4 ms·

So... we're ditching Coanda and going back to Circulation Vortex? A question I always had about the circulation vortex: where's the energy input to power the

• camperman 16y ago
  It's the aircraft's throttle normally. Or if it's a glider, then the winch or another aircraft's throttle if you're getting towed. To be less facetious, the energy input is the moving airfoil at a particular angle of attack. http://www.av8n.com/how/htm/airfoils.html#sec-airfoils-summary http://www.av8n.com/how/htm/airfoils.html#sec-airfoils-summa...
  • divtxt 16y ago
    So circulation forms and self-sustains naturally when you push the airfoil through the air. From the article, it looks like this is because the air behavior is asymmetric between the leading and trailing edges, in favor of maintaining circulation. My question: why/how does the air do this? For example, I thought the Coanda effect was the macro result of van der Waals attraction. Is there a similar explanation for the behavior of air which results in asymmetric leading & trailing edge behavior?
    • camperman 16y ago
      Because it's a fluid that has pressure and velocity everywhere, like all fluids. I don't know how you would describe circulation in terms of a macro result of some other effect.