圆柱体外SGEMP的三维数值模拟

计算物理 ›› 2016, Vol. 33 ›› Issue (4): 434-440.

圆柱体外SGEMP的三维数值模拟

孙会芳, 张芳, 董志伟

北京应用物理与计算数学研究所, 北京 100094

收稿日期:2015-07-03 修回日期:2015-11-09 出版日期:2016-07-25 发布日期:2016-07-25
作者简介:孙会芳(1974-),女,硕士,副研究员,从事高功率微波及电磁脉冲效应研究,E-mail:sun_huifang@iapcm.ac.cn
基金资助:
中国工程物理研究院科学技术发展基金（2014B0403067）资助项目

3D Simulation of External SGEMP of Cylinder

SUN Huifang, ZHANG Fang, DONG Zhiwei

Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Received:2015-07-03 Revised:2015-11-09 Online:2016-07-25 Published:2016-07-25

摘要/Abstract

摘要： 研究复杂模型的系统电磁脉冲（SGEMP）特性，开发三维全电磁粒子模拟程序，用Monte Carlo方法计算电子发射的余弦角分布和指数能谱分布，作为校验，首先模拟光电子由圆柱端面向外发射的SGEMP模型，并与文献二维计算结果对比；用该程序对半径为10 cm，长度为20 cm的圆柱体只有一半侧面向外发射的三维SGEMP进行模拟，发现当发射电流为3.3A时，产生的电场最高可达56 kV·m^-1，磁场高达3.0×10^-6 T.

关键词: 全电磁粒子模拟程序, 系统电磁脉冲, 角分布, 抗核加固

Abstract: To study system-generated electromagnetic pulse(SGEMP) produced by complex model, a 3D particle in cell (PIC) code is exploited. A function module is appended to characterize cosine angular distribution and exponential energy spectra of photoelectron. For validation, external SGEMP effects induced by photoelectrons emitted from cylinder top surface is simulated and are compared with those by 2D code from literature. Subsequently, external SGEMP effects induced by photoelectrons emitted from half-side surface of a cylinder are studied. It shows that intense of electric field could get 56 kV·m^-1 and magnetic field is 3.0×10^-6T as emitting current is 3.3 A.

Key words: PIC code, system generated electromagnetic pulse, angular distribution, nuclear hardening

中图分类号:

TN753.4

孙会芳, 张芳, 董志伟. 圆柱体外SGEMP的三维数值模拟[J]. 计算物理, 2016, 33(4): 434-440.

SUN Huifang, ZHANG Fang, DONG Zhiwei. 3D Simulation of External SGEMP of Cylinder[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2016, 33(4): 434-440.

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