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5 cards from this section. Quick, good the night before a test.
What is a turbulent boundary layer?
Think about how water flows differently over smooth versus rough surfaces.
Describe displacement thickness.
Consider the effect of slow flow near a surface.
Which of the following describes turbulent boundary layers?
Consider how a turbulent river flows compared to a calm lake.
True or False: Displacement thickness is the distance that streamlines are deflected due to boundary layer effects.
Reflect on how boundary layers influence flow patterns.
Consider a flat plate in a flow with a speed of 5 m/s. Using the one-seventh power law, calculate the velocity at a point 0.02m within the turbulent boundary layer.
You may need to determine the boundary layer thickness first based on flow conditions.
Evaluate how the presence of a turbulent boundary layer affects the drag force on a large aircraft wing in cruise conditions.
Review how turbulent layers generate drag compared to laminar layers.
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