航空学报 > 2015, Vol. 36 Issue (1): 7-23   doi: 10.7527/S1000-6893.2014.0224

高超声速飞行的若干气动问题

余平, 段毅, 尘军   

  1. 空间物理重点实验室, 北京 100076
  • 收稿日期:2014-07-25 修回日期:2014-10-17 出版日期:2015-01-15 发布日期:2014-10-20
  • 通讯作者: 余平,Tel.: 010-68198491 E-mail: yupingbj@vip.sina.com E-mail:yupingbj@vip.sina.com
  • 作者简介:余平 男,硕士,研究员。主要研究方向:空气动力学。 Tel: 010-68198491 E-mail: yupingbj@vip.sina.com;段毅 男,博士,研究员。主要研究方向:空气动力学,计算流体力学;尘军 男,博士,研究员。主要研究方向:飞行器总体、动力设计。
  • 基金资助:

    国家自然科学基金 (11372036)

Some aerodynamic issues in hypersonic flight

YU Ping, DUAN Yi, CHEN Jun   

  1. Science and Technology on Space Physics Laboratory, Beijing 100076, China
  • Received:2014-07-25 Revised:2014-10-17 Online:2015-01-15 Published:2014-10-20
  • Supported by:

    National Natural Science Foundation of China(11372036)

摘要:

转捩、层流流动分离和气动误差带是高超声速飞行需要关注的几个气动问题。转捩与层流流动分离会对飞行器的气动特性产生显著的扰动,且这种扰动存在一定的不确定性;而如何合理地确定飞行器的气动误差带也是高超声速飞行的一个关键。本文主要从工程设计的角度对这些气动问题及其影响进行了论述,提出为满足高超声速飞行的需求,仍应针对所关注的问题发展相关的理论分析与数值模拟技术,进一步提升地面风洞试验的技术水平,并强调了开展相关气动飞行试验的重要性。

关键词: 高超声速, 气动设计, 转捩, 流动分离, 气动误差带

Abstract:

Transition, laminar flow separation and aerodynamic error band are some aerodynamic issues which should be paid more attention to for hypersonic flight. The aerodynamic properties may be influenced obviously and with some uncertainty by transition and laminar flow separation. And how to determine the aerodynamic error band reasonably is also a key for hypersonic flight. These issues and their influences are discussed in this paper mainly from the view point of engineering design. To fulfill the need of hypersonic flight, we should further develop the relevant theoretical analysis and digital simulation technology and raise the technical level of ground tests at wind tunnel. Besides, aerodynamic flight tests should also be emphasized.

Key words: hypersonic, aerodynamic design, transition, flow separation, aerodynamic error band

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