Wake Turbulence Test

At school we tested wake turbulences behind wings.
This is a short clip of how we made them visible.

Category:

Autos & Vehicles

Tags:

• wake
• turbulence
• test
• school
• wings
• aircraft

[ricardolemke88]

i'm german so sorry for faults

there is low pressure above and high pressure below the wing, so the air tries to ballance the pressure and streams from below to above at the end of the wing. this ends in a rotating movement and continues behind the flying wing

i hope i could help :-)

[FrekeOne]

Winglets works!

[GertjanvandenBosch]

@eyeammi Adding wingtips, wingplates or even wingtakns does not stop the vortices, the're are always there when an aerofoil produces lift. Yes, they will reduce some amount of vortices, but not all of it. By reducing the vortices, you reduce your induces drag, only adding wingtips increases parasite drag. And there is always a pressure differential due to the pressure differential of the aerosol where you add the wingtips to.

[miikkuke22]

ok but how about one rope on the winglet? how would it perform on the tip?

[Beamernator]

@eyeammi They will also create thrust.

[eyeammi]

That's not turbulence. They're vortices caused by pressure differentials (lift generation). The high pressure flows around the tip to the low pressure side & rotates into a vortex. (same thing with the aileron). That's why adding the outboard tips stops it. It prevents flow from the underside of the wing from wrapping to the top side at the wing tip. If the winglets are made out of a symmetric airfoil profile, they will not produce a pressure differential & thus not create their own vortices.

[175Air]

@777LRtraveler That is untrue! It happens before the nose gear lifts off and after it touches down! Around 60-80kts or something like that.

[jesuistahmid]

can you do the same for raked wing tips ;)

also i have never seen the 3rd design you used on aircrafts... the closest are the airbus a300/10/20 and its much smaller.

[straighttailpilot]

Yeah but what about the tip of the wingtip? how much vortex does it create or does it dissipate it? what is the calculation to know the dimension of the splate?

[Helicopterpilot16]

I do have one question, How did you construct your wing models?

[Helicopterpilot16]

@ricardolemke88 Thats is the same answer I would give, Auf Wiedersehn!

[DrPashupathy]

Nice experiment