现代雷达2016，Vol.38Issue(11)：88-94,7.DOI:10.16592/j.cnki.1004-7859.2016.11.019
基于数值模拟计算的返回舱再入黑障特性分析
Analysis of Characteristics for Reentry Capsule in Blackout Based on Numerical Simulation
张勇强 1张烨 1魏永辉 1李金逵 1孙玉柱1
作者信息
- 1. 解放军63788部队，陕西渭南714000
- 折叠
摘要
Abstract
In order to research the characteristics in blackout of plasma sheath for the reentry capsule , this paper simulated the re-entry capsule in the blackout based on FASTRAN software , the surrounding flow field and parameters of ionized gas distribution of the reentry capsule were obtained .The results showed that the compressed gas formed strong bow shock because of supersonic flight,the pressure and temperature were both increased in the shock .The gas ionized and the NO+and electron were generated ,the plasma sheath surrounding the reentry capsule was formed .By analysing the results of different reentry capsules , they were seen that after the shock layer ,the change of gas temperature was related to initial velocity , the gas pressure was related to initial velocity and initial pressure;the dissociation of gas was related to vibrational temperature ,the vibrational temperature for N 2 dissociated was higher than O 2;the major parameters of plasma sheath were the translational temperature and the electron density , the magnitude and distribution were almost the same at the same normalized distance of different reentry capsules .关键词
返回舱/黑障/流场/电离/等离子鞘套Key words
reentry capsule/blackout/flow field/ionization/plasma sheath分类
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张勇强,张烨,魏永辉,李金逵,孙玉柱..基于数值模拟计算的返回舱再入黑障特性分析[J].现代雷达,2016,38(11):88-94,7.
