Analysis of a plasma test cell including non-neutrality and complex collision mechanisms
Analysis of a plasma test cell including non-neutrality and complex collision mechanisms
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DOI：
10.2514/6.2012-3736
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发表时间：
2012-07
期刊：
影响因子：
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通讯作者：
P. Giuliano;I. Boyd
中科院分区：
文献类型：
--
作者：
P. Giuliano;I. Boyd
本研究涉及的霍尔效应和其他等离子体推力器及其羽流的模拟中常用的数值模型的验证。的离子束模拟与实验数据从一个简化的等离子体测试单元，以更好地表征这种电推进装置的环境代表的比较。所用的模拟是DSMC-PIC工具MPIC代表重物质作为宏观粒子在非准中性方法。MPIC中添加和改进了更真实的电势求解器，从而能够模拟测试电池数据中电偏置表面的影响。此外，二次电子生产的分析，通过重物种的相互作用进行了由于一个更高的压力的现象可能与电子物理的外观。
This study concerns the validation of numerical models commonly used in simulations of Hall effect and other plasma thrusters and their plumes. A comparison is made of ion beam simulations with experimental data from a simplified plasma test cell in order to better characterize an environment representative of such electric propulsion devices. The simulation utilized is the DSMC-PIC tool MPIC representing heavy species as macro-particles in a non-quasineutral method. The addition and refinement of a more realistic electric potential solver in MPIC leads to the ability to simulate the effects of electrically biased surfaces in the test cell data. In addition, an analysis of secondary electron production via heavy species interactions is carried out due to the appearance of a higher-pressure phenomenon likely related to electron physics.