摘要
涡流发生器是一种简易的被动流动控制技术,其对延迟流体边界层的分离,提高飞机的起降性能有潜在的收益。通过民用运输机模型风洞试验,采用烟流、荧光丝线和PIV粒子图像测速等流动显示技术,研究矩形涡流发生器(安装在机翼内翼前缘附近)对民用运输机低速特性的影响。结果表明:烟流试验和荧光丝线试验定性地捕获了矩形涡流发生器能够改善机翼内翼下游区域的分离的结论,PIV粒子图像测速试验,定量地获得了在机翼内翼下游的指定站位处,使用矩形涡流发生器后,能迫使分离区的分离流再次成为翼面附着流动的图谱。综合试验结果,矩形涡流发生器对民用飞机的低速特性有明显的改善作用。
The vortex generator is a simple passive flow control technology that has potential positive benefits for delaying the separation of the fluid boundary layer and improving the take-off and landing performance of the aircraft.Through wind tunnel tests on a civil transport aircraft model,flow display technologies such as smoke visualization,fluorescent tuft,and PIV particle image velocimetry are used to study the effect of a rectangular vortex generator(installed near the leading edge of the inner wing)on the low-speed characteristics of the civil transport aircraft.The results show that,through smoke flow experiments and fluorescent tuft experiments,the conclusion that rectangular vortex generators can improve the separation of the inner wing downstream area of the wing is qualitatively captured.Through the PIV particle image velocimetry experiment,a pattern of the use of a rectangular vortex generator at a designated station downstream of the inner wing of the wing is quantitatively obtained,which can force the separation flow in the separation area to become an airfoil-attached flow again.Based on the test results,the rectangular vortex generator can significantly improve the low-speed characteristics of civil aircraft.
作者
颜巍
徐辉雯
王祁旻
陈梦颖
张美红
赵克良
焦仁山
牛中国
王飞
曾维平
YAN Wei;XU Huiwen;WANG Qimin;CHEN Mengying;ZHANG Meihong;ZHAO Keliang;JIAO Renshan;NIU Zhongguo;WANG Fei;ZENG Weiping(Shanghai Aircraft Design&Research Institute,Commercial Aircraft Corporation of China,Ltd.,Shanghai 201210,China;Aerodynamics Institute,Aviation Industry Corporation of China,Ltd.,Harbin 150001,China;Low Speed Wind Tunnel Test Institute,China Aerodynamics Research&Development Center,Mianyang 621000,China)
出处
《航空工程进展》
2025年第4期82-92,共11页
Advances in Aeronautical Science and Engineering
基金
国家重点研发计划(SQ2020YFA070089)。
关键词
低速风洞
涡流发生器
流动显示技术
烟流
荧光丝线
粒子图像测速
low speed wind tunnel
vortex generator
flow visualization technology
smoke visualization
fluorescent tuft
particle image velocimetry
