Effect of Energy Density and Gas Velocity on Transport Rate of Ions  

作　　者：孙健 白敏冬 周建刚 谷建龙 

机构地区：[1]Department of Physics, Dalian Maritime University, Key Laboratory of Strong Electric-Field Ionization Discharge in Liaoning Province, Dalian 116026, China

出　　处：《Plasma Science and Technology》2006年第5期554-557,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (No. 60471036)

摘　　要：In order to study the effect of the parameters such as the energy density and the gas velocity on the transport rate of ions, the applied force and the motion law of charged particles in the electric field of corona discharges at atmospheric pressure is investigated in this paper. As a result, when the gas velocity is raised from 1.5 m/s to 25 m/s for an energy density of 0.4 mJ/cmz, the ionic transport rate increases from 5.4 × 10^8/cm^3. s to 8× 10^10/cm^3 .s, which is an increase of over two orders of magnitude. However, in the zones of streamer and glow discharges, the effect of the input energy density and the energy density of gas ionization on the transport rate is below one order of magnitude. In conclusion, the increase of charged particle momentum can be a major factor in raising the transport rate and reducing the volume of the plasma sources.In order to study the effect of the parameters such as the energy density and the gas velocity on the transport rate of ions, the applied force and the motion law of charged particles in the electric field of corona discharges at atmospheric pressure is investigated in this paper. As a result, when the gas velocity is raised from 1.5 m/s to 25 m/s for an energy density of 0.4 mJ/cmz, the ionic transport rate increases from 5.4 × 10^8/cm^3. s to 8× 10^10/cm^3 .s, which is an increase of over two orders of magnitude. However, in the zones of streamer and glow discharges, the effect of the input energy density and the energy density of gas ionization on the transport rate is below one order of magnitude. In conclusion, the increase of charged particle momentum can be a major factor in raising the transport rate and reducing the volume of the plasma sources.

关 键 词：energy density transport rate of ions corona discharges atmospheric pressure 

分 类 号：O53[理学—等离子体物理]