A one quarter scale model aircraft is tested at high incidence in a compressed air wind tunnel where the density is 10 times standard air density. It is found that the wings shed vortices at a frequency of 25 Hz. For conditions of dynamic similarity, what will be the equivalent vortex shedding frequency for the full-scale aircraft? You may assume that the air dynamic viscosity remains constant in model and full-scale conditions.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.70P
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Please show working out aND explain the bukingham theorem 

A one quarter scale model aircraft is tested at high incidence in a compressed air wind
tunnel where the density is 10 times standard air density. It is found that the wings
shed vortices at a frequency of 25 Hz. For conditions of dynamic similarity, what will
be the equivalent vortex shedding frequency for the full-scale aircraft? You may
assume that the air dynamic viscosity remains constant in model and full-scale
conditions.
Transcribed Image Text:A one quarter scale model aircraft is tested at high incidence in a compressed air wind tunnel where the density is 10 times standard air density. It is found that the wings shed vortices at a frequency of 25 Hz. For conditions of dynamic similarity, what will be the equivalent vortex shedding frequency for the full-scale aircraft? You may assume that the air dynamic viscosity remains constant in model and full-scale conditions.
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