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help identify name of air current motion  RSS feed

 
Posts: 258
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Awkward question as I want to identify a motion that I know has been tested for being more  efficient for producing motion from wind energy by a researcher here locally some years back.

It is what i would describe as a butterfly motion.  All I can describe is there is an undulating rhythm your hand makes flipping back and forth in a figure eight when you hold it nonrigidly outside against the air current as you drive.

Can anyone identify the name of that motion so I can google it and see where the research may have lead to in respect to capturing wind energy ? I never see anything on it but knew someone was researching it about 20 years ago near the Oceans Sciences Institute near Saanich, BC
 
                
Posts: 44
Location: West Coast of Canada
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Flapping?
 
                                
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Oscillation.
 
pollinator
Posts: 240
Location: Northern New Mexico, Zone 5b
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vortex or turbulence?
 
Posts: 631
Location: NW MO
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The trouble with this is that it has to be placed at the exact right angle to the wind. The wind is constantly changing.
 
Posts: 484
Location: Englehart, Ontario, Canada
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It's called figure 8 tracking and is seen in high altitude kite electrical generation. See sites such as

http://www.makanipower.com/

for real world development.
 
Lisa Paulson
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Thank you  mekennedy1313   
Now I will be sleuthing to see if any paddle type applications ever developed into anything workable. 

I am  looking for small efficient micro wind for energy. 
 
pollinator
Posts: 367
Location: East Central GA, Ultisol, Zone 8, Humid
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I see that this is old, but I think what you're referring to is a Kármán vortex street.
 
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