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3 cards from this section. Quick, good the night before a test.
What is geometric similarity?
Think about scaling a real object down.
What does the Reynolds number represent?
Focus on flow patterns.
Which of the following represents dynamic similarity?
Think about what forces are at play in fluid dynamics.
True or False: Kinematic similarity is only concerned with the physical dimensions of a model.
Focus on what happens with fluid movement.
A model of a bridge is constructed at a scale of 1:50. If the actual bridge experiences a Reynolds number of 1.2 x 10^6, what must the Reynolds number be for the model if the flow conditions remain similar?
Consider how scaling ratios affect fluid dynamics.
You are tasked with testing an aircraft model in a wind tunnel. If the full-scale aircraft has a maximum speed of 300 km/h, and the model is scaled down to 1/10th its size, what speed must the model achieve in the wind tunnel to reflect true conditions based on kinematic similarity?
Think about speed ratios and mass effects.
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