摘要
在１米低速风洞中，对半展长直机翼翼尖用围空间流场进行了详细地研究，并分析了翼尖帆片的增升减阻机理。根据理论计算并结合试验结果设计的翼尖机片，经大低速风洞全机模型试验证明：翼尖装三个机片可使全机诱导阻力因子减小２１．４９％。这可供帆片设计时参考。
An experimental investigation has been conducted in a 1m wind tunnel to the local flow field around the tip of a rectangular half span wing.This paper gives ayailable results for design of wing tip devices and analyzes the principle of increasing lift and reducing drag for sails.Wind tunnel tests show three sails designed by combined the numerical calculation with results presented in this paper can reduce the induced drag factor by 21. 49 percent.Sails designed in this paper are successful and can be used for reference to sails design.
关键词
流场测量
翼尖帆片
风洞
翼尖
measurement of flow field sails of wing tip induced drag factor wind tunnel
