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Wind Tunnel Testing

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P

PMD

Well-Known Member
Joined
Apr 11, 2015
Messages
1,996
Location
Martensville SK
Had a discussion last week about testing things with scale models. I know the model aircraft people can build exact replicas and they will fly, but what things work 1:1 at scale and what things don't. Particularly curious about allowances for or not considering viscosity of air - as that is one thing I can't imagine scaling???? Concern is regarding wind tunnels, not just the models within.
 
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