An Experimental Complex for Researching High Velocity Magnetic Hydrodynamic Flows

Masloboev, I. A.; Фомичев, В. В.; Shevchenko, A. B.; Yadrenkin, M. A.

doi:10.1134/s0020441222020142

Cited by 1 publication

(1 citation statement)

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“…The present study is not only scientific but also of practical interest in the context of to optimize particular plasma technologies [49][50][51][52][53]. It is necessary to know the reaction constants involving electrons, which can lead to the production of chemically active heavy particles (radicals).…”

Section: Introductionmentioning

confidence: 99%

Two-term Boltzmann approximation versus Monte-Carlo simulation: effect of magnetic field

Tereshonok,

Chernyshev,

Abramov

et al. 2024

Phys. Scr.

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In this paper, we investigate the spatial-local electron energy distribution function (eEDF) interacting with a backgroundgas at the sub-atmospheric pressure in a wide range of applied crossed electric and magnetic fields using the Boltzmannkinetic equation. We compare solutions obtained using two numerical approaches (deterministic two-term approximation andstochastic Monte Carlo method) to identify their applicability in the context of determining drift velocity and reaction constantsfor electrons. For argon and helium, the upper limit of the reduced electric field applicability of the two-term approximationis discussed. It has been shown that the presence of a magnetic field can reduce this limit. Two explanations are given, oneis based on the math of two-term formalism, and the other is based on velocity-space analysis. Two-term approximation failsdue to it’s inability to resolve underlying cyclotron oscillation (it should result in an energy variation along the electron’strajectory). The absence of this feature causes an incorrect estimation of momentum-transfer rate. This results an inaccuracyin the estimation of the angle between electric field and drift velocity.

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Section: Introductionmentioning

confidence: 99%