Re: [ATM] Re: synthetic jets

["James Lerch" <jlerch1@tampabay.rr.com>]

----- Original Message ----- 
From: "Michael Warne" <mwarne@network2000-hi.com>

>It doesn't mention the use of one-way air valves, so the air might
>simply move in and then out agin.

>Mike.

Looks to me like its a tiny, multipoint vortex ring generator. (aka smoke ring
machine, minus the smoke).  In their application, it appears they have probably
tuned their "speaker box and ports" to resonate at the desired frequency.

Interesting that this actually improves the performance of standard heat sinks
vs cooling with a fan.  It would also be interesting to see if this could be
implemented to more rapidly cool optics.

Cool.. :)

Take Care,
James Lerch
http://lerch.no-ip.com/atm (My telescope construction,testing, and coating site)

"Anything that can happen, will happen" -Stephen Pollock from:
"Particle Physics for Non-Physicists: A Tour of the Microcosmos"

" Press on: nothing in the world can take the place of perseverance.
Talent will not; nothing is more common than unsuccessful men with talent.
Genius will not; unrewarded genius is almost a proverb.
Education will not; the world is full of educated derelicts.
Persistence and determination alone are omnipotent. "
                                                           Calvin Coolidge


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