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2 cards from this section. Quick, good the night before a test.
Define displacement thickness.
Think about how viscous effects alter flow near surfaces.
What does momentum thickness measure?
Consider how momentum is transferred in fluids.
What does displacement thickness indicate?
Think about how viscosity changes the path of flow near surfaces.
True or False: Energy thickness measures momentum loss.
Recall the distinctions between energy and momentum in fluid flow.
Calculate the displacement thickness and momentum thickness for a velocity profile given by u/U = 1 - (y/δ)^2. Provide required steps and reasoning.
Think about how to substitute the given velocity profile into the definitions of each thickness.
Discuss the impact of a thick boundary layer on the performance of a hydraulic structure. Provide examples.
Consider how resistance forces change based on thickness and viscosity.
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