A Cessna 172 has a chord length of 5 ft and a cruise speed of 140 mph (or 205 ft s). The scaled model in a wind tunnel has a chord length of 2.5 ft. To achieve Reynolds number similarity, assuming the same air density and viscosity at model- and full-scale, the airspeed in wind tunnel testing should be set to: 102.5 fts 1 410 fts 1 820 fts 1 205 fts 1

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A Cessna 172 has a chord length of 5 ft and a cruise speed of 140 mph (or 205 ft s¹). The scaled
model in a wind tunnel has a chord length of 2.5 ft. To achieve Reynolds number similarity,
assuming the same air density and viscosity at model- and full-scale, the airspeed in wind tunnel
testing should be set to:
102.5 fts 1
410 fts 1
820 fts 1
205 fts 1
Transcribed Image Text:A Cessna 172 has a chord length of 5 ft and a cruise speed of 140 mph (or 205 ft s¹). The scaled model in a wind tunnel has a chord length of 2.5 ft. To achieve Reynolds number similarity, assuming the same air density and viscosity at model- and full-scale, the airspeed in wind tunnel testing should be set to: 102.5 fts 1 410 fts 1 820 fts 1 205 fts 1
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