WATER RESOURCES ENGINEERING (CL)
3rd Edition
ISBN: 9781119625827
Author: Mays
Publisher: WILEY
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Chapter 4, Problem 4.5.3P
To determine
The rate of flow in the given pipe system.
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The pressure gauges are inserted at A and B in a vertical pipe converging water. The diameters at A and B are 150mm and 75mm respectively. The point B is 2.3m below point A. When rate of flow down the pipe is 0.021m³/s. The pressure at B is 117.72 KN/m² greater than at A.
The losses in pipe between A and B are expressed as(KVa²/2g) where Va is velocity of A. Find the value of K.
If the pressure gauges at A and B are replaced by tubes filled with water and connectef to a u-tube containing Hg(SHg=13.6) calculate the value of the reading manometer.
Example 3: A pipe gradually tapers from 0.6m at A to 0.9m at point B. the
elevation difference between A and B is 3m. Find pressure head and pressure at
point B if the pressure head at A is 15m and velocity at A is 2m/s. Assume the
frictionless flow.
Chapter 4 Solutions
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- Fluid Mechanics. Solve ASAP.arrow_forwardA horizontal 150mm diameter pipe gradually reduces its section to 50mm diameter, subsequently, enlarging into 150mm section. The pressure in the 150-mm pipe at a point just before entering the reducing section is 140 kPa and in the 50mm section at the end of the reducer, the pressure is 70 kPa. If 600mm of head is lost between the points where the pressures are known, compute the rate of flow of water through the pipe.arrow_forwardGiven a three-pipe system, the total pressure drop is PA - PB = 150,000 Pa, and the elevation drop is ZA ZB = 5 m. The pipe data are: Pipe 1 2 3 L, m 100 150 80 A. O 0.00283 m³/s O 0.00146 m³/s The fluid is water (density 1000 kg/m³ and kinematic viscosity 1.02x10-6 m²/s). Calculate the flow rate Q in m³/h through the system. (3 O 0.00675 m³/s O 0.00834 m³/s d, cm 8 6 4 1 €, mm 0.24 0.12 0.20 2 eld 0.003 0.002 0.005 • Barrow_forward
- Q2. Flowrate of water through bend pipe (90°) is 0.21 m/s. The pipe diameter at the inlet is 150 mm and the outlet diameter is 75 mm. The outlet is higher than the inlet by 2 m. Frictional losses in the pipe is equal a loss factor of 0.5 applied to the inlet velocity head. The pressure head at the inlet is 8.6 m and the volume of water in the bend is 0.6 m?. Calculate the resultant force and its direction.arrow_forwardnat4arrow_forwardWater at 40°C (p=62.42 lbm/ft³ and u=1.038×10-³ lbm/ft.s) is flowing steadily through a 0.12-in- diameter 30-ft-long horizontal pipe at an average velocity of 3.0 ft/s Determine (a) the head loss, (b) the pressure drop, and (c) the pumping power requirement to overcome this pressure drop. [Roughness of stainless steel = 7.0*10-6 ft]arrow_forward
- What is pipe roughness? A pump is located 5 m above the surface = 8170 M/m¹) in a closed tank. The pressure in the space above liquid surface is 35 Kpa. The suction line to the pump is 15 m of 15 cm diameter pipe (/= 0.025). The discharge from the pump is 60 m of 20 cm diameter pipe (/= 0.03). The pipe discharges in a submerged fashion to an open tank whose free liquid surface is 3 m lower than the liquid surface in the pressure tank. If pump puts 1.5 kW Into the liquid, determine the flow rate and the pressure in the pipe on the suction side of the pump. Assume turbulent flow.arrow_forwardPlease submit the png solution.arrow_forwardEstimate the maximum water hammer pressure generated in a rigid pipe of a 3 m dia pipe with an initial velocity of 3.0 ms-¹ and the pipe is 8 km long. The downstream valve at the pipe end is closed in 4 seconds. The bulk modulus of water is 2.25x106 kPa and the mass density is 995.7 kg/m³. Also determine the critical time of closure.arrow_forward
- pls helparrow_forwardlen4arrow_forward6. A horizontal 150 mm diameter pipe gradually reduces its section to 50 mm diameter, subsequently enlarging into 150 mm section. The pressure in the 150 mm pipe at the point just before entering the reducing section is 140 kPa and in the 50 mm section at the end of the reducer the pressure is 70 kPa. If 600 mm of head is lost between the points where the pressures are known, compute the rate of flow of water thru the pipe.arrow_forward
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