Question 424.
Use Bernoulli's equation to estimate the upward force on an airplane's wing if the average flow of speed of air is 191 m/s ABOVE the wing and 162 m/s BELOW the wing. The density of the air is 1.6 kg/m3 and the area of each wing surface is 26.3m3.
Answer 424.
Pressure below the wing is more than pressure above the wing
=> P1 + (1/2) dv1^2 = P2 + (1/2) dv2^2
=> P2 - P1
= (1/2) * 1.6 * [(191)^2 - (162)^2]
= 0.8 * 10237 N/m^2
= 8189.6 N/m^2
=> upward force
= (P2 - P1) x area
= 8189.6 * 26.3 N
= 215386.5 N.
Link to YA!
Use Bernoulli's equation to estimate the upward force on an airplane's wing if the average flow of speed of air is 191 m/s ABOVE the wing and 162 m/s BELOW the wing. The density of the air is 1.6 kg/m3 and the area of each wing surface is 26.3m3.
Answer 424.
Pressure below the wing is more than pressure above the wing
=> P1 + (1/2) dv1^2 = P2 + (1/2) dv2^2
=> P2 - P1
= (1/2) * 1.6 * [(191)^2 - (162)^2]
= 0.8 * 10237 N/m^2
= 8189.6 N/m^2
=> upward force
= (P2 - P1) x area
= 8189.6 * 26.3 N
= 215386.5 N.
Link to YA!
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