Hi guys the leading edge spinners was fascinating The tuffy umbrella was very awesome to see that like a pinwheel action without spinning.other than that the umbrella WIND DAH CATOR looks great for getting a moon tan. YES Have a happy new year . I watched Peter Holdy fling the BGD Seed. crazy.
This interesting fenomen has been explored and experimented with wings and propellers that "never ends" and more precise in form of a figure eight (8) but in comercial jet and in real world they put winglets to minimice the problem whith vortex around the vingtips. Thanks for an interesting channel. Happy new year to everybody!
The fenomen occurs because you have a low pressure on top of wing and high pressure under the wing, and the high pressure leaks to the top of the wing where the wing ends, thats why you see the vortex go from beneath the wing to the top.
Just wanted to share this, so others could see what wingtip vortices look like. While they may change depending on wing design, size, speed, etc. They occur on all airfoils. ruclips.net/video/jUSsfhX-u8U/видео.html
If I had lived nearby, I can catch from the topside wing by my drone. Anyway, thank you always for helping me understand the theory. Thank you very much. Great idea. You genius^^
I would be very curious to see, in shifty winds, whether the tell-tails give a predictive indication of which way the wing is about to react. If, for instance, there is suddenly an angle change, a moment before the wing moves left, or right of center.
Downer on the wind, but great stuff! You also found a use for the seed! ;-) Interesting to see the wingtip vortex, would love to see that again in better conditions! Great work!
Interesting. I'd like to see some more of this if you keep the tufts on. Would be interesting to see more of what happens when reverse launching when the wing has such a large angle of attack that it must be stalled but is still able to launch.
Excelent idea. Laminar on the top was expected, but so much turbulence on wingtip is suprise. I thought that it is much more better optimised. It can be that it is only in seed because it is not intended to fly.
Actually the boundary on the wing is not laminar, but wery shortly after stagnation point it translates to turbulent flow bl. (The lines are just to hard to see what happens in that bl close to the wing, they only show general flow vectors over rhe wing)
sounds like a naughty school kid with a penchant for gossip !! :D :D :D I've also heard them referred to as flo viz, which is also the same name used on F1 cars with their flo viz paint
Superb!!! This time you surpass the mix of theory and pratics... awesome experiment... congrats
Wow. Great video guys. Thanks!
Watch out Andre, That Gemma's a STAR. You guys make a great team.
Awesome! Hope to see more videos with this setup.
Really man you r working hard u have that passion...I just got my license...love ur content
Hi guys the leading edge spinners was fascinating The tuffy umbrella was very awesome to see that like a pinwheel action without spinning.other than that the umbrella WIND DAH CATOR looks great for getting a moon tan. YES Have a happy new year . I watched Peter Holdy fling the BGD Seed. crazy.
Great idea!
If you ever do this again, maybe try showing what happens during a stall? Would be amazing to see the airflow decoupling from the wing :)
This interesting fenomen has been explored and experimented with wings and propellers that "never ends"
and more precise in form of a figure eight (8) but in comercial jet and in real world they put winglets to minimice the problem whith vortex around the vingtips.
Thanks for an interesting channel.
Happy new year to everybody!
The fenomen occurs because you have a low pressure on top of wing and high pressure under the wing, and the high pressure leaks to the top of the wing where the wing ends, thats why you see the vortex go from beneath the wing to the top.
It will be neat to see this when the wing is loaded. Happy New Year!
Umbrella wind indicator was a tricky idea...nice :D
Great video You guys!!! At the 4:31 mark, is that wing tip vortices causing that piece of yarn to move in a circular pattern?
Just wanted to share this, so others could see what wingtip vortices look like. While they may change depending on wing design, size, speed, etc. They occur on all airfoils.
ruclips.net/video/jUSsfhX-u8U/видео.html
yeah I think so! Such a cool video! thanks for sharing!
Cool stuff !
Air to air formation filming would be good ;)
smoke machine pumping smoke through a long pipe next ?
Almost 2019, happy new year to you both, look forward to more fun videos, cheers.
If I had lived nearby, I can catch from the topside wing by my drone.
Anyway, thank you always for helping me understand the theory.
Thank you very much.
Great idea. You genius^^
I would be very curious to see, in shifty winds, whether the tell-tails give a predictive indication of which way the wing is about to react. If, for instance, there is suddenly an angle change, a moment before the wing moves left, or right of center.
good idea, would be nice to try it
Downer on the wind, but great stuff! You also found a use for the seed! ;-)
Interesting to see the wingtip vortex, would love to see that again in better conditions! Great work!
Interesting. I'd like to see some more of this if you keep the tufts on. Would be interesting to see more of what happens when reverse launching when the wing has such a large angle of attack that it must be stalled but is still able to launch.
Excelent idea. Laminar on the top was expected, but so much turbulence on wingtip is suprise. I thought that it is much more better optimised. It can be that it is only in seed because it is not intended to fly.
I was just writing that! Very turbulent on the wingtip... maybe Advance is onto something with their 'winglets' :)
@@u0000-u2x wingtip vortices occur on every type of airfoil.
@@nickbraun2488 i know:)
Actually the boundary on the wing is not laminar, but wery shortly after stagnation point it translates to turbulent flow bl. (The lines are just to hard to see what happens in that bl close to the wing, they only show general flow vectors over rhe wing)
They are called "Tell Tales"
Thanks, I didn't know that
sounds like a naughty school kid with a penchant for gossip !! :D :D :D
I've also heard them referred to as flo viz, which is also the same name used on F1 cars with their flo viz paint
May be "Tell TAILS"??????
Maybe "Tell TAILS"
@@frederickruffell7910 ruclips.net/video/hnOO5Z0zOfs/видео.html
Please repeat this in flight and have it recorded from just above. Thanks!
Next time you can put a smoke source in front of the glider...
we thought about it but we didn't have time to make smoke bombs and the chemicals can be quite dangerous
A hairy glider :P