一种带坑机翼

Wing with pits

Abstract

The invention belongs to the technical field of aircrafts, and particularly relates to a wing with pits. The wing comprises a front edge, an upper surface, a lower surface, a rear edge and a wing body. The front edge is thick and round, the upper surface is an upwards-protruding curved surface, the lower surface of a plane or a curved surface which slightly protrudes downwards or a curved surface which is slightly concaved upwards, the identical small pits are evenly distributed in all the area, from the thickest portion of the wing to the rear edge, of the upper surface in the wing chord direction, the average depth of the small pits is about 0.25 mm, the largest boundary dimension of the small pits is between 1 mm and 10 mm, and the clear distance between every two adjacent small pits is between 1 mm and 3 mm. The largest lift-drag ratio of the wing is large, the range of the effective angle of incidence is large, and the wing is not prone to stalling, high in efficiency and high in strength.
一种带坑机翼,属飞行器技术领域,尤其涉及一种机翼。它包括前缘、上表面、下表面、后缘和翼体。前缘厚实浑圆,上表面为向上凸起的曲面,下表面为平面或稍向下凸的曲面或稍向上凹的曲面,上表面沿翼弦方向自机翼最厚处往后缘的全部区域均匀分布着数个相同的小凹坑,每个小凹坑的平均深度约为0.25mm,小凹坑的最大外形尺寸在1mm至10mm之间;每两个相邻的小凹坑之间的净距离在1mm至3mm之间。该机翼的最大升阻比较大,有效迎角范围大,且不易失速,效率高,强度强。

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Cited By (1)

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