Research output: Contribution to journal › Article
On the accuracy and reliability of different fluid models of the direct current glow discharge. / Rafatov, I.; Bogdanov, E.A.; Kudryavtsev, A.A.
In: Physics of Plasmas, Vol. 19, No. 3, 2012, p. 033502_1-12.Research output: Contribution to journal › Article
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TY - JOUR
T1 - On the accuracy and reliability of different fluid models of the direct current glow discharge
AU - Rafatov, I.
AU - Bogdanov, E.A.
AU - Kudryavtsev, A.A.
PY - 2012
Y1 - 2012
N2 - We developed and tested 2D “extended fluid model” of a dc glow discharge using COMSOL MULTIPHYSICS software and implemented two different approaches. First, assembling the model from COMSOL’s general form pde’s and, second, using COMSOL’s built-in Plasma Module. The discharge models are based on the fluid description of ions and excited neutral species and use drift-diffusion approximation for the particle fluxes. The electron transport as well as the rates of electron-induced plasma-chemical reactions are calculated using the Boltzmann equation for the EEDF and corresponding collision cross-sections. The self-consistent electric field is calculated from the Poisson equation. Basic discharge plasma properties such as current-voltage characteristics and electron and ion spatial density distributions as well as electron temperature and electric field profiles were studied. While the solutions obtained by two different COMSOL models are essentially identical, the discrepancy between COMSOL and CFD-ACE+ model sol
AB - We developed and tested 2D “extended fluid model” of a dc glow discharge using COMSOL MULTIPHYSICS software and implemented two different approaches. First, assembling the model from COMSOL’s general form pde’s and, second, using COMSOL’s built-in Plasma Module. The discharge models are based on the fluid description of ions and excited neutral species and use drift-diffusion approximation for the particle fluxes. The electron transport as well as the rates of electron-induced plasma-chemical reactions are calculated using the Boltzmann equation for the EEDF and corresponding collision cross-sections. The self-consistent electric field is calculated from the Poisson equation. Basic discharge plasma properties such as current-voltage characteristics and electron and ion spatial density distributions as well as electron temperature and electric field profiles were studied. While the solutions obtained by two different COMSOL models are essentially identical, the discrepancy between COMSOL and CFD-ACE+ model sol
KW - Boltzmann equation
KW - glow discharges
KW - plasma chemistry
KW - plasma collision processes
KW - plasma flow
KW - plasma simulation
KW - plasma transport processes
KW - Poisson equation
KW - vortices
U2 - DOI: 10.1063/1.3688875
DO - DOI: 10.1063/1.3688875
M3 - Article
VL - 19
SP - 033502_1-12
JO - Physics of Plasmas
JF - Physics of Plasmas
SN - 1070-664X
IS - 3
ER -
ID: 5292452