空气动力学学报Issue(3)：302-306,5.DOI:10.7638/kqdlxxb-2015.0045
翼身相对厚度对小展弦比飞翼布局跨声速气动特性及流动机理的影响研究
Wing-body thickness effects on aerodynamic and vortex flow characteristics of common low-aspect-raio flying-wing configuration at transonic flow
李永红 1黄勇 2王义庆 3苏继川 3钟世东3
作者信息
- 1. 中国空气动力研究与发展中心 空气动力学国家重点实验室，四川 绵阳 621000
- 2. 中国空气动力研究与发展中心 高速空气动力研究所，四川 绵阳 621000
- 3. 中国空气动力研究与发展中心 高速空气动力研究所，四川 绵阳 621000
- 折叠
摘要
Abstract
Various studies have been conducted on the aerodynamic and vortex flow charac-teristics of 65°swept delta wing or flying-wing configurations with relatively small thickness ratio of the inner wing/body part by both experimental and numerical methods.However,in transonic flow field,wing-body thickness has great influence on the introduce of shock and shock/vortex interactions which can make a significant difference to the vortex breakdown behavior and aerody-namic characteristic of the flying-wing configuration.Based on the experimental data of a low-as-pect-ratio common research model with a 65°swept flying-wing configuration and a 0.16 wing-body thickness ratio,through reducing the wing-body thickness while keeping the round leading edge and outer wing geometry identical,wing-body thickness effects on the aerodynamic and vor-tex flow characteristics of the flying-wing configuration in transonic flow field have been studied numerically methods.The investigation indicated that wing-body thickness ratio reduced model has a gentle change in vertex strength along chord-wise direction and the vortex strength is high-er than that of the original model before x/Cr =0.25,meanwhile it can delay vortex breakdown by an angle of 8°compared with the original model at Mach number 0.9.关键词
飞翼布局/翼身相对厚度/前缘涡/涡破裂/轴向速度Key words
flying-wing configuration/wing-body thickness/leading-edge vortex/vortex breakdown/axial velocity分类
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李永红,黄勇,王义庆,苏继川,钟世东..翼身相对厚度对小展弦比飞翼布局跨声速气动特性及流动机理的影响研究[J].空气动力学学报,2015,(3):302-306,5.
