Question: A one-twelfth-scale model of an airplane is to be tested at 20C in a pressurized wind tunnel. The prototype is to fly at 240 m/s

A one-twelfth-scale model of an airplane is to be tested at 20°C in a pressurized wind tunnel. The prototype is to fly at 240 m/s at 10-km standard altitude. What should the tunnel pressure be in atm to scale both the Mach number and the Reynolds number accurately?

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For air at 10000m standard altitude Table A6 take 04125 kgm3 147E5 kgm s and sound ... View full answer

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