Re: [ATM] Re: synthetic jets

[Dale Eason <atmpob@yahoo.com>]

If it was tuned to the 100 Hz they talk about you
would need a tube 4 ft long.  I know because I built a
pipe organ.  If it was closed on one end but not
usefull in this case it would only need to be 2 ft
long.

Dale Eason

--- James Lerch <jlerch1@tampabay.rr.com> wrote:
> ----- 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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> ATM mailing list http://www.atmlist.net/



	
		
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