| 飞行体与等离子体在压缩区内相互作用数值解 |
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| 引用本文： | 徐学翔,马善钧.飞行体与等离子体在压缩区内相互作用数值解[J].吉首大学学报(自然科学版),2001,22(3):80-83. |
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| 作者姓名： | 徐学翔 马善钧 |
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| 作者单位： | (江西师范大学物理与通信电子学院, 江西 南昌 330027) |
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| 基金项目： | 江西省自然科学基金资助项目 ( 9912 0 0 2 ) |
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| 摘 要： | 在压缩区内,飞行体天线辐射出的高频调制场影响等离子体中的电荷分布,而电荷分布的扰动又反过来影响场量.采用FTCS有限差分格式方法,利用二维三分量轴对称, 对空间飞行体与压缩区等离子体非稳态相互作用过程进行数值模拟,得到了电荷密度扰动与电磁场的变化情况. 计算结果表明, 这种非线性相互作用可以引起场的塌缩并出现密度空洞.通过对密度空洞变化的探测, 可对隐身飞行体进行跟踪.
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| 关 键 词： | 压缩区 高频调制场 隐身飞行体 |
| 文章编号： | 1007-2985(2001)03-0080-04 |
| 修稿时间： | 2001年5月25日 |
Numerical Simulation of Non-steady Interaction Between Moving Bodies and Plasma in Compression Region |
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| XU Xue xiang,MA Shan jun.Numerical Simulation of Non-steady Interaction Between Moving Bodies and Plasma in Compression Region[J].Journal of Jishou University(Natural Science Edition),2001,22(3):80-83. |
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| Authors: | XU Xue xiang MA Shan jun |
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| Institution: | ( Institute of Physics and Communicative Engineering , Jiangxi Normal University, Nanchang 330027 , Jiangxi China) |
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| Abstract: | In compression region,high frequency modulational field radiated by antenna system of moving bodies in ionosphere could influence the density distribution of charged particles.A numerical simulation of non-steady interaction between moving bodies and plasma in compression region is presented.This simulation used FTCS method,considering two-dimensional three-component axis symmetrical model.The evolutions of the density disturbance and the electric field with time have been obtained.The outcomes have told us that the non-linear interaction can lead to the collapses of field and the cavitations of density.By detecting the evolution of the cavitations of density,we can trace out the stealth vehicle. |
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| Keywords: | compression region high frequency modulational field stealth vehicle |
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