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REVIEW ARTICLES

Lift Force of Delta Wings

[+] Author and Article Information
Mario Lee, Chih-Ming Ho

Department of Aerospace Engineering, University of Southern California, Los Angeles, California 90089-1191

Appl. Mech. Rev 43(9), 209-221 (Sep 01, 1990) (13 pages) doi:10.1115/1.3119169 History: Online April 30, 2009

Abstract

On a delta wing, the separation vorticies can be stationary due to the balance of the vorticity surface flux and the axial convection along the swept leading edge. These stationary vortices keep the wing from losing lift. A highly swept delta wing reaches the maximum lift at an angle of attack of about 40°, which is more than twice as high as that of a two-dimensional airfoil. In this paper, the experimental results of lift forces for delta wings are reviewed from the perspective of fundamental vorticity balance. The effects of different operational and geometrical parameters on the performance of delta wings are surveyed.

Copyright © 1990 by American Society of Mechanical Engineers
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