Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 10 - Fluids - Problems: 63

Answer

a. Laminar b. Turbulent

Work Step by Step

a. Calculate the Reynolds number. $$R=\frac{2(0.35m/s)(0.008 m)(1.05 \times 10^3 kg/m^3)}{4 \times 10^{-3}Pa \cdot s}=1470$$ This is less than about 2000, the onset of turbulence. b. If the speed doubles, so will the Reynolds number, so the flow is turbulent.
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