PPRuNe Forums - View Single Post - Why Do Aircraft fy? Flat Plate Lift Vs Bernoulli?
Old 16th Feb 2009, 13:28
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b377
 
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A Physical Description of Lift

Try this link article by D Anderson.You will find that Newtons second law prevails when considering the mechanism of lift from a physical standpoint. The classical Bernoulli explanation is quite misleading if not downright wrong. (The Bernoulli diff pressure effect is present alright but fails to account for bulk amount of lift generated and is therefore secondary) It is the Coanda effect which is responsible for the bending of the flow around an aerifoil resulting in the downwash which by reaction momentum exchange produces lift. Lift is not a free lunch, the power required can be nicely calculated by this Newtonian approach.

D Anderson's book is basic but very good written by a blend of a physicist and pilot.
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