用CAD技术实现复杂三维粒子模拟建模  

Using CAD Technique to Realize the Complex Three-Dimensional Modeling for PIC Simulation

作　　者：周俊[1] 廖臣[1] 刘大刚[1] 吴振华[1] 张开春[1] 

机构地区：[1]电子科技大学物理电子学院,成都610054

出　　处：《电子科技大学学报》2012年第2期242-246,共5页Journal of University of Electronic Science and Technology of China

基　　金：中央高校基本科研业务费(ZYGX2011J037)

摘　　要：将计算机辅助设计技术用于粒子模拟建模,能极大地提高粒子模拟方法的实用性。在对复杂真空电子学微波源、毫米波源和太赫兹源的建模需求分析基础上,采用面向对象和模块化设计方法,实现了三维粒子模拟CAD建模系统。该系统可以对各类复杂器件进行可视化建模,并生成提供给核心计算程序使用的器件参量描述文件。使用该系统分别在圆柱坐标系和直角坐标系下建模,模拟了磁绝缘线振荡器和扩展互作用振荡器。结果表明,三维粒子模拟CAD建模系统具有很好的实用性。Expanding application of computer-aided design（CAD） technique to the particle-in-cell（PIC） simulation will greatly make a large space towards the practicability of PIC method.Using object-oriented and modularized design methods,a three-dimensional CAD system for PIC simulation is realized based on the analysis of the requirement of modeling complex vacuum electronic microwave sources,millimeter-wave sources,and terahertz sources.The CAD system can visually model various complex devices and generate the parameter description file for the kernel calculation.Using this system,a magnetically insulated transmission line oscillator（MILO） and an extended interaction oscillator（EIO） are modeled and simulated in cylindrical and Cartesian coordinates respectively.The results show the practicability of the three-dimensional CAD system for PIC simulation.

关 键 词：计算机辅助设计 扩展互作用振荡器 磁绝缘线振荡器 粒子模拟 

分 类 号：O462.4[理学—电子物理学] TP391.72[理学—物理]