DOI QR코드

DOI QR Code

2차 전자방출 효과를 고려한 기체방전의 과도상태 유한요소해석

Finite Element Analysis of Gas Discharge in Transient State Considering Secondary Electron Emission Effects

  • 투고 : 2010.04.26
  • 심사 : 2010.05.20
  • 발행 : 2010.07.01

초록

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.

키워드

참고문헌

  1. G. E. Georghiou, et al., "Numerical modelling of atmospheric pressure gas discharges leading to plasma production," Journal of Physics D: Applied Physics, vol. 38, pp.R303-R328, 2005. https://doi.org/10.1088/0022-3727/38/20/R01
  2. Akira Mizuno, "NOx Removal Process Using Pulsed Discharge Plasma," IEEE Trans. on Plasma Science, vol. 31, pp. 957-962, 1995.
  3. S. K. Dhali, et al., "Two dimensional studies of streamers in gases," Journal of Physics D: Applied Physics, vol. 62, pp. 4696-4707, 1987. https://doi.org/10.1063/1.339020
  4. J. M. Meek and J. D. Craggs, Electrical breakdown of Gases, New York: Wiley, 1978.
  5. A. Hallac, et al., "Secondary emission effects on streamer branching in transient non-uniform short-gap discharges," Journal of Physics D: Applied Physics, vol. 36, pp. 2498-2509, 2003. https://doi.org/10.1088/0022-3727/36/20/011
  6. COMSOL Multiphysics User manual version 3.2a, COMSOL AB., 2008.
  7. MATLAB User manual version R2008b, The MathWorks. Inc., 2008.
  8. A. A. Kulikovsky, "Positive streamer between parallel plate electrodes in atmospheric pressure air," Journal of Physics D: Applied Physics, vol. 30, pp. 441-450, 1997. https://doi.org/10.1088/0022-3727/30/3/017
  9. G. E. Georghiou, et al., "The effect of photoemission on the streamer development and propagation in short uniform gaps," Journal of Physics D: Applied Physics, vol. 34, pp. 200-208, 2001. https://doi.org/10.1088/0022-3727/34/2/308
  10. H. Raether, "The development of electron avalanche in a spark channel (from observations in a cloud chamber)," Z. Phys, vol. 112, pp. 464, 1939. https://doi.org/10.1007/BF01340229