Backwash Causes Lift?

On Oct 8, 12:32 pm, Phil wrote:
There isn't any debate about what a wing stall is, and what causes
it. It has been well-explored in wind tunnel testing. The phenomenon
of wing stall is real-world evidence that the top surface of the wing
is a large contributor to lift. The Bernoulli effect and the
associated Coanda effect are well-understood scientific phenomena.
They explain how the curved top surface of the wing displaces air
downward. Unless someone can come up with a better explanation for
the fact that wing stall destroys lift, I think the only debate is by
people who are determined to ignore the scientific evidence.
On Oct 8, 12:32 pm, Phil wrote:
On Oct 8, 11:46 am, Mxsmanic wrote:
There isn't any debate about what a wing stall is, and what causes
it. It has been well-explored in wind tunnel testing. The phenomenon
of wing stall is real-world evidence that the top surface of the wing
is a large contributor to lift. The Bernoulli effect and the
associated Coanda effect are well-understood scientific phenomena.
They explain how the curved top surface of the wing displaces air
downward. Unless someone can come up with a better explanation for
the fact that wing stall destroys lift, I think the only debate is by
people who are determined to ignore the scientific evidence.

What's wrong with the supposition that, all other things being equal,
the configuration of the fluid in a smooth stream results in less
pressure on the upper surface than the configuration of the fluid in
turbulence?

In other words, one could argue that the fluid above the wing, during
streaming (sorry for terminology), no longer exerts its full 14.7lbs/
in^2, but during a stall, even though there is still is some reduction
from the full 14.7lbs/in^2, the reduction is not as complete as it
would have been had there been a nice stream...

-Le Chaud Lapin-