Time-dependent electron kinetics in N[sub 2] and H[sub 2] for a wide range of the field frequency including electron-vibration superelastic collisions

Journal Article · Mon Feb 01 00:00:00 EST 1993 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.47.1262· OSTI ID:6438807

Loureiro, J ^[1]

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1. Centro de Electrodinamica da Universidade Tecnica de Lisboa, Instituto Superior Tecnico, 1096 Lisboa Codex (Portugal)

Electron-energy distribution functions (EEDF), electron-transport parameters, and rate coefficients have been calculated by solving the time-dependent Boltzmann equation in weakly ionized plasmas in N[sub 2] and H[sub 2], for a wide range of the field frequency going from [omega][much lt][nu][sub [ital e]] up to [omega][much gt][nu][sub [ital m]][sup [ital e]], where [nu][sub [ital e]] and [nu][sub [ital m]][sup [ital e]] are two characteristic relaxation frequencies for energy and momentum transfer, respectively. The effects produced by the electron-vibration superelastic collisions have been taken into account in the Boltzmann equation and their influence in the electron transport has been analyzed in detail. Both the temporal behavior and the time-averaged value of the EEDF and of several macroscopic quantities have been obtained and discussed for different values of the field frequency. Among several other aspects, it is shown that the instantaneous power absorbed from the field and the one dissipated in electron collisions are not in phase, although, obviously, they exactly compensate each other on the average.

• OSTI ID: 6438807
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Vol. 47:2; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
WEAKLY IONIZED GASES
ELECTRON COLLISIONS
BOLTZMANN EQUATION
DISTRIBUTION FUNCTIONS
ELECTRON DRIFT
HYDROGEN
KINETIC EQUATIONS
NITROGEN
COLLISIONS
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
FLUIDS
FUNCTIONS
GASES
IONIZED GASES
NONMETALS
PARTIAL DIFFERENTIAL EQUATIONS
700330* - Plasma Kinetics
Transport
& Impurities- (1992-)