专业电磁粒子仿真软件
上海锦科信息科技有限公司
VSim 软件培训讲义
2013 年 4 月
上海锦科信息科技有限公司 2013/04
VSim 软件培训讲义 锦科科技
目
录
第一课： VSim 基础与几何模型 ............................................................................................................. 3 1.1 VSim 基本概念 ............................................................................................................................. 3 1.2 预处理和变量定义 ....................................................................................................................... 4 1.3 全局参数和基础对象 ................................................................................................................... 6 1.4 几何建模 ....................................................................................................................................... 7 1.5 电磁场建模 ................................................................................................................................... 8 1.6 注入束流 ....................................................................................................................................... 9 1.7 粒子吸收边界 ............................................................................................................................. 10 1.8 归纳和建模步骤 ......................................................................................................................... 10 1.9 几何建模进阶 ............................................................................................................................. 10 1.10 geometry 宏 .............................................................................................................................. 13 第二课：电磁场建模：MultiField ........................................................................................................... 15 2.1 YeeFDTD 的基本概念 .............................................................................................................. 15 2.2 MultiField 框架 ............................................................................................................................ 17 2.3 边界条件和 port ......................................................................................................................... 21 2.4 宏封装：basicEM，emMultiField 和 SumRhoJ ................................................................... 28 2.5 介质与电导编码 .......................................................................................................................... 35 2.6 极坐标系下的电磁场 ................................................................................................................. 37 2.7 复杂外场引入 ............................................................................................................................. 40 2.8 静电模型 .................................................................................................................. 44 第三课：粒子的建模和发射吸收 ............................................................................................................ 47 3.1 Species 和粒子模型 .................................................................................................................. 47 3.2 ParticleSource 和 xvLoaderEmiter .......................................................................................... 48 3.3 发射粒子 ..................................................................................................................................... 48 3.4 电流函数和场致发射：变权重粒子 ......................................................................................... 51 3.5 速度设定和速度分布 ................................................................................................................. 56 3.6 装入粒子 ..................................................................................................................................... 62 3.7 ParticleSink ................................................................................................................................ 63 第四课：后处理和数据分析 .................................................................................................................... 65 4.1 历史记录和诊断 ......................................................................................................................... 65 4.2 后处理 ......................................................................................................................................... 65 4.3 转换数据 ..................................................................................................................................... 66 4.4 HDFView 和 Matlab ................................................................................................................... 68 第五课 放电和电子倍增过程的仿真 .................................................................................................... 69 5.1 放电过程的基本原理 ................................................................................................................. 69 5.2 二次电子建模 ............................................................................................................................. 69 5.3 碰撞过程 ..................................................................................................................................... 71 5.4 中性气体和空碰撞 ..................................................................................................................... 73 5.5 电子-离子碰撞和衰变 ............................................................................................................... 74 5.6 FieldIonization ............................................................................................................................ 75 5.7 impactColider ............................................................................................................................. 76