北京航空航天大学学报 ›› 2005, Vol. 31 ›› Issue (06): 599-603.

• 论文 • 上一篇    下一篇

不同头部形状单孔位微吹气扰动控制实验研究

孙淑园, 邓学蓥, 詹慧玲   

  1. 北京航空航天大学 航空科学与工程学院, 北京 100083
  • 收稿日期:2004-01-12 出版日期:2005-06-30 发布日期:2010-09-21
  • 作者简介:孙淑园(1976-),男,陕西西安人,硕士生,sysun cn@hotmail.com.
  • 基金资助:

    国家自然科学基金资助项目(10172017);航空科学基金资助项目(02A51048);武器装备预研基金资助项目(51413020103HK0167)

Study of flow control over different noses with single hole microblowing

Sun Shuyuan, Deng Xueying, Zhan Huiling   

  1. School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2004-01-12 Online:2005-06-30 Published:2010-09-21

摘要: 在亚临界流动范围内,对具有不同头部形状的尖拱形细长旋成体在无侧滑大迎角下进行单孔位微吹气扰动控制实验.通过对物面压力分布、截面侧向力分布和以前细长旋成体结果的对比和分析,发现单孔位微吹气扰动对于细长旋成体横侧向控制作用在于模型头部背风侧非对称二涡结构对扰动的敏感性.实验分析表明,单孔位微吹气扰动这一大迎角非对称控制手段具有较强的适应能力,其控制能力的大小则由该头部形状的初始状态决定.

Abstract: The SHM(single hole microblowing) as a new perturbation active control technique has been applied to the slender body with different model noses at zero sideslip and high angle of attack. The analyzed and contrasted results of the distribution of the surface pressure distributions and the sectional side forces with the former results of the slender body in the same flow conditions show that the SHM’s control effect to the slender body is due to that the two asymmetric vortices over the slender body model are sensitive to the nose perturbations. The analyses indicate that the SHM’s control ability has strong adaptability to various slender body at high angles of attack, and its control ability is determined by the original state of the flowfield around the slender body.

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