On the numerical modelling of a dc driven glow discharge plasma

2012-09-01
Rafatov, İsmail
Bogdanov, Ea
Kudryavtsev, Aa
We developed and tested two dimensional (axial-symmetric) models of a dc glow discharge in low pressure argon gas using two approaches. First, assembling the model from the ”general form” COMSOL Multiphysics pde’s, and second, using COMSOL’s built-in ”Plasma Module”. Calculation results have been compared with those obtained from the CFD-ACE+ package. The discharge models are based on a fluid description of ions and excited neutral species with drift-diffusion approximation for the particle flux. The data for electron transport (diffusion coefficient and mobility) as well as the rates of electron-impact plasmachemical reactions are derived from solutions of Boltzmann equation for the electron energy distribution function and corresponding collision cross-sections. The self-consistent electric field is calculated using the Poisson equation.
Citation Formats
İ. Rafatov, E. Bogdanov, and A. Kudryavtsev, “On the numerical modelling of a dc driven glow discharge plasma,” presented at the 30th International Conference on Phenomena in Ionized Gases (ICPIG), (28 Ağustos - 02 Eylül 2011), Belfast, İngiltere, 2012, Accessed: 00, 2021. [Online]. Available: http://mpserver.pst.qub.ac.uk/sites/icpig2011/435_B5_Rafatov.pdf.