3 Boundary Layer Control
One scheme2 for controlling separation involves the use of vortex generators. Those are the little blades you see on the top of some wings, sticking up into the airstream at funny angles.
They are placed at an angle of attack and (like a wing airfoil section) generate vortices. These tend to prevent or delay the breakaway of the boundary layer by re-energizing it. They are lighter and simpler than the suction boundary layer control ...
of the trailing edge devices used to increase lift without too much penalty in drag, moment and/or building complication. In this third part, we will try to get a better understanding of the leading edge high lift devices, boundary layer control and ...
 See also: Boundary layer, Power, Drag, Wing, Speed
  
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