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4 cards from this section. Quick, good the night before a test.
Define boundary layer.
Consider the region close to any solid surface.
What does displacement thickness represent?
Think about how the flow changes near a wall.
What is the barrier layer effect?
Consider flow behavior close to surfaces.
True or False: The energy thickness is defined by the momentum loss due to viscous flow.
Recall the definitions of energy and momentum thickness.
Given a profile where u/U = 0.1 + 0.9 * (y/δ)^2, derive the formula for displacement thickness.
Break down the integral to manage the two terms separately.
For a scenario where the fluid's viscosity is doubled, predict how this impacts the boundary layer thickness.
Think about how viscous fluids behave compared to less viscous ones.
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