Bernoulli or Coanda

[Basil]

Who gets the blame in subsonic lift lectures these days; Bernoulli or Coanda? :confused:

(also posted in Civil Instructors)

[BEagle]

My money's on Dan the man! But the equation of continuity has to feature as well. Henri C's 'effect' can be used to waffle away the airflow pattern 'sticking to the wing' below the stall - but Dan B's 'theory' of Q+S = constant is probably the more common way of 'explaining' the decrease in static pressure over the upper wing surface.

Or just ask a passing bumble bee. Who probably doesn't care!

[Basil]

Some years ago I noticed that Encarta declared the Bernoulli effect to be merely a by-product of lift. When asked, Imperial College said "No, it's still Bernoulli."
If its Bernoulli then the lower upper and the upper lower planes of a bi-plane would cancel out :hmm: BUT - Coanda fits in nicely.

Anyway, I wondered what the BFS teaching was today.

[BEagle]

Probably something along the lines of: "Well it just does......"