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2 cards from this section. Quick, good the night before a test.
Define boundary layer.
Think about where the effects of viscosity are felt the most.
What is the significance of Reynolds number?
Consider how it relates to the flow type: laminar or turbulent.
What is the primary purpose of the Reynolds number?
Remember what the Reynolds number indicates about flow behavior.
True or False: Turbulent boundary layers grow slower than laminar boundary layers.
Think about the growth rates discussed.
Given a flat plate with water flowing over it at 1 m/s with a laminar boundary layer thickness of 5 mm, calculate the wall shear stress.
Substitute the values into the formula carefully and check units!
Analyze the drag force on a 2 m long flat plate in turbulent water flow with a velocity of 2.5 m/s and a boundary layer thickness of 8 mm.
Keep the entire context in mind and remember to convert your units if necessary.
4 more questions in this section. Enroll free to practise them all.
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