Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 16, Problem 16.20PP
A vehicle is to be propelled by a jet of water impinging on a vane as shown in Fig.16.18. The jet has a velocity of
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a pump is delivering 160 liters per sec of water using an impeller diameter of 240 mm and operating at a speed of 1800 rpm. if the speed held constant and the impeller diameter is change to 203.2 mm, what is the new dischange og the pump in liters per second
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A jet of water impinges on a single smooth flat vane at its centre. The velocity of the jet is 70 m/s and the diameter 120 mm.Calculate the force on the vane, if it is moving with a velocity of 30 m/s in the direction of jet. Determine the power and efficiency. Also, find the speed of plate at which maximum efficiency may occur.
Chapter 16 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 16 - Calculate the force required to hold a flat plate...Ch. 16 - What must be the velocity of flow of water from a...Ch. 16 - Calculate the force exerted on a stationary curved...Ch. 16 - A highway sign is being designed to withstand...Ch. 16 - Compute the forces in the vertical and horizontal...Ch. 16 - Figure 16.13 O shows a free stream of water at 180...Ch. 16 - Compute the horizontal and vertical forces exerted...Ch. 16 - In a plant where hemispherical cup-shaped parts...Ch. 16 - A stream of non-flammable oil (sg 5 0.90) is...Ch. 16 - A 2 -in-diameter stream of water having a velocity...
Ch. 16 - Figure 16.17 O represents a type of flowmeter in...Ch. 16 - Water is piped vertically from below a boat and...Ch. 16 - A 2 -in nozzle is attached to a hose with an...Ch. 16 - Seawater (sg 5 1.03) enters a heat exchanger...Ch. 16 - A reducer connects a standard 6 -in Schedule...Ch. 16 - Calculate the force on a elbow attached to an in...Ch. 16 - Calculate the force required to hold a 90 elbow in...Ch. 16 - Calculate the force required to hold a 180 close...Ch. 16 - A bend in a tube causes the flow to turn through...Ch. 16 - A vehicle is to be propelled by a jet of water...Ch. 16 - A part of an inspection system in a packaging...Ch. 16 - Shown in Fig. 16.20 is a small decorative wheel...Ch. 16 - For the wheel described in Problem 16.22. compute...Ch. 16 - A set of louvers deflects a stream of warm air...Ch. 16 - Prob. 16.25PPCh. 16 - Prob. 16.26PPCh. 16 - Figure 16.22 shows a device for clearing debris...Ch. 16 - Prob. 16.28PPCh. 16 - Figure 16.23 is a sketch of a turbine in which the...Ch. 16 - Repeat Problem 16.29 with the blade rotating as a...Ch. 16 - Repeat Problem 16.29, except with the blade...
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- A jet of water from a nozzle discharging into air has a diameter of 6 in and a mean velocity of 120 ft per second. Compute the velocity head and horsepower in the jet.arrow_forwardA radial bladed centrifugal pump running at 1440 rpm is to deliver 30 l/min of water against a head of 20 m. Assuming flow velocity as 3 m/s. Determine the diameter and width of the impeller at the outlet.arrow_forwardProblem 4: Compute the specific speed for a pump operating at 1750 rpm delivering 12 000 gal/min of water at a total head of 300 ft. 1arrow_forward
- A centrifugal pump delivers 2.5 cfs of water against a head of 25 ft at 1500 rpm and requires 10 hp. If the speed is reduced to 1250 rpm calculate the flow (in m^3/s), assuming the same efficiency.arrow_forwardAn open tank contains water which is to be drained completely. The exit pipe is exposed to the atmosphere. The distance from the water surface to the exit pipe is 6 m. And the distance from the water surface to point B is 1.2 m. a. Calculate the pressure at point B. b. Calculate the velocity at point B and point C.arrow_forwardA centrifugal pump is designed to operate at 1800 revolutions per minute and with a head of 55 meters. Calculate the speed reduction that occurs when the impeller diameter is reduced from 300 to 250 mm.arrow_forward
- A water jet 50 mm in diameter impinges on a cone as shown in Fig. 4. If the water velocity has the same magnitude at all points in the flow, calculate the thickness of the liquid layer at a location where the cone diameter is 0.5 m. If the mass flowrate of the water is 16 kg/s, calculate the flows peed.arrow_forwardThe plunger diameter of a single-acting reciprocating pump is 115 mm and the stroke is 230 mm. The suction pipe is 90 mm in diameter and 4.2 m long. If cavitation takes place at the suction head of 4 m, the barometer stands at 10.3 m of water, and the water level in the sump is 3 m below the pump cylinder axis. 3.1 Find the maximum allowable speed to operate the pump 3.2 What power is expected in overcoming friction at this speed, takef = 0.01arrow_forward6.7. Calculate the force exerted by the water on this orifice plate. Assume that water in the jet between orifice plate and vena contracta weighs 4.0 lb. 0.75 0.20 10' darrow_forward
- Figure 16.23 is a sketch of a turbine in which the incom- ing stream of water at 15°C has a diameter of 7.50 mm and is moving with a velocity of 25 m/s. Compute the force on one blade of the turbine if the stream is deflected through the angle shown and the blade is stationary.arrow_forwardA centrifugal pump with radial inlet (alpha4 = 90°) operates with water at a flow of 0.3 m3 /s. The rotor diameter is 250 mm and the blades it is 30 mm wide at the outlet. Assume that the blades are radial at the exit. Determine the theoretical height considering infinite number of blades and power required when the pump runs at 800 rpm.arrow_forwardPelton wheel has a mean bucket speed of 10 m/s with a jet of water flowing at the rate of 700 lps under a head of 30 m. The buckets deflect the jet through an angle of 160°. Calculate the power given by water to the runner and the hydraulic efficiency of the turbine. Assume the coefficient of nozzle as 0.98.arrow_forward
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