Fox And Mcdonald's Introduction To Fluid Mechanics

9th Edition

ISBN: 9781118921876

Author: Pritchard, Philip J.; Leylegian, John C.; Bhaskaran, Rajesh

Publisher: WILEY

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

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Textbook Question

Chapter 10, Problem 24P

If the impeller of Problem 10.20 rotates between horizontal planes of infinite extent and the flow rate is 25 L/s, what rise of pressure may be expected between one point having r = 150 mm and another having r = 225 mm?

A centrifugal pump impeller having dimensions and angles as shown rotates at 500 rpm. Assuming a radial direction of velocity at the blade entrance, calculate the flow rate, the pressure difference between inlet and outlet of blades, and the torque and power required to meet these conditions.

Chapter 10, Problem 24P, If the impeller of Problem 10.20 rotates between horizontal planes of infinite extent and the flow

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Chapter 10, Problem 23P

Chapter 10, Problem 25P

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3. A centrifugal pump impeller runs at 1400 rpm, and vanes angle at exit is 25 degrees. The tangential velocity at exit is 29.33 m/s. Whirl velocity at impeller tip is 23.75 m/s. The impeller has an internal diameter of 0.2 m. Assuming a constant radial flow through the impeller at 2.6 m/s. Calculate: a. The vanes angle at exit b. The angle made by the absolute velocity of water at exit with tangent c. The inlet vane angle d. The work done per kg of water e. Draw the velocity triangle of the system f. Find the impeller external diameter

The impeller of a centrifugal pump is 0.5 m in diameter and rotates at 1200 r .p. m . ; blades are curved back to an angle of 30⁰ to the tangent at outlet tip . If the measured velocity of flow at outlet is 5 m/ sec. If the pump is provided with whirlpool chamber which reduces the velocity of water by 50%.Net pressure energy at pump outlet *pressure head at impeller outlet And work input /kg of water/sec

A centrifugal pump running at 3500 rpm pumps water at a rate of 0.01cu. m./sec. The water enters axially, and leaves the impeller at 5m/s relative to the blades, which are radial at the exit. If the pump requires 5kW, and is 67% efficient, estimate the basic dimensions (impeller exit diameter and width).

Chapter 10 Solutions

Fox And Mcdonald's Introduction To Fluid Mechanics

Ch. 10 - The geometry of a centrifugal water pump is r1 =...Ch. 10 - Find the resulting -groups when (a) D, , and Q or...Ch. 10 - Consider the centrifugal pump impeller dimensions...Ch. 10 - Dimensions of a centrifugal pump impeller are Ch. 10 - Dimensions of a centrifugal pump impeller are Ch. 10 - The blade is one of a series. Calculate the force...Ch. 10 - This blade is one of a series. What force is...Ch. 10 - A centrifugal water pump, with 15-cm-diameter...Ch. 10 - A centrifugal water pump designed to operate at...Ch. 10 - A series of blades, such as in Example 10.13,...

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