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At a sudden contraction in a pipe the diameter changes fromD1 to D2. The pressure drop

Fundamentals of Fluid Mechanics | 8th Edition | ISBN: 9781119080701 | Authors: Philip M. Gerhart, Andrew L. Gerhart, John I. Hochstein ISBN: 9781119080701 456

Solution for problem 7.9 Chapter 7.3

Fundamentals of Fluid Mechanics | 8th Edition

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Fundamentals of Fluid Mechanics | 8th Edition | ISBN: 9781119080701 | Authors: Philip M. Gerhart, Andrew L. Gerhart, John I. Hochstein

Fundamentals of Fluid Mechanics | 8th Edition

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Problem 7.9

At a sudden contraction in a pipe the diameter changes fromD1 to D2. The pressure drop, p, which develops across the contractionis a function of D1 and D2, as well as the velocity, V, inthe larger pipe, and the fluid density, , and viscosity, . UseD1, V, and as repeating variables to determine a suitable set of dimensionless parameters. Why would it be incorrect to include thevelocity in the smaller pipe as an additional variable?

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Chapter 7.3, Problem 7.9 is Solved
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Textbook: Fundamentals of Fluid Mechanics
Edition: 8
Author: Philip M. Gerhart, Andrew L. Gerhart, John I. Hochstein
ISBN: 9781119080701

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At a sudden contraction in a pipe the diameter changes fromD1 to D2. The pressure drop