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核聚变与等离子体物理 ›› 2011, Vol. 31 ›› Issue (3): 278-282.

• 等离子体应用 • 上一篇    下一篇

空间飞行器近尾区内场和密度空腔的研究

罗 青1,汪 静1,胡涛平2   

  1. (1. 南京晓庄学院物理与电子工程学院,南京 211171;2. 南京林业大学理学院,南京 210037)
  • 收稿日期:2009-12-09 修回日期:2011-02-24 出版日期:2011-09-15 发布日期:2011-09-09
  • 作者简介:罗青(1979-),女,江西赣州人,硕士,从事理论物理研究。
  • 基金资助:

    江苏省高校自然科学基金研究项目资助(10KJB140002)

The study of field and density cavition in the near wake region of a space vehicle

LUO Qing1, WANG Jing1, HU Tao-ping2   

  1. (1. College of Physics and Electronic Engineering, Nanjing Xiaozhuang University, Nanjing 211171; 2. College of Science, Nanjing Forestry University, Nanjing 210037)
  • Received:2009-12-09 Revised:2011-02-24 Online:2011-09-15 Published:2011-09-09

摘要:

在静态极限下,通过傅里叶变换,研究了空间飞行器近尾区内等离子体与场之间的非稳态非线性相互作用,并进行了数值求解。数值模拟结果表明,在飞行器近尾区内会产生电磁孤波和密度空腔,由电场的塌缩现象可以探测到它们。因而通过探测电磁孤波和密度空腔的形状和强度,能够探寻具有隐身特性的飞行器。

关键词: 飞行器, 等离子体, 电磁孤波, 密度空腔

Abstract:

Under the static limit, using the method of Fourier transformation, the non-steady, nonlinear interactions between plasma and field in the near wake region of a space vehicle are investigated. Numerical calculations are performed and the results show that there are the formation of the electromagnetic soliton and density caviton in the near wake region of the space vehicle, which can be detected due to the collapse of electric field. Therefore, we can trace out the space vehicle by means of observing the structure and intensity of the density caviton and electromagnetic soliton although the space vehicle may be have a disguised characteristic.

Key words: Space vehicle, Plasma, Electronmagmetic soliton, Density caviton

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