Title :
Simulation of Self-Organized Pattern in Atmospheric Pressure Barrier Discharge Driven by Pulse-Modulated RF Voltage
Author :
Wang, Qi ; Sun, Ji-Zhong ; Wang, De-Zhen
Author_Institution :
Sch. of Electron. Sci. & Technol., Dalian Univ. of Technol., Dalian, China
Abstract :
In this paper, a spontaneous self-organized pattern in atmospheric pressure barrier discharge driven by pulse-modulated radio frequency (rf) power is reported with the help of a self-consistent 2-D fluid model. Under the action of pulse-modulated rf voltage with proper duty cycle, the filaments come into being, and at last four stable discharge channels are observed. The formation of self-organized filaments can be sequentially divided into three stages: preionization stage, discharge self-adjusting stage, and pattern formation stage. In the preionization stage, it exhibits homogeneous characteristics; in the discharge self-adjusting stage, discharge instability is magnified, and four filaments turn up; in the pattern formation stage, discharge channels are fixed at the same locations permanently. In addition, we widen the electrode plate and find out that the number of the self-organized discharge channels increases, while the adjacent channel distance is almost a constant as the width of the plane increases.
Keywords :
discharges (electric); filamentation instability; pattern formation; plasma simulation; adjacent channel distance; barrier discharge; discharge instability; discharge self-adjusting stage; duty cycle; electrode plate; homogeneous characteristics; pattern formation stage; plane width; preionization stage; pressure 1 atm; pulse-modulated RF voltage; pulse-modulated radiofrequency power; self-consistent 2D fluid model; self-organized discharge channels; self-organized filament formation; self-organized pattern simulation; spontaneous self-organized pattern; Atmospheric modeling; Discharges; Fault location; Pattern formation; Plasmas; Radio frequency; Dielectric barrier discharge (DBD); nonequilibrium plasma; pulse modulated; self-organized pattern;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2172227