Munson, Young and Okiishi's Fundamentals of Fluid Mechanics, Binder Ready Version
8th Edition
ISBN: 9781119080701
Author: Philip M. Gerhart, Andrew L. Gerhart, John I. Hochstein
Publisher: WILEY
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Question
Chapter 12.1, Problem 1P
To determine
Whether the device is a pump or a turbine.
Expert Solution & Answer
Answer to Problem 1P
The device is a pump.
Explanation of Solution
Pump: It is defined as a machine or device which is used to force a fluid to move in a given direction. In the case of pump, the work is done on the fluid.
Turbine: It is defined as a
Draw the velocity diagram for the given figure.
Figure-(1)
Write the expression for the linear velocity of the blade at inlet.
Here, the radius of the blade at inlet is
Write the expression for the linear velocity of the blade at exit.
Here, the radius of the blade at outlet is
Since, the angular velocity is remains constant at inlet and outlet, only the radius is different. The outlet radius is greater than the inlet radius. Hence, the exit velocity is also greater than the inlet velocity. Due to this the direction of absolute velocity is changed from
Therefore, the work is done on the fluid by the device hence the device is a pump.
Conclusion:
Thus, the device is a pump.
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Chapter 12 Solutions
Munson, Young and Okiishi's Fundamentals of Fluid Mechanics, Binder Ready Version
Ch. 12.1 - Prob. 1PCh. 12.1 - Prob. 2PCh. 12.1 - Prob. 3PCh. 12.1 - Prob. 4PCh. 12.1 - Sketched in Fig. P12.6 are the upstream [section...Ch. 12.4 - The radial component of velocity of water leaving...Ch. 12.4 - Water enters a centrifugal pump with an absolute...Ch. 12.4 - A centrifugal pump impeller is rotating at 1200...Ch. 12.4 - A centrifugal radial water pump has the dimensions...Ch. 12.4 - Water is pumped with a centrifugal pump, and...
Ch. 12.4 - The performance characteristics of a certain...Ch. 12.4 - The performance characteristics of a certain...Ch. 12.4 - Determine algebraic equations for the pump head...Ch. 12.4 - In Example 12.3, how will the maximum height, z1,...Ch. 12.4 - A centrifugal pump with a 7-in.-diameter impeller...Ch. 12.4 - Prob. 17PCh. 12.4 - Prob. 18PCh. 12.4 -
A centrifugal pump having a head-capacity...Ch. 12.4 - A centrifugal pump having a 6-in.-diameter...Ch. 12.4 - Prob. 21PCh. 12.4 - Prob. 22PCh. 12.4 - Prob. 23PCh. 12.4 - Prob. 24PCh. 12.4 - Prob. 25PCh. 12.5 - Prob. 26PCh. 12.5 - Prob. 27PCh. 12.5 - Prob. 28PCh. 12.5 - Prob. 29PCh. 12.5 - Prob. 30PCh. 12.5 - Prob. 32PCh. 12.5 - Prob. 33PCh. 12.6 - Prob. 34PCh. 12.6 - Prob. 35PCh. 12.6 - Prob. 36PCh. 12.6 - Prob. 37PCh. 12.6 - Prob. 38PCh. 12.7 - Prob. 39PCh. 12.7 - Prob. 40PCh. 12.7 - Prob. 41PCh. 12.7 - Prob. 42PCh. 12.7 - Prob. 43PCh. 12.7 - Prob. 44PCh. 12.8 - An inward-flow radial turbine (see Fig. P12.48)...Ch. 12.8 - Prob. 46PCh. 12.8 - Prob. 47PCh. 12.8 - Prob. 48PCh. 12.8 - Prob. 49PCh. 12.8 - A small Pelton wheel is used to power an...Ch. 12.8 - Prob. 51PCh. 12.8 - Prob. 52PCh. 12.8 - Prob. 53PCh. 12.8 - Prob. 54PCh. 12.8 - Prob. 55PCh. 12.8 - Prob. 56PCh. 12.8 - Prob. 57PCh. 12.8 - Prob. 58PCh. 12.8 - Prob. 59PCh. 12.8 - Prob. 60PCh. 12.8 - Prob. 61PCh. 12.8 - Prob. 62PCh. 12.8 - Prob. 63PCh. 12.8 - Prob. 64PCh. 12.9 - Prob. 65PCh. 12.9 - Prob. 66PCh. 12.9 - Prob. 67PCh. 12.9 - Prob. 69PCh. 12.10 - Prob. 1LLP
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