脉冲等离子体推力器放电电离二维PIC建模与仿真

doi:10.3969/j.issn.1674-1579.2018.02.012

空间控制技术与应用

脉冲等离子体推力器放电电离二维PIC建模与仿真

刘祺,杨磊,黄玉平,郑再平,赵絮

北京精密机电控制设备研究所,北京 100076.

出版日期:2018-04-25 发布日期:2018-05-16
作者简介:作者简介：刘祺（1991—），女，博士研究生，研究方向为电推进模型分析和测试技术；杨磊（1982—），男，高级工程师，研究方向为等离子体推进技术；黄玉平（1967—），男，研究员，研究方向为航天伺服技术、空间电推进技术相关应用；郑再平（1979—），男，高级工程师，研究方向为伺服电机控制技术；赵絮（1983—），男，工程师，研究方向为高频开关电源技术.
基金资助:
国家自然科学基金青年基金资助项目（11602016）.

TwoDimensional ParticleinCell Modeling and Numerical Simulation on the Discharge and Ionization of Pulsed Plasma Thruster

LIU Qi, YANG Lei, HUANG Yu-Ping, ZHENG Zai-Ping, ZHAO Xu-

Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China.

Online:2018-04-25 Published:2018-05-16
Supported by:
Supported by National Natural Science Foundation of China (11602016).

摘要/Abstract

摘要： 摘要：针对脉冲等离子体推力器（PPT）的放电过程，利用粒子网格蒙特卡洛（PICMCC）方法建立仿真计算模型.以LES6 PPT为例，加入电离碰撞进行电离仿真.通过粒子运动碰撞与电磁场耦合仿真计算得到电流与电路总电阻的变化规律，揭示了PPT放电过程中等离子体密度分布情况.通过对比不加入粒子预分布与加入粒子预分布的两种条件下的计算结果，得到了加入粒子预分布使带电粒子密度计算结果更接近实验结果的结论.根据PPT的工作过程，在放电之前推力器内存在等离子体，所以在仿真研究中应进行粒子的预分布.文中的研究方法对PPT的粒子方法模拟具有一定的参考意义.

关键词: 关键词：脉冲等离子体推力器, PICMCC方法, 烧蚀, 电离过程

Abstract: Abstract：A particleincell method with Monte Carlo collision (PICMCC) model is established for the discharge process in pulsed plasma thruster (PPT). The ionization process in LES6 PPT is simulated, considering the ionization collisions. According to the coupling computation of particle movement, collisions and electromagnetic field, the curves of current and resistance are acquired, and the distributions of plasma during the discharge of PPT are presented. Two initial conditions with and without particles predistribution are applied respectively to the numerical computation, implying that the results in the case with the predistribution are closer to the experimental results. The results in the other case tend to be in accordance with the results in the ignition process. The methods and model explored in this work provide a certain reference for PIC simulations in PPT.

Key words: Keywords：pulsed plasma thruster, PICMCC method, ablation, ionization process

中图分类号:

V439

刘祺, 杨磊, 黄玉平, 郑再平, 赵絮 . 脉冲等离子体推力器放电电离二维PIC建模与仿真[J]. 空间控制技术与应用, 2018, 44(2): 67-72.

LIU Qi, YANG Lei, HUANG Yu-Ping, ZHENG Zai-Ping, ZHAO Xu- . TwoDimensional ParticleinCell Modeling and Numerical Simulation on the Discharge and Ionization of Pulsed Plasma Thruster[J]. , 2018, 44(2): 67-72.

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脉冲等离子体推力器放电电离二维PIC建模与仿真

TwoDimensional ParticleinCell Modeling and Numerical Simulation on the Discharge and Ionization of Pulsed Plasma Thruster

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