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On the numerical modelling of a dc driven glow discharge plasma
Date
2012-09-01
Author
Rafatov, İsmail
Kudryavtsev, Aa
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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.
URI
http://mpserver.pst.qub.ac.uk/sites/icpig2011/435_B5_Rafatov.pdf
https://hdl.handle.net/11511/75507
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.684.5842&rep=rep1&type=pdf
Conference Name
30th International Conference on Phenomena in Ionized Gases (ICPIG), (28 Ağustos - 02 Eylül 2011)
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Department of Physics, Conference / Seminar
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This thesis deals with a one and two dimensional numerical modeling of a low-pressure DC glow discharge in argon gas. We develop two-component fluid model which uses the diffusion-drift theory for the gas discharge plasma and consists of continuity equations for electrons and ions, as well as Poisson equation for electric field. Numerical method is based on the control volume technique. Calculations are carried out in MATLAB environment. Computed results are compared with the classic theory of glow discharg...
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İ. Rafatov 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.
