Process and device for accelerating the destruction of at least two vortices in the wake of a moving body, particularly an aircraft
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United States of America Patent
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Apr 13, 2004
Grant Date -
Sep 5, 2002
app pub date -
Feb 25, 2002
filing date -
Mar 1, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for accelerating the destruction of contra-rotating vortices formed at the rear of wings of a moving body by the merging of at least two co-rotating eddies includes, on each of the wings, at least one perturbator which is positioned in the vicinity of the area of creation of one of the co-rotating eddies associated with the wing. Each of the perturbators generates a periodic perturbation of the flow, which has a wavelength capable of exciting at least one of the instability modes of the corresponding eddy in such a way as to increase the core of the contra-rotating vortex which is created from this eddy, in such a way that the diameter of the core becomes greater than a predetermined proportion of the inter-vortex distance.
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