Second, the assumption that adjacent air molecules at the leading edge must reunite at the trailing edge has no basis in physics. Flow visualizations show that molecules passing over the top of an airfoil actually arrive at the trailing edge well before those passing underneath. When the Equal Transit assumption is used to compute lift via Bernoulli’s equation, the predicted lift is far smaller than what is actually measured.
The two are not competing explanations but partners in a unified, coherent picture. understanding aerodynamics arguing from the real physics pdf
Analyze the of the Navier-Stokes equations. Review the physics of supersonic flight and shockwaves . Share public link Second, the assumption that adjacent air molecules at
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Crucially, this approach avoids the false dichotomy of "Newton vs. Bernoulli." The pressure differentials predicted by Bernoulli are the mechanism by which the wing exerts force on the fluid, satisfying Newton's Second Law. One cannot exist without the other; they are different expressions of the same physical phenomenon.
If you ask a pilot, a physics student, or an engineer how a wing generates lift, you'll likely hear one of two explanations:
The downward pull of gravity on the aircraft's mass.