A pipe has a length of 170 m., and a diameter of 0.42 m. The coefficient of rougness is C = 105, and the headloss is 15 m. Determine the discharge (L/s) inside the pipe. (Answer 801.181)arrow_forwardProblem 5.2 A 30 cm diameter pipe, conveying water, branches into two pipes of diameters 20 cm and 15 cm respectively. If the average velocity in the 30 cm diameter pipe is 2.5 m/s, find the discharge in this pipe. Also determine the velocity in 15 cm pipe if the average velocity in 20 cm diameter pipe is 2 m/s. Solution. Given : V₁ = 2.5m/sec D₁ = 30cm 1 Fig. 5.3 V₂ = 2m/sec D₂= 20cm D₁ = 15cmarrow_forwardA pipe, diameter 15 cm, leaves a straight pipe with a diameter of 10 cm at point A, and later rejoins it at a downstream point B. The distance AB on the straight 10 cm pipe is 700 m. How long will the 15 cm pipe have to be in order that the flow in the two parallel pipes may be equal? Use f=0.020, and neglect minor losses. 4892 m. 5315 m. 6072 m. 4367 m.arrow_forward
- If the total flow of 4.0m3/? takes place in the three pipes. Determine the distribution offlow. The pipe lengths, diameters and frictions factors are shown below.arrow_forwardA 0.5 m djameter and 100 m' long pipeline carrying 0.5 m/sec discharge is fitted with a valve at d/s end. Calculate the rise of pressure caused within the pipe due to the valve closure in (6) 1 second and and (ii) instantaneously. Take the sonic velocity as 1430 m/s.arrow_forwardA 6769 mm diameter new cast iron pipe 1444 m long and has a head loss of 2.829 m. Find the discharge capacity in m3/s using Mannings formula with n = 0.163 Round your answer to 3 decimal places.arrow_forward
- For the pipe network shown below, Problem 4(- f=0.022 for all pipes. Determine the discharge in line be after two corrections (after AQ,' and AQ,' are applied, if applicable). The initial assumed flow rates are provided. Diameters of horizontal pipes in mm are 600 and 500 for others. 400 L/s a b 1000 m 800 m 150 L/s 250 L/s AQ1 150 L/s AQ2 600 m 400 L/sarrow_forwarda. Determine the velocity of flow in the pipe in m/s. b. Determine the discharge Q in m^3/s. c. How many meters above the center of the pipe will water stand in piezometer tube 3? d.arrow_forwardQ2-595: Water flows from a reservoir through a series of three pipes. From upstream, first pipe of 100 m length and 100 mm diameter has two elbows. It is joined to a second pipe of length 200 m and a diameter of 200 mm. On the downstream side, the pipe length is 100 m and a diameter of 100 mm. If the exit is 20 m below the free surface level in the reservoir, calculate the discharge. Find the percentage error in discharge if minor losses are neglected. Assume f = 0.02 for all pipes. SASO.O 0.0 H 20m B Pipe 1 ban b Pipe 2 Pipe 3. d,- 100 mm di- lie100m C E F d3 100mm l3-100m d2-200mm 12-200marrow_forward
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