| 前缘修形三角翼翼面背风区涡系研究 |
| |
| 引用本文： | 匡军,戴昌晖,汪子兴.前缘修形三角翼翼面背风区涡系研究[J].实验流体力学,1989(3). |
| |
| 作者姓名： | 匡军 戴昌晖 汪子兴 |
| |
| 作者单位： | 中国空气动力研究与发展中心
(匡军)，南京航空学院
(戴昌晖)，南京航空学院(汪子兴) |
| |
| 摘 要： | 本文对一组前缘修形三角翼翼面背风区流场进行了实验研究,给出了几种修形三角翼上翼面处空间涡系涡迹及表面流谱,研究了各涡之间的相互干扰。结果表明:使用前缘修形可以在一定程度上避免基本三角翼大迎角时产生的翼面主涡破碎;修形三角翼翼面背风区存在两条较为稳定的涡,两涡间有利干扰将改善翼面处流场。
|
| 关 键 词： | 前缘涡 空间涡 涡干扰 三角翼 |
A STUDY OF VORTEX SYSTEM OVER SOME MODIFIED LEADING-EDGE DELTA WINGS |
| |
| Kuang Jun.A STUDY OF VORTEX SYSTEM OVER SOME MODIFIED LEADING-EDGE DELTA WINGS[J].Experiments and Measur in Fluid Mechanics,1989(3). |
| |
| Authors: | Kuang Jun |
| |
| Institution: | Kuang Jun(China Aerodynamics Research and Development Center)Dai Changhui;Wang Zixing(Nanjing Aeronautical Institute) |
| |
| Abstract: | This experimental investigation was carried out on the flowfield over aseries of modified leading-edge delta wings.Spatial vortex tra-jectories over these wings and flow pattern on the surface of the wingswere given,and the interference among vortices was studied.The resultsshow that leading-edge modification can fairly avoid the occurance ofbreakdown of a primary vortex,which occurs over basic delta wing atsome large angles of attack.Two couple of stable vortices exist on leesideof a modified leading-edge delta wing.The favorable effect between vor-tices may improve the flow field nearby the surface of wings. |
| |
| Keywords: | leading-edge vortex spatial vortex interference of vortices delta wing |
| 本文献已被 CNKI 等数据库收录！ |
