| Title |
Finite Element Analysis of Gas Discharge in Transient State Considering Secondary Electron Emission Effects |
| Authors |
김남경(Kim, Nam-Kyung) ; 정기우(Jeung, Gi-Woo) ; 최낙선(Choi, Nak-Sun) ; 이세희(Lee, Se-Hee) ; 김동훈(Kim, Dong-Hun) |
| Keywords |
Breakdown Voltage ; Discharge ; FEM ; Secondary Electron Effect |
| 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. |