A Brief Survey of Wing Tip Devices for Drag Reduction

Paper #:
  • 932574

Published:
  • 1993-09-01
Citation:
Rokhsaz, K., "A Brief Survey of Wing Tip Devices for Drag Reduction," SAE Technical Paper 932574, 1993, https://doi.org/10.4271/932574.
Author(s):
Pages:
12
Abstract:
A short survey of wing tip geometries for drag reduction is presented. These devices have been divided into two broad categories of passive and active. The first category is made of fixed geometries, while the second group is made of those employing moving parts. The former group is further divided into planar and nonplanar designs. In every case, a brief explanation of the underlying logic is given. Altogether, more than fifteen completely different designs and over seventy references have been cited. Some of these designs, such as winglets, have been explored for many years and have proven to be very effective at reducing the induced drag at higher values of lift coefficient. Some others, such as wing tip turbines, have just begun to attract attention. Wing tip fuel tanks, not being solely employed for drag reduction, have not been included in this paper.
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