Fluid Mechanics: Fundamentals and Applications
4th Edition
ISBN: 9781259696534
Author: Yunus A. Cengel Dr., John M. Cimbala
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 7, Problem 41EP
Some students want to visualize flow over a spinning baseball. Their fluids laboratory has a nice water tunnel into winch they can inject multicolored dye streaklines, so they decide to test a spinning baseball in the water tunnel (Fig. P7-41E). Similarity requires that they match both the Reynolds number and the Strouhal number between their model test and the actual baseball that moves through the air at 90 mi/h and spins at 300 rpm. Both the air and the water are at 68°F. At what speed should they nm the water in the water tunnel, and at what rpm should they spin their baseball? Answers: 5.96 mi/h. 19.9 rpm
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Chapter 7 Solutions
Fluid Mechanics: Fundamentals and Applications
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