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01-15-2008, 03:42 AM
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#1 |
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High Desert Hucker
 
Join Date: Jan 2006
Location: Hesperia, CA
Posts: 85
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zig zag turbulator tape
Anyone here have experience using zig zag turbulator tape on GS Aerbatic airplanes to improve high alpha flight characteristics? If so.... what is your prefered placement?
__________________
If you're not living on the EDGE, then you are taking up too much space. |
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01-15-2008, 11:46 AM
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#2 |
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.
 Join Date: Jan 2006
Posts: 4,100
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Re: zig zag turbulator tape
Are we talking about the white or black T-Tape? Big difference between the two.
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01-15-2008, 03:09 PM
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#3 |
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www.engsoc.org/~thastie
Join Date: Jan 2006
Location: Ottawa, Ontario, Canada
Age: 31
Posts: 225
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Re: zig zag turbulator tape
I think he means the zigzag tape shown on this page:
http://www.wingsandwheels.com/page29.htm My guess is that the effect the tape has on full scale aircraft wouldn't scale down well for our models. But it might be worth some experimentation. |
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01-15-2008, 05:00 PM
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#4 |
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Bad-ass Super Contributer!
Join Date: Jan 2006
Location: High Desert California, USA
Age: 50
Posts: 5,690
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Re: zig zag turbulator tape
It scales down fine as long as we are clear on what we expect it to do... mainly, create vorticity in the boundary layer that pulls higher energy air agains the surface... with a drag penalty.
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01-15-2008, 08:04 PM
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#5 |
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Flyin' Around
 Join Date: Mar 2007
Location: Dayton, OH
Posts: 2
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Re: zig zag turbulator tape
So now the question is where to place it, my thoughts would be to place it just ahead of the flow separation point. This would allow a higher alpha before flow separation and might increase the possibility of boundary layer reattachment. To my knowledge there is no exact location for the placement of these devices, you'll have to find someone who has done this before or just by a bunch and try several different locations.
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01-31-2008, 09:57 PM
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#6 |
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100LL User
Join Date: Sep 2006
Location: Ft Myers Florida
Posts: 4,296
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Re: zig zag turbulator tape
Drag is not much of an issue with what we are doing. Go ahead and experiment. Place some tape at the highpoint,,or put at just ahead of the hinge line.
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05-09-2008, 10:32 AM
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#7 |
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Put me in Coach!
Join Date: Mar 2006
Location: Oceanside, CA
Posts: 292
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Re: zig zag turbulator tape
We have used these in gliders and pylon ships to control separation in hard turns. Placement is a tough thing to figure out but I think you have the basics to experiment.
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