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3 cards from this section. Quick, good the night before a test.
What is an eddy in fluid mechanics?
Think about how water swirls in a stream.
What does a Reynolds number less than 2300 indicate?
Consider the smoothness of the flow.
What definitively indicates a flow has transitioned to turbulent?
Consider the significance of high turbulence.
True or False: Eddies smoothly transport mass in laminar flow.
Think about how laminar flows behave.
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?
Use the formula for Reynolds number.
Discuss how energy cascades from large eddies to small eddies, highlighting the role of viscosity in this process.
Think about the implications of size on energy.
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