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Old 10-21-2003 | 01:45 PM
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Ben Lanterman
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Default Double Vortex Generation
I found this photo in the November 2003 issue of RC Model World, a very nice English (United Kingdom type of English) produced magazine. It also has a columnists named Alasdair Sutherland who writes the Aerodynamic Forum, one of the better aero columns I have ever read (unfortunately one of the few also).

Anyway the photo shows a double helix vortex. The strength and separation of the flow near the tip is amazing.
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