北京航空航天大学学报 ›› 2002, Vol. 28 ›› Issue (1): 1-3.

• 论文 •    下一篇

粗糙带对某型号飞机简化模型机头流态的影响

王晋军, 薛启智, 王海文, 李岩   

  1. 北京航空航天大学 飞行器设计与应用力学系
  • 收稿日期:2000-04-26 出版日期:2002-01-31 发布日期:2010-11-19
  • 作者简介:王晋军(1963-),男,山西寿阳人,教授,100083,北京.
  • 基金资助:

    国家部委基金资助项目

Effects of Roughness Ribs on Flow Patterns of Simplified Aircraft Model

WANG Jin-jun, XUE Qi-zhi, WANG Hai-wen, LI Yan   

  1. Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics
  • Received:2000-04-26 Online:2002-01-31 Published:2010-11-19

摘要: 在水洞中应用染色液流动显示技术对某型号飞机简化模型机头流态进行了研究,详细观察了机头两侧粗糙带和"只"字型粗糙带对机头流态的影响.实验结果表明,风洞实验所得力矩曲线受雷诺数影响大的攻角范围与机头涡破裂后打在座舱上的攻角及机头涡在座舱前严重掺混的攻角相联系.水洞实验中,来流速度为20cm/s、粗糙高度为0.8mm时流态随攻角的变化规律可用来解释风洞实验结果中力矩曲线的分散性.

Abstract: The dye-injection flow visualization technique has been used to study the flow patterns of a simplified aircraft model, the effects of side roughness ribs and "O" type with side roughness ribs on the flow patterns have been observed in details. The experimental results indicated that the range of the angle of attack influenced by the Reynolds number in the pitching moment curves is related to the angle of attack at which the nose vortex begins to beat the canopy until it mixes in the front of the canopy. In this water tunnel experiments, the results obtained at 20cm/s for the roughness height 0.8mm can be used to explained the scatter of the pitching moment curves obtained in the wind tunnel measurements.

中图分类号: 


版权所有 © 《北京航空航天大学学报》编辑部
通讯地址:北京市海淀区学院路37号 北京航空航天大学学报编辑部 邮编:100191 E-mail:jbuaa@buaa.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发