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2 cards from this section. Quick, good the night before a test.
Define shear stress in your own words.
Think about how fluids interact with surfaces.
What is power in the context of fluid dynamics?
Recall the formula P = D * V.
What does shear stress depend on?
Think about how thickness affects flow.
True or False: The Reynolds number is used to indicate the flow type.
Recall its definition.
A mock-up car design has a frontal area of 3.0 m², with a drag coefficient of 0.5. If the testing velocity is 25 m/s, calculate the drag force using the appropriate formulas.
Substitute values into the drag force equation.
If a prototype car operates at a Reynolds number of 1.45 x 10^6, what flow type does it indicate? Discuss what it implies for the design.
Remember what Reynolds number thresholds signify for design.
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