Numerical Study on Atmospheric Pressure DBD in Helium: Single-breakdown and Multi-breakdown Discharges

WANG Xiaohua; YANG Aijun; RONG Mingzhe; LIU Dingxing

Plasma Science and Technology > 2011 > 13(6): 724-729.

WANG Xiaohua, YANG Aijun, RONG Mingzhe, LIU Dingxing. Numerical Study on Atmospheric Pressure DBD in Helium: Single-breakdown and Multi-breakdown Discharges[J]. Plasma Science and Technology, 2011, 13(6): 724-729.

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Numerical Study on Atmospheric Pressure DBD in Helium: Single-breakdown and Multi-breakdown Discharges

State Key Laboratory of Electrical Insulation and Power Equipments, Xi’an Jiaotong University, Xi'an 710049, China

Funds: supported by National Natural Science Foundation of China (No.50907053) and State Key Laboratory of Electrical Insulation and Power Equipment of China(EIPE 10305)

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Received Date: July 20, 2011

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Abstract

Abstract

A 1-D fluid model for homogenous Dielectric Barrier Discharge (DBD) in helium is presented, aimed at unraveling the spatial-temporal characteristics of two basic discharge regimes: single-breakdown and multi-breakdown discharges. Discharge currents, gap voltages, charge densities, electron temperature and electric field profiles of the two regimes make it clear that these two regimes are qualitatively different. It is found that the multi-breakdown discharge has a more homogenous flux on dielectrics compared to the single-breakdown discharge.
- Fluid model,
- Single-breakdown discharge,
- Multi-breakdown discharge,
- Dielectric barrier discharge

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