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Three‐Dimensional Fluid Model for Atmospheric Pressure Dielectric Barrier Discharge Plasma
Author(s) -
Iqbal Muhammad M.,
Turner Miles M.
Publication year - 2015
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201400231
Subject(s) - filamentation , dielectric barrier discharge , plasma , atmospheric pressure , materials science , atmospheric pressure plasma , phase (matter) , atomic physics , instability , dielectric , mechanics , chemistry , physics , optoelectronics , meteorology , organic chemistry , quantum mechanics
We developed a three‐dimensional fluid model to investigate the evolution of filamentation during the breakdown phase in an atmospheric pressure DBD plasma. Filamentation is a major source of instability in DBD plasma and it develops frequently under distinct conditions. In this study, we explore the dynamic behavior of filaments under the influence of overvoltage and driving frequency. The filamentary profile of atmospheric pressure dielectric barrier discharge is suppressed in the breakdown phase when the frequency varies in the specified domain (2.5–25 kHz) in He‐N 2 gas mixture. In particular, we contrast the spatial profiles of discharge parameters in the case of uniform and non‐uniform discharge plasma. The trapping mechanism of electrons is identified only at higher frequencies (>50 kHz) than small frequencies in the uniform DBD plasma. This simulation study describes the importance of three‐dimensional modeling for the understanding of the filamentary and uniform discharge plasmas in the breakdown phase.