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Old 18th Jan 2020, 02:12
  #18 (permalink)  
tdracer
 
Join Date: Jul 2013
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To elaborate a bit on what Gauges and MechEngr wrote, what creates lift is the difference in air pressure between the top and the bottom of the wing. If you could magically measure the air pressure at every point on the wing, and then integrate it over the entire wing surface, the net result with be the lift and drag vectors that the wing creates. Those differences in air pressure are a direct result of the local velocity of the air - when the air speeds up, the local static pressure drops, when it slows down the local static pressure increases. The net result is lift and drag. Thinking about those pressure differences in terms of Bernoulli or Newton is largely a matter of preference.
Personally I think of it in terms of Bernoulli - it works for thrust as well as lift and drag - and as MechEngr notes it's (relatively) easy to model in computer airflow simulations. But I've found the easiest way to explain it to the initiated is to simply describe the pressure difference between the top and bottom of the wing.
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