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随着经济的发展,飞行运动渐渐成为人们所喜爱的体育项目之一,低速二维机翼是轻型运动飞机产生升力的主要部件。二维机翼W-1是一款经典的轻型飞机机翼。二维缝翼S-1是一款根据仿生原理设计的增升装置,用来延迟在低雷诺数和大攻角条件下二维机翼W-1上表面的流动分离。通过一系列的风洞试验,来验证缝翼S-1对二维机翼W-1的边界层分离和升力的影响。试验结果表明:在低雷诺数条件下,缝翼S-1的使用对二维机翼W-1的边界层分离有明显的抑制作用,二维机翼W-1的失速攻角延迟了3.5°,最大升力系数增加了30.5%。
With the development of economy, the flight movement has gradually become one of the favorite sport items. The low-speed two-dimensional wing is the main part of the light sport aircraft that generates lift. The two-dimensional wing W-1 is a classic light aircraft wing. The two-dimensional slat S-1 is a bionic device designed to delay the flow separation on the upper surface of a two-dimensional wing W-1 at low Reynolds numbers and high angles of attack. Through a series of wind tunnel tests, the effect of slat S-1 on the boundary layer separation and lift of 2D W-1 was verified. The experimental results show that under low Reynolds number conditions, the use of slat S-1 significantly restrains the boundary layer separation of the two-dimensional wing W-1, and the stall attack angle of the two-dimensional wing W-1 is delayed by 3.5 °, the maximum lift coefficient increased by 30.5%.