| 氩气微腔放电中特性参数的数值模拟研究 |
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| 引用本文： | 夏广庆,薛伟华,陈茂林,朱雨,朱国强.氩气微腔放电中特性参数的数值模拟研究[J].物理学报,2011,60(1):15201-015201. |
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| 作者姓名： | 夏广庆 薛伟华 陈茂林 朱雨 朱国强 |
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| 作者单位： | (1)保尔·萨巴蒂埃大学等离子体与能量转换实验室,法国图卢兹 31062; (2)大连理工大学工业装备结构分析国家重点实验室,航空航天学院,大连 116024; (3)西北工业大学航天学院,西安 710072 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助(批准号:3014-893309),国家建设高水平大学公派研究生项目(批准号:[2006]3074, [2008]3039),中国博士后科学基金(批准号:20100471633)和辽宁省博士科研启动基金(批准号:20101020)资助的课题. |
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| 摘 要： | 本文采用二维自洽完全流体模型,针对阳极为通孔的高气压微腔放电结构,研究了微腔放电的参数特性.数值计算得到了氩气压强为100 Torr,放电稳态时的电势分布、电子数密度分布和电子温度分布等重要参数.模拟结果表明放电区存在显著的阴极鞘层结构,电子数密度的峰值达到1020 m-3,电子温度的量级为几个eV至十几eV,该结论与实验结果相一致.数值模拟合理的解释了微腔放电的基本原理.
关键词：
微腔放电
等离子体模拟
流体模型
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| 关 键 词： | 微腔放电 等离子体模拟 流体模型 |
| 收稿时间： | 2010-05-11 |
Numerical simulation study on characteristic parameters of microcavity discharge in argon |
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| Xia Guang-Qing,Xue Wei-Hua,Chen Mao-Lin,Zhu Yu,Zhu Guo-Qiang.Numerical simulation study on characteristic parameters of microcavity discharge in argon[J].Acta Physica Sinica,2011,60(1):15201-015201. |
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| Authors: | Xia Guang-Qing Xue Wei-Hua Chen Mao-Lin Zhu Yu Zhu Guo-Qiang |
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| Institution: | School of Aeronautics and Astronautics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;School of Aeronautics and Astronautics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;School of Astronautics, Northwestern Polytechnical University, Xi'an 710072, China;Laboratory on Plasma and Conversion of Energy(LAPLACE), Paul Sabatier University, Toulouse 31062, France;Laboratory on Plasma and Conversion of Energy(LAPLACE), Paul Sabatier University, Toulouse 31062, France |
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| Abstract: | The two-dimensional numerical model used is based on solutions of fluid equations in the drift-diffusion approximation for the electron and ion transport coupled with Poisson’s equation for electric field to simulate microcavity discharge qualities. The computation results show the potential profile, electron density distribution, ion density distribution, and electron temperature spatial distribution at the argon pressure of 100 Torr. The potential contour shows that the radial component of the electric field becomes very important as the forming of the cathode sheath. The results indicate the peak electron density is 1020 m-3, and the electron temperature is on the order of several to tens of eV. |
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| Keywords: | microcavity discharge(MCD) plasma simulation fluid model |
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