高电压技术2012,Vol.38Issue(7):1588-1594,7.
平板型与同轴型等离子体发生器射频大气压辉光放电特性分析
Characteristics of Radio Frequency Atmospheric Pressure Glow Discharges with Different Electrode Configurations
摘要
Abstract
In order to investigate the discharge characteristics of the plasma generators with different geometrical configurations, a one-dimensional fluid model was employed to simulate the discharge features of the planar-type and co-axial-type radio-frequency atmospheric-pressure glow discharge {RF APGD) plasma generators. And typical discharge images are analyzed by using the visible image processing technique. The modeling results show that the parameters of the plasmas (e. g. , the distributions of the electron temperature and the species number densities, etc. } produced by the planar-type generator are symmetric about for mid-plane between the electrodes, while the asymmetric features become significant with the co-axial-type generator. The spatial distributions of the plasma parameters using the different types of plasma generators are qualitatively consistent with the corresponding distributions of the grayscale values of the discharge images. The analysis of the chemical reactions shows that the spatial distributions of the plasma parameters are dependent on the electric field distributions resulting from the different electrode configurations of the plasma generators.关键词
等离子体/大气压辉光放电/射频放电/电极结构/图像处理/数值模拟/灰度值Key words
plasma/atmospheric glow discharge/radio frequency discharge/electrode configuration/imageprocessing/numerical simulation/grayseale value分类
数理科学引用本文复制引用
李和平,王志斌,乐沛思,葛楠,包成玉..平板型与同轴型等离子体发生器射频大气压辉光放电特性分析[J].高电压技术,2012,38(7):1588-1594,7.基金项目
国家自然科学基金(10972119 ()
61104204) ()
日本JSTCREST和清华大学自主科研计划(2011201019). ()