TY - GEN
T1 - Two-dimension simulation of small scale dielectric barrier discharge in argon
AU - Yao, Congwei
AU - Chang, Zhengshi
AU - Mu, Hai Bao
AU - Deng, Jun Bo
AU - Zhang, Guan Jun
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/10/8
Y1 - 2015/10/8
N2 - Low temperature plasma generated by dielectric barrier discharge (DBD) has been paid more and more attention in recent years for its wide range of potential applications. In this paper, atmospheric argon DBD is ignited in a small gas gap of 0.1mm between two parallel glass plates covered by circular copper electrodes with a radius of 0.7 mm. A two-dimension axisymmetric numeric model, coupled with fluid and Poisson equations, is built to clarify the discharge evolution. The basic process of discharge, mainly controlled by electron energy and electric field, is analyzed, which is divided into three stages including Townsend-like discharge, streamer development and discharge extinction. Through the simulation, the spatial-temporal distribution of electron, space charge, surface charge and electric field are investigated, which indicates that the space charge plays a key role in the development of discharge. When the DBD is driven by applied voltage, five discharge channels can be found at the end of the discharge current pulse. The electric field distorted by space charge is expected to be responsible for movement of ionization wave. The surface charge is believed to be the main factor affecting the distribution of five discharge channels.
AB - Low temperature plasma generated by dielectric barrier discharge (DBD) has been paid more and more attention in recent years for its wide range of potential applications. In this paper, atmospheric argon DBD is ignited in a small gas gap of 0.1mm between two parallel glass plates covered by circular copper electrodes with a radius of 0.7 mm. A two-dimension axisymmetric numeric model, coupled with fluid and Poisson equations, is built to clarify the discharge evolution. The basic process of discharge, mainly controlled by electron energy and electric field, is analyzed, which is divided into three stages including Townsend-like discharge, streamer development and discharge extinction. Through the simulation, the spatial-temporal distribution of electron, space charge, surface charge and electric field are investigated, which indicates that the space charge plays a key role in the development of discharge. When the DBD is driven by applied voltage, five discharge channels can be found at the end of the discharge current pulse. The electric field distorted by space charge is expected to be responsible for movement of ionization wave. The surface charge is believed to be the main factor affecting the distribution of five discharge channels.
KW - Dielectric barrier discharge
KW - argon
KW - space charge
KW - streamer
KW - surface charge
KW - two-dimension axisymmetric model
UR - https://www.scopus.com/pages/publications/84962492563
U2 - 10.1109/ICPADM.2015.7295289
DO - 10.1109/ICPADM.2015.7295289
M3 - 会议稿件
AN - SCOPUS:84962492563
T3 - Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
SP - 384
EP - 387
BT - ICPADM 2015 - 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015
Y2 - 19 July 2015 through 22 July 2015
ER -