First principles calculation of the effect of Coulomb collisions in partially ionized gases

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Coulomb collisions, at appreciable ratios (η) of the electron to the neutral particle density, influence significantly the electron kinetics in particle swarms and in plasmas of gas discharges. This paper introduces a combination of Molecular Dynamics and Monte Carlo simulation techniques, to provide a novel, approximation-free, first principles calculation method for the velocity distribution function of electrons, and related swarm characteristics, at arbitrary η. Simulation results are presented for electrons in argon gas, for density ratios between zero and 10-1, representing the limits of a negligible electron density and an almost complete Maxwellization of the velocity distribution function, respectively.

Original languageEnglish
Article number043504
JournalPhysics of Plasmas
Volume21
Issue number4
DOIs
Publication statusPublished - 2014

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Coulomb collisions
ionized gases
electrons
velocity distribution
distribution functions
neutral particles
gas discharges
simulation
argon
molecular dynamics
kinetics
approximation
gases

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

First principles calculation of the effect of Coulomb collisions in partially ionized gases. / Donkó, Z.

In: Physics of Plasmas, Vol. 21, No. 4, 043504, 2014.

Research output: Contribution to journalArticle

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