4. The aerodynamic behavior of a flying insect is to be investigated in a wind tunnel using a ten-times scale model. It

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4 The Aerodynamic Behavior Of A Flying Insect Is To Be Investigated In A Wind Tunnel Using A Ten Times Scale Model It 1 (45.08 KiB) Viewed 34 times

4. The aerodynamic behavior of a flying insect is to be investigated in a wind tunnel using a ten-times scale model. It is known that the insect's velocity depends on its size (characteristic length 1), wing flapping frequency o), surrounding fluid's density P and viscosity u. If the insect flaps its wings 50 times a second when flying at 1.25 m/s, determine the wind tunnel air speed and wing oscillation frequency required for dynamic similarity. Do you expect that this would be a successful or practical model for generating an easily measurable wing lift? If not, can you suggest a different fluid (e.g. water, or air at a different pressure and/or temperature that would produce better modeling? (20 points)