03.4 - Applied Aerodynamics
STATIC GROUND EFFECT OF HIGH-ASPECT-RATIO WINGS
C. Zheng¹, Q. Qu¹, P. Liu¹, T. Hu¹; ¹Beihang University, China
Research on typical high-aspect-ratio wings has mainly focused on the behavior of wingtip vortices, analytical rnor numerical aerodynamic prediction, and various specific configurations, without systematic investigation or rnthe establishment of a unified understanding. In this paper, numerical studies are carried out on simple highrnaspect-ratio rectangular wings and swept wings, and the main findings are as follows: 1. A two-dimensional rnflow region exists in the mid-span of the wing, and its flow behavior is completely consistent with that of a tworndimensional airfoil at the same flight height; this also applies to swept wings. 2. The wingtip flow behavior of rnwings with different aspect ratios is consistent, and the physical length of its influence range is fixed.