实验流体力学2013，Vol.27Issue(4)：7-11,5.
可变正弦前缘对直机翼气动性能影响的研究
Effects of variable sinusoidal leading-edge on the aerodynamic performance of a straight wing
摘要
Abstract
Force measurements were carried out in a low speed wind tunnel to examine the aerodynamic performance of a straight wing installed with different wave-like variable sinusoidal leading-edges,which imitated the leading-edges of a humpback's flipper.The variable sinusoidal leading-edges were made of aluminum plate and placed in the slot which was assigned along the leading-edge of the wing.These variable leading edges can be extended and retracted according to different flying conditions.Results have shown that with the installation of variable sinusoidal leading-edges,"gradual stall" characteristic and lift enhancement after stall can be obtained; and the lift performance of the straight wing at high angle of attack is highly improved.The results also indicate that only when the extend length of the variable sinusoidal leading-edge is short,better aerodynamic performance for the straight wing can be achieved.关键词
可变正弦前缘/气动性能/缓失速特性/风洞实验/直机翼Key words
variable sinusoidal leading edge / aerodynamic performance/ gradual stall characteristic/wind tunnel test/straight wing分类
航空航天引用本文复制引用
潘翀,陈皇,王晋军..可变正弦前缘对直机翼气动性能影响的研究[J].实验流体力学,2013,27(4):7-11,5.基金项目
"唯实"青年基金(YWF-10-02-003) （YWF-10-02-003）
