| 大气环境下氦气等离子体中化学过程数值模拟 |
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| 引用本文： | 欧阳建明,郭伟,王龙,邵福球.大气环境下氦气等离子体中化学过程数值模拟[J].中国物理 B,2005,14(1):154-158. |
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| 作者姓名： | 欧阳建明 郭伟 王龙 邵福球 |
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| 作者单位： | National University of Defence Science and Technology,Changsha,410073, China;Institute of Physics, Chinese Academy of Sciences, Beijing,100080, China;Institute of Physics, Chinese Academy of Sciences, Beijing,100080, China;Institute of Physics, Chinese Academy of Sciences, Beijing,100080, China;National University of Defence Science and Technology,Changsha,410073, China |
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| 摘 要： | 建立一个大气化学程序用以模拟大气压下（地面附近）或低压（高空）情况下混合气体（氦气中混入少量空气）中产生等离子体后的化学过程。给出了电子寿命和主要带电粒子的随时间演化图。电子寿命在大气压下要长于大气等离子体，但在低压情况下这个结论不成立。电子数密度在一很长一段时间内不服从指数衰减规律。
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| 关 键 词： | 等离子体的基本过程 化学反应和过程 电子寿命 |
| 收稿时间： | 6/4/2004 12:00:00 AM |
Numerical simulation of chemical processes in helium plasmas in atmosphere environment |
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| Ouyang Jian-Ming,Guo Wei,Wang Long and Shao Fu-Qiu.Numerical simulation of chemical processes in helium plasmas in atmosphere environment[J].Chinese Physics B,2005,14(1):154-158. |
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| Authors: | Ouyang Jian-Ming Guo Wei Wang Long and Shao Fu-Qiu |
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| Affiliation: | Institute of Physics, Chinese Academy of Sciences, Beijing,100080, China; National University of Defence Science and Technology,Changsha,410073, China; National University of Defence Science and Technology,Changsha,410073, China;Institute of Physics, Chinese Academy of Sciences, Beijing,100080, China |
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| Abstract: | A model is built to study chemical processes in plasmas generated in helium with trace amounts of air at atmospheric pressure or low pressures. The plasma lifetimes and the temporal evolutions of the main charged species are presented. The plasma lifetimes are longer than that in air plasma at
atmospheric pressure, but this is not true at low pressures. The electron number density does not strictly obey the exponential damping law in a longer period. |
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| Keywords: | helium plasma chemical processes lifetime |
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