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Laminar flow: Quiz

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Question 1: As the wing moves forward through the air, the boundary layer at first flows smoothly over the streamlined shape of the ________.
Lift (force)Wingtip deviceAirfoilStall (flight)

Question 2: The ________ is a very thin sheet of air lying over the surface of the wing (and all other surfaces of the airplane).
Boundary layerDrag (physics)Fluid mechanicsNavier–Stokes equations

Question 3: Video at YouTube (requires ________) Laminar flow in a pipe
Adobe Flash PlayerAdobe FlashAdobe After EffectsAdobe Dreamweaver

Question 4: The dimensionless ________ is an important parameter in the equations that describe whether flow conditions lead to laminar or turbulent flow.
Knudsen numberStrouhal numberFluid dynamicsReynolds number

Question 5: Because air has ________, this layer of air tends to adhere to the wing.
RheologyFluid dynamicsSurface tensionViscosity

Question 6: In fluid dynamics, laminar flow is a flow regime characterized by high momentum diffusion and low momentum ________.
VorticityWindConvectionTemperature

Question 7: For example, consider the flow of air over an airplane ________.
FlightWingLeading edge slatsWingtip device

Question 8: Video at YouTube (requires ________)
Adobe After EffectsAdobe FlashAdobe Flash PlayerAdobe Dreamweaver







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