17.5.2 - Eddy Size and Frequency
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Practice Questions
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What is an eddy in fluid mechanics?
💡 Hint: Think about how water swirls in a stream.
What does a Reynolds number less than 2300 indicate?
💡 Hint: Consider the smoothness of the flow.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What definitively indicates a flow has transitioned to turbulent?
💡 Hint: Consider the significance of high turbulence.
True or False: Eddies smoothly transport mass in laminar flow.
💡 Hint: Think about how laminar flows behave.
1 more question available
Challenge Problems
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Given a pipe flow scenario with a diameter of 0.1 m, determine the Reynolds number if the fluid has a density of 1000 kg/m³ and flows at a velocity of 5 m/s with a dynamic viscosity of 0.001 Pa.s. Is the flow laminar, transitional, or turbulent?
💡 Hint: Use the formula for Reynolds number.
Discuss how energy cascades from large eddies to small eddies, highlighting the role of viscosity in this process.
💡 Hint: Think about the implications of size on energy.
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