襟翼缝道对多段翼型气动特性影响的实验研究  

Investigation of effect of flap gap on multi-element airfoil aerodynamical characters

作　　者：周瑞兴[1] 高永卫[1] 肖春生[1] 上官云信[1] 郗忠祥[1] 

机构地区：[1]西北工业大学国防科技重点实验室,陕西西安710072

出　　处：《流体力学实验与测量》2002年第4期7-12,共6页Experiments and Measurements in Fluid Mechanics

基　　金：国防科技重点实验室基金(编号98JS51.1.1ZSS101)

摘　　要：对具有襟翼不同缝道构形的多段翼型进行了翼面边界层、表面压力、尾迹速度的测量,同时作了翼面流谱观察实验。实验结果表明,襟翼缝道的不同构形对多段翼型的流动特性、增升效果和升阻特性有着强烈的影响,该研究中具有最佳优化缝道的多段翼型的最大升力系数可达3.360,它为普通缝道多段翼型对应迎角下升力系数的115％。Boundary-layer, surface pressure, wake velocity measurements and flow visualization are tested for different configurations of multi-element airfoil. The experimental results indicate that the effects of different flap gap configurations on multi-element airfoil flow characters, lift augmentation effect and lift-drag characters are very strong.This investigations show that lift coefficient of multi-element with optimum flap gap is 3 .360, which is 115% of conventional flap gap multi-element airfoil at the same angle-of-attack.

关 键 词：襟翼 缝道 翼型 气动特性 影响 实验研究 压力测量 飞机 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]