Finite element analysis of gas discharge in transient state considering secondary electron emission effects

Nam Kyung Kim, Gi Woo Jeung, Nak Sun Choi, Se Hee Lee, Dong Hun Kim

Research output: Contribution to journalArticlepeer-review

Abstract

To analyze the gas discharge phenomena in parallel-plane electrodes, the fully coupled finite element method (FEM) considering secondary electron emission effects in discharge column was adopted in this paper. Two coupled equations of the hydrodynamic diffusion-drift equations for three carriers and the Poisson's equation for electric scalar potential should be solved as a system equation. The proposed method including two secondary electron processes of the photoemission and background ionization has been successfully applied to evaluating the breakdown voltage in parallel-plane electrodes and is verified by comparing its numerical results with the experimental ones. From the obtained results, it is inferred that the proposed numerical scheme will be useful for predicting and understanding streamer transient phenomena.

Original languageEnglish
Pages (from-to)1276-1281
Number of pages6
JournalTransactions of the Korean Institute of Electrical Engineers
Volume59
Issue number7
StatePublished - Jul 2010

Keywords

  • Breakdown voltage
  • Discharge
  • FEM
  • Secondary electron effect

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