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What is the difference between the speed of the air below the wing and the speed of the air above the wing?
Wiki User
∙ 14y ago
For a wing producing lift, the velocity of the air above the wing is greater than that below the wing. The Bernoulli Principle (named for 1700's Swiss physicist/mathematician Daniel Bernoulli) can be used to estimate the lift generated by a wing due to the difference in velocities above and below the wing. However, contrary to some popular science texts, there is no requirement that the air molecules above the wing meet up with the air molecules below the wing exactly where they parted. The air moves faster over the top of the wing producing lift not because of its shape, but because of something called circulation, a flow pattern around the wing superimposed on the airflow. See the following links for an excellent explanation on this.
http://www.av8n.com/how/htm/airfoils.html#sec-circulation
http://www.eskimo.com/~billb/wing/airfoil.html
Wiki User
∙ 14y ago
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