Q.10. To predict the drag on an aircraft ata flight speed of 150 m/s, where thecondition of air is such that the local speedof sound is 310 m/s, a pressurized lowtemperature tunnel is used. Density,viscosity and local sonic velocity at tunnelcondition are 7.5 kg/m³, 1.22 x 105 Ns/m²and 290 m/s. Determine the flow velocityand the scale of the model. Assume fulldynamic similarity should be maintained.Density and viscosity at the operatingconditions are 1.2 kg/m³ and 1.8 x 105 Ns/m².

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Answered: need of Fair is su s 310 m

Engineering

Mechanical Engineering

need of Fair is su s 310 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Q.10. To predict the drag on an aircraft at
a flight speed of 150 m/s, where the
condition of air is such that the local speed
of sound is 310 m/s, a pressurized low
temperature tunnel is used. Density,
viscosity and local sonic velocity at tunnel
condition are 7.5 kg/m³, 1.22 x 105 Ns/m²
and 290 m/s. Determine the flow velocity
and the scale of the model. Assume full
dynamic similarity should be maintained.
Density and viscosity at the operating
conditions are 1.2 kg/m³ and 1.8 x 105 Ns/m².

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