北京航空航天大学学报 ›› 2019, Vol. 45 ›› Issue (1): 57-65.doi: 10.13700/j.bh.1001-5965.2018.0175

• 论文 • 上一篇    下一篇

临近空间风切变特性及其对飞行器的影响

杨钧烽1, 肖存英1, 胡雄1, 程旋1,2   

  1. 1. 中国科学院国家空间科学中心, 北京 100190;
    2. 中国科学院大学, 北京 100049
  • 收稿日期:2018-04-02 修回日期:2018-08-10 出版日期:2019-01-20 发布日期:2019-01-28
  • 通讯作者: 肖存英 E-mail:xiaocy@nssc.ac.cn
  • 作者简介:杨钧烽,男,博士,助理研究员。主要研究方向:临近空间环境;肖存英,女,博士,研究员。主要研究方向:临近空间环境。
  • 基金资助:
    国家重点研发计划(2016YFB0501503);中国科学院战略性先导科技专项(XDA17010301);国家高分辨率对地观测青年基金(GFZX04061502);中国科学院“十三五”信息化建设专项(XXH13505-04-03)

Wind shear characteristics in near space and their impacts on air vehicle

YANG Junfeng1, XIAO Cunying1, HU Xiong1, CHENG Xuan1,2   

  1. 1. National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-04-02 Revised:2018-08-10 Online:2019-01-20 Published:2019-01-28
  • Supported by:
    National Key R & D Program of China (2016YFB0501503); Strategic Priority Research Program of Chinese Academy of Sciences (XDA17010301); the National High Resolution Earth Observation Foundation for Young Scientists of China (GFZX04061502); 13th Five-year Informatization Plan of Chinese Academy of Sciences (XXH13505-04-03)

摘要: 基于MERRA再分析资料的风场数据,根据数理统计理论,对酒泉(39.1°N,98.5°E)上空临近空间的20~78 km的大气风场进行了风切变特征分析,并分析了临近空间风切变对飞行器的影响。研究表明,临近空间最多风向在1月和10月为西风,7月为东风,4月在50 km以下为西风,以上为东风;99%概率最大风速在1月最大;最大风引起的风切变存在一定的高度范围。根据最大风和最小风给出了综合矢量风。此外发现临近空间风切变对飞行器产生的风攻角显著,对马赫数为3、5和8的飞行器产生风攻角在69 km最大,分别为8.5°、5.1°和3.2°。

关键词: 临近空间, 风切变, 综合矢量风, 飞行器, 风攻角

Abstract: Based on the near-space wind field data from MERRA reanalysis data, the seasonal variation of atmospheric wind field at 20-78 km is investigated. The characteristics of wind shear over Jiuquan (39.1°N, 98.5°E) are analyzed by the method of mathematical statistics. Moreover, the effect of wind shear on the near-space aircraft is studied. The results show that the wind in near space is eastward in January and October, westward in July, and eastward (westward) below (above) 50 km in April. The maximum wind speed occurs in January with 99% probability and the shear induced by the maximum wind has a certain height range. The synthetical wind vector is also given by the maximum wind and minimum wind. In addition, the wind attack angle of the near-space aircraft caused by the wind shear is significant. The wind attack angles for air vehicle with Mach numbers 3, 5 and 8 are biggest at 69 km, which are 8.5°, 5.1° and 3.2° respectively.

Key words: near space, wind shear, synthetical wind vector, air vehicle, wind attack angle

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