| 直流辉光放电等离子体轴向动力学过程的研究 |
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| 引用本文： | 刘祖黎,宋文栋,魏合林,李再光.直流辉光放电等离子体轴向动力学过程的研究[J].物理学报,1992,41(1):56-61. |
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| 作者姓名： | 刘祖黎 宋文栋 魏合林 李再光 |
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| 作者单位： | (1)华中理工大学激光技术国家实验室,武汉,430074; (2)华中理工大学物理系,武汉,430074 |
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| 摘 要： | 采用磁流体动力学理论,考虑了电子与中性粒子的非弹性碰撞,应用有限差分法研究了直流辉光放电氩等离子体的轴向动力学过程,得到了氩等离子体密度、输运速度、温度以及电位的轴向分布,发现了气体压强和电极间距的变化对阴极区的电子密度有较大的影响,而对阴极区的离子密度的影响甚微。
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| 关 键 词： | 辉光放电 等离子体 轴向动力学 |
| 收稿时间： | 2/5/1991 12:00:00 AM |
A STUDY ON DYNAMICS OF dc GLOW DISCHARGE PLASMA AT AXIAL DIRECTION |
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| LIU ZU-LI,SONG WEN-DONG,WEI HE-LIN and LI ZAI-GUANG.A STUDY ON DYNAMICS OF dc GLOW DISCHARGE PLASMA AT AXIAL DIRECTION[J].Acta Physica Sinica,1992,41(1):56-61. |
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| Authors: | LIU ZU-LI SONG WEN-DONG WEI HE-LIN and LI ZAI-GUANG |
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| Abstract: | We study one dimensional dynamics of dc glow discharge for parallel plates, taking into account the effect of inelastic collisions between electrons and neutral particles on the energy and momentum loss by the MHD theory. The distributions of density, velocity and temperature of plasma and the electric field for Ar plasma are obtained. It is found that the gas pressure and the electrode spacing give significant influence on electron density in the cathode region, but the influence on ion density is small. |
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