| 基于JASMIN并行框架的2.5维粒子模拟程序NEPTUNE2D的研制北大核心CSCD |
| |
| 引用本文： | 张恒,郝建红,董烨,董志伟,杨温渊,孙会芳.基于JASMIN并行框架的2.5维粒子模拟程序NEPTUNE2D的研制北大核心CSCD[J].强激光与粒子束,2016,28(3):033007-40. |
| |
| 作者姓名： | 张恒 郝建红 董烨 董志伟 杨温渊 孙会芳 |
| |
| 作者单位： | 1.华北电力大学 电气与电子工程学院, 北京 1 02206; |
| |
| 基金项目： | 国家自然科学基金项目(11305015；11475155) |
| |
| 摘 要： | 介绍了2.5维自主研制的并行电磁粒子模拟程序NEPTUNE2D初步研发情况。该程序基于JASMIN并行自适应结构网格支撑框架研制,并行效能高,可扩展性强,且支持动态负载平衡;采用新型PIC算法替代传统算法,避免求解泊松方程修正电场,更适用于大规模并行计算;程序支持r-z坐标系下的器件仿真,可应用于高功率微波器件、电真空器件的快速模拟设计。该程序现已完成电磁场更新、粒子推进、电磁场注入/引出、粒子发射/吸收等基本物理功能模块的研制,并通过同轴线、圆波导、同轴二极管及无箔二极管算例模拟验证了模块的正确性。最后,应用NEPTUNE2D程序设计了一个高效同轴相对论返波管,给出了粒子模拟结果和并行性能测试结果。
|
| 关 键 词： | 高功率微波 粒子模拟 并行计算 同轴相对论返波管 |
| 收稿时间： | 2015-09-07 |
Developement on 2.5D electromagnetic and particle-in-cell code named NEPTUNE2D based on a massively adaptive parallel applications infrastructure named JASMIN |
| |
| Affiliation: | 1.School of Electrical &Electronic Engineering,North China Electric Power University,Beijing 102206,China;2.Institute of Applied Physics and Computational Mathematics,P.O.Box 8009,Beijing 100094,China;3.School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,China |
| |
| Abstract: | The development on a parallel 2.5D electromagnetic and particle-in-cell code named NEPTUNE2D is introduced preliminarily. The code is developed on the J parallel adaptive structured mesh applications infrastructure (JASMIN), with high parallel efficiency, strong expansibility and adaptive load-balance. A new PIC method is used instead of the classical one, which is more suitable for massively parallel simulation. This code can construct and simulate devices in the R-Z coordinate, and it is capable of fast simulation and design of high power microwave (HPM) devices and electron-vacuum tubes. At present, basic physical function modules are accomplished, such as electromagnetic field update, particle movement, electromagnetic wave input/output and particle injection/absorption. This code is verified and validated by simulations of a coaxial-line, a cylindrical waveguide, a coaxial diode and a foilless diode. Finally, by using this code, a CRBWO (coaxial relativistic backward wave oscillator) with high efficiency is designed and simulated. The physical figures are presented and parallel efficiency is given. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载全文 |
|
