物理学报2012，Vol.61Issue(4)：291-298,8.
大气压氩气介质阻挡辉光放电的一维仿真研究
One-dimensional simulation of dielectric barrier glow discharge in atmospheric pressure Ar
摘要
Abstract
In order to investigate the mechanism of dielectric barrier atmospheric pressure glow discharge（APGD） in Ar,an one-dimensional multiple particle self-consistent coupled fluid model is proposed.And the finite-element method（FEM） is used in the numerical calculation model,so the periodic evolvement waveforms of gas voltage,barrier surface charge density and discharge current density are investigated.The spatio temporal distributions of electrons,ions,metastable particles density and space electrical field are also obtained.The simulation results show that the charges accumulated on the barrier dielectric surface play an important role in ignition and extinguishment of the discharge.With the increase of applied voltage amplitude,the DBD breakdown occurs ahead of time,and discharge current density and the surface charge density increase gradually,which indicate that the discharge process becomes fierce. Furthermore,with the increase of relative permittivity of dielectric material,the discharge current density also gradually increases.The spatio temporal distributions of the particles density and the space electrical field show that the DBD breakdown occurs every half the AC period and the discharge under conditions considered in this model is a typical atmospheric pressure glow discharge（APGD）, having an obvious cathode fall region,a negative glow region,and a positive column region.关键词
介质阻挡放电（DBD）/大气压辉光放电（APGD）/低温等离子体/流体模型Key words
dielectric barrier discharge（DBD）/atmospheric pressure glow discharge（APGD）/low temperature plasma/fluid model分类
数理科学引用本文复制引用
张增辉,邵先军,张冠军,李娅西,彭兆裕..大气压氩气介质阻挡辉光放电的一维仿真研究[J].物理学报,2012,61(4):291-298,8.基金项目
全国优秀博士学位论文作者专项基金（批准号：200338）资助的课题 （）
