An airfoil that will never stall, no matter the angle of attack
propulsivewing.com
An airfoil that will never stall, no matter the angle of attack
1–10 of 21 posts
Re: An airfoil that will never stall, no matter the angle of attack
#2The title is a bit sensationalist - An airfoil that will never stall, no matter the angle of attack. They did CFD simulations that shows their wing not stalling at extreme angles of attack (not at any angle).
Also, they are talking about a wing. An airfoil is a wing section not the actual wing.
Re: An airfoil that will never stall, no matter the angle of attack
#3This reminds me of the Boeing YC14 blown wing (1). It looks a little like a fully structure-contained implementation of that concept.
Re: An airfoil that will never stall, no matter the angle of attack
#4Not entirely correct as turning it over 90 degrees does not apear to work.
Re: An airfoil that will never stall, no matter the angle of attack
#5There is a difference between stalling due to high angles of attack, and having too much drag from cross-sectional resistance on an unstalled wing to be able to lift. The practical outcome is the same however, not enough lift to overcome the weight.
Re: An airfoil that will never stall, no matter the angle of attack
#6Rather than kill the site (as the video is a downloadable 27mb file), I've uploaded it to youtube https://www.youtube.com/watch?v=frgCQVGOdgs&feature=youtu.be
I'll delete it in a couple of days once this drops off HN.
Re: An airfoil that will never stall, no matter the angle of attack
#7I'm reminded of some of the other attempts to utilize the Magnus effect:
https://www.youtube.com/watch?v=kgOAwzG9Fd0
https://www.youtube.com/watch?v=_BDCcSR1pJ4&list=PLB851DC7DF...
https://www.youtube.com/watch?v=acXvl-8xrBM
Very interesting flight mechanics are possible when designers try to utilize this effect, and its exciting to see this little-known technology come to the forefront as more and more folks enter the 'drone-fleets are the new network' age ..
Re: An airfoil that will never stall, no matter the angle of attack
#8Cool, is fairly similar to the fanwing configuration. http://www.fanwing.com/
Re: An airfoil that will never stall, no matter the angle of attack
#9The title is a bit sensationalist - An airfoil that will never stall, no matter the angle of attack . They did CFD simulations that shows their wing not stalling at extreme angles of attack (not at any angle). Also, they are talking about a wing . An airfoil is a wing section not the actual wing.
An airfoil describes the stall characteristics of the wing.
Camber, chord, edges, angle of attack .. these are all described by the airfoil and are key to flight control, including stall handling. How an airfoil gets itself out of the stall state is of great interest to designers.
Airfoils which utilize the Magnus effect (as in this case) do have different stall characteristics. Its not incorrect to refer to the airfoil in that context.. a bit like calling a soccer ball not just a sphere but also a wing, too, which in fact it is to most airfoil designers .. ;)
Re: An airfoil that will never stall, no matter the angle of attack
#10[deleted]