Soundwaves Boost Wing Lift

There is one other significant fact not mentioned. Turbulent drag,
basically a fluid flow is highly unstable. There is the classical
statement of the butterfly in Japan causing a hurricane in the Gulf.

This represents the control of chaos. Stalling represents the complete
breakdown of laminar flow. So it will not only improve stall
performance, it will (potentially) reduce fuel consumption. Turbulent
drag is caused by vorices in an unstable fluid flow. Fewer vortices =
more kilometers, fewer liters.

Makes one wonder what the technique could do for prop performance. Any
thoughts?
" wrote in message
ups.com...
Here's some news that recently came out:

http://www.newscientist.com/article.ns?id=dn7867

http://abc.net.au/science/news/stories/s1439827.htm

Apparently, soundwaves can help airflow stay near the wing and increase
lift. This can help smaller aircraft to avoid stalling at lower
airspeeds. Is this a technology that could be usefully applied to
existing small aircraft? Or would it require some totally new design
thinking?

In article ,
"Jim Rodgers" wrote:

Makes one wonder what the technique could do for prop performance. Any
thoughts?
" wrote in message
ups.com...
Here's some news that recently came out:

http://www.newscientist.com/article.ns?id=dn7867

http://abc.net.au/science/news/stories/s1439827.htm

Apparently, soundwaves can help airflow stay near the wing and increase
lift. This can help smaller aircraft to avoid stalling at lower
airspeeds. Is this a technology that could be usefully applied to
existing small aircraft? Or would it require some totally new design
thinking?



It would be really difficult to mount the equipment inside a prop's
blades!

I don't see why not. Chips have been fired out of guns. Shells are now
intelligent. The chips would go into the hub and there would be a
printed circuit on the prop. No I don't see anything impossible.

Why not add a canard to all small A/C?

" wrote in message
ups.com...
Here's some news that recently came out:

http://www.newscientist.com/article.ns?id=dn7867

http://abc.net.au/science/news/stories/s1439827.htm

Apparently, soundwaves can help airflow stay near the wing and increase
lift. This can help smaller aircraft to avoid stalling at lower
airspeeds. Is this a technology that could be usefully applied to
existing small aircraft? Or would it require some totally new design
thinking?

Consider a propeller.
Transmission of vibration from the engine mechanicals and torque pulses
must produce tremendous vibrations in every propeller. These vibrations
must produce similar effects as these soundwaves. Maybe this is why
propeller blades seem to be able to tolerate higher angle of attack
before stalling than wings.