If I'm not wrong, it seems dead simple when you put it like this:
- Imagine the jet moves the wing forwards some small distance in some small amount of time.
- Due to the shape of the wing, there is now a temporary vacuum above the wing as air particles have yet to rush in and occupy the space where the wing used to be.
- There is now an unbalanced pressure around the wing sufficient to overcome gravity and give lift.
No Bernoulli, no math, just visualizing a bunch of particles getting pushed around.
If you think about air this way it also becomes obvious why a helium balloon moves in the direction of acceleration inside a car. Car moves forward, air in the rear of the cabin is now squished while the air in front is stretched out as it hasn't caught up to the car yet, pressure gradient sends the balloon forwards.
As a purely conceptual illustration of the fact that the air must be deflected downwards by the wing, sure. It doesn't really work, though. For example, there's no reason for the air to move faster over the top of the wing in your scenario, and without that you'd underestimate the amount of lift a wing actually generates.
> there's no reason for the air to move faster over the top of the wing in your scenario
I suppose the compressed air at the top of the wing will find its way into a vacuum and travel a bit faster than the air at the bottom that's encountering normal pressure, but I'm honestly out of my depth at this point. Not sure if the air coming in on the left cancels that out either, I'd have to run the equations. https://webwhiteboard.com/board/KhTCsoDvhyGTy0uJtmPpQNhvldF1...
- Imagine the jet moves the wing forwards some small distance in some small amount of time.
- Due to the shape of the wing, there is now a temporary vacuum above the wing as air particles have yet to rush in and occupy the space where the wing used to be.
- There is now an unbalanced pressure around the wing sufficient to overcome gravity and give lift.
No Bernoulli, no math, just visualizing a bunch of particles getting pushed around.
If you think about air this way it also becomes obvious why a helium balloon moves in the direction of acceleration inside a car. Car moves forward, air in the rear of the cabin is now squished while the air in front is stretched out as it hasn't caught up to the car yet, pressure gradient sends the balloon forwards.