Problem 1: Consider a flying wing with a NACA 2412 airfoil, an aspect atio of 10, and a wing area of 20 m2. Assume the span efficiency factor e =e= .9, and the Reynolds number 5.7 x 10. a) standard sea-level conditions. If the wing angle of attack is at 4-deg, compute Ct. and Cp at b) compute the lift L and the total drag D on the airnlane If the pressure altitude is 8 km and the flight velocity is 100 m/s,

Principles of Physics: A Calculus-Based Text
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Chapter15: Fluid Mechanics
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Problem 1:
Consider a flying wing with a NACA 2412 airfoil, an aspect
ratio of 10, and a wing area of 20 m2. Assume the span efficiency factor e= er =
0.9, and the Reynolds number = 5.7 x 10°.
If the wing angle of attack is at 4-deg, compute C., and Co at
a)
standard sea-level conditions.
b)
If the pressure altitude is 8 km and the flight velocity is 100 m/s,
compute the lift L and the total drag D on the airplane.
Transcribed Image Text:Problem 1: Consider a flying wing with a NACA 2412 airfoil, an aspect ratio of 10, and a wing area of 20 m2. Assume the span efficiency factor e= er = 0.9, and the Reynolds number = 5.7 x 10°. If the wing angle of attack is at 4-deg, compute C., and Co at a) standard sea-level conditions. b) If the pressure altitude is 8 km and the flight velocity is 100 m/s, compute the lift L and the total drag D on the airplane.
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