飞行体与等离子体在压缩区内相互作用数值解

journal6 ›› 2001, Vol. 22 ›› Issue (3): 80-83.

飞行体与等离子体在压缩区内相互作用数值解

(江西师范大学物理与通信电子学院, 江西南昌 330027)

出版日期:2001-09-15 发布日期:2013-01-05
作者简介:徐学翔( 1975- ) , 男,江西丰城人,江西师范大学物理与电子学院硕士研究生, 主要从事空间等离子体物理研究.
基金资助:
江西省自然科学基金资助项目( 9912002)

Numerical Simulation of Non- steady Interaction Between Moving Bodies and Plasma in Compression Region

( Institute of Physics and Communicative Engineering , Jiangxi Normal University, Nanchang 330027 , Jiangxi China)

Online:2001-09-15 Published:2013-01-05

摘要/Abstract

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.

关键词： 压缩区, 高频调制场, 隐身飞行体

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.

Key words: compression region, high f requency modulational field, stealth vehicle

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]. journal6, 2001, 22(3): 80-83.

XU Xue-Xiang, MA Shan-Jun. Numerical Simulation of Non- steady Interaction Between Moving Bodies and Plasma in Compression Region[J]. journal6, 2001, 22(3): 80-83.