Wingtip extension for reducing wake vortices of aircraft

摘要

The invention relates to a wingtip extension comprising a leading edge and a trailing edge, which wingtip extension is affixable to an outer end of a wing, wherein the leading edge, at least in some sections, is essentially straight, and the straight section of the leading edge comprises a leading-edge sweep angle that exceeds the leading-edge sweep angle of the wing, and the local depth of the wingtip extension gradually decreases between a connecting region for connection to the wing and the outer end of the wingtip extension. By means of a wingtip extension according to the invention, in a delta wing a vortex burst region is positioned just behind the wingtip, as a result of which vortex burst region the cores of wingtip vortices burst and eventually become unstable, so that as a result of this the wake vortices of the aircraft can be reduced. The invention furthermore relates to a wing, comprising wingtip extensions according to the invention, as well as to an aircraft comprising such a wing.

主权项

1. A wingtip extension for a wing of an aircraft for reducing of wake vortices, comprising:
a leading edge at least partially being substantially straight; and a trailing edge configured to be affixable to a connection region of the wing; wherein a straight section of the leading edge comprises a leading-edge sweep angle exceeding the leading-edge sweep angle of the wing; wherein a local depth of the wingtip extension corresponds to a local depth of the wing in the connection region; wherein a local depth of the wingtip extension gradually decreases between a connecting region for connection to the wing and the opposite end of the wingtip extension wherein the wingtip is configured such that a wingtip vortex arising from the wingtip is influenced by a bursting vortex core such that the wingtip vortex starts to decay; and wherein a cross-sectional profile of the wingtip extension is substantially flat or at least at the leading edge is tapered to a point.