Bernoulli's Principle - airfoil

fluid mechanics animation

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[ericgoujon]

tres interressant..

[bcstractor]

This has almost nothing to do with Bernoulli and more to do with separation of flows.

[bogieman987]

This makes my nipples feel cold for some reason

[g1geo1g]

I agree, there is no such thing as suction. The Bernouilli principle cannot be applied here either, as there is no evidence of energy being conserved. We have no idea how much energy exchange or pressure variation we are observing to apply Bernoulli to this situation. However, this does indicate the 'drag' effect as opposed to an attached flow.

[meganite03]

I'm wondering the same thing as mdntdncr. Is it generated or is the airfoil just designed in such a way that it automatically happens?

[sjh7132]

@encikafook

That airfoil is in a hard stall. If it had a more reasonable angle of attack no suction would be needed.

[Superegio42]

Laminar flow, the second shot.

[mdntdncr]

and how is it that this 'suction' is applied?

[encikafook]

so it means on the tip of the airfoil, suction is needed to provide a smooth flow of fluid on the top side?