摘要
采用低速风洞实验方法,研究了安装在超临界翼型上的微型涡流发生器四种高度和安装位置对绕该翼型的流动影响。对比干净翼型和安装微型涡流发生器的翼型升阻特性,结果表明：同向安装的微型涡流发生器能减小阻力,但对升力和失速迎角影响不大;大尺寸微型涡流发生器减阻没有小尺寸效果好;高度低于0.4δ（δ为边界层名义厚度）的微型涡流发生器最佳安装位置为参考分离位置下游3.5δ~4.5δ处。
This paper investigates the effect of Micro Vortex Generators（ MVGs） on the supercritical airfoil aerodynamics using the wind tunnel. The results indicated that when installed co- rotating MVGs,the drag coefficient was decreased,and the lift and stall angle of attack changed little. The drag decreased more when the size of MVGs was smaller. As the height of MVGs was below 0.4 δ（ δ is the velocity boundary-layer thickness）,the optimal location was about 3.5δ ～ 4.5δ downstream from the baseline separation point.
出处
《机械科学与技术》
CSCD
北大核心
2016年第9期1461-1465,共5页
Mechanical Science and Technology for Aerospace Engineering
关键词
微型涡流发生器
超临界翼型
升阻特性
失速迎角
micro vortex generator
airfoils
aerodynamics
drag coefficient
lift
angle of attack
