Asked Nov 13, 2019

Find the pressure difference on an airplane wing if air flows over the upper surface with a speed of 123 m/s, and along the bottom surface with a speed of 109 m/s.

If the area of the wing is 31 m2, what is the net upward force exerted on the wing?


Expert Answer

Step 1

Apply Bernoulli’s theorem between upper and lower surface of an airplane


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1 Pu P-Pu() Ap

Step 2

Then pressure difference on...

Ap(1.29kg/m3(123 -109)
2094.96 Pa

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Ap(1.29kg/m3(123 -109) 2094.96 Pa


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