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Is high airspeed around the trailing edge causes strong viscous forces?

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in Aerodynamics by (773k points)
Is high airspeed around the trailing edge causes strong viscous forces?

(a) False

(b) True

I got this question in examination.

The doubt is from The Kutta Condition in portion Incompressible Flow over Airfoils of Aerodynamics

1 Answer

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by (720k points)
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Best answer
Right option is (a) False

To explain: The high airspeed around the trailing edge causes strong viscous forces to act on the air adjacent to the trailing edge of the airfoil and the result is that a strong vortex accumulates on the topside of the airfoil, near the trailing edge.

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