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4 cards from this section. Quick, good the night before a test.
Define viscosity.
Think about how thick or thin a fluid is.
What is the use of Reynolds number?
It's a dimensionless number!
What does a high Reynolds number indicate?
Think high-speed flows!
Is dynamic similarity important in modeling fluid flows?
Would models represent real-life behavior?
A model of a car tested in a wind tunnel has a drag force of 200 N. If the scale ratio is 1:10, what would be the drag force on the full-scale car?
Understand the effect of area in drag calculations.
Calculate the power required to overcome drag if the drag force is 150 N and the car's velocity is 30 m/s.
Power is the product of force and velocity!
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