A model of a plane is built to a scale of 1/14 and is tested in...

A model of a plane is built to a scale of 1/14 and is tested in a wind tunnel.

If the plane is designed to travel at 800 km/h at an altitude of 5 km, determine the required density of the air in the wind tunnel so that the Reynolds and Mach numbers are the same. Assume the temperature is the same in both cases and the speed of sound in air at this temperature is 340 m/s. ρp = 0.7364 kg/m3 at an altitude of 5 km.

ρm =

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samet mamat answered 2 years ago

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