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12.8: Display Free Vortices (wake turbulence)

Every wing has outgoing free vortices at the trailing edge. They are part of horseshoe vortices and continue in the infinite.
To avoid chaotic lines in the 3D-graphic, only a part of the wake turbulence is displayed. The length of wake turbulence is adjustable; this issue is covered by chapter 'Design Computation'.

The marked button is in charge to make the wake turbulence visible / invisible.



The following picture shows a wing with flap in left segment. You can see plain wake turbulence, as used in most Vortex-Lattice programs. The visible part of wake turbulence is limited to 1 meter.




If one calculates the design with iteration for wake turbulence, one can see not only tip vortices, but also vortices at the flap edges. These vortices are the reason for less lift at wing tips and for induced drag.



The following pictures illustrate where to take vortices into account. Believe it or not, even a ring wing produces a nice little wake turbulence.











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