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Why does wind velocity increase over a wing?

Also I have a bit of a paradox, people explain lift by saying there is a lower pressure region on the top of the airfoil and a higher pressure region on the lower airfoil. Then, they explain that there is a low pressure region due to the increased velocity of air (Bernoulli's).

They also explain that the velocity of air increases due to the low pressure region, surely one has to induce one or the other, or neither would happen? From where the extra energy is provided for kinetic energy of wind to increase?

Qmechanic
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The red arrow indicates the direction of airflow velocity on the surface of the wing. Due to the angle of attack of the wing, a wedge-shaped space is formed between the moving air and the upper surface of the wing (as indicated by the blue arrow). Due to the viscosity of air, the flowing air will carry away the stationary air in the wedge-shaped space, resulting in low pressure in the wedge-shaped space. In this way, the air moving on the surface of the wing will move along the curve of the wing surface. This is the reason for the low pressure generated on the surface of the wing. So the low pressure on the surface of the wing is not caused by the high velocity of the air.

Of course, due to the generation of low pressure, the velocity of the air on the surface of the wing will also increase. But this is not the cause of low pressure.

enbin
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