{"title":"Diffusion-Drift Modeling of the Electrodynamic Structure of the Penning Discharge in Molecular Hydrogen","authors":"S. T. Surzhikov","doi":"10.1134/S0015462823602796","DOIUrl":null,"url":null,"abstract":"<p>A diffusion-drift two-liquid two-temperature model of a gas-discharge plasma is used to describe the electrodynamic structure of the Penning discharge in molecular hydrogen at a pressure of the order of 1 mTorr. The effect of the discharge chamber’s geometrsic parameters, variations in the EMF of the power supply of an external electrical circuit, and the axial magnetic field induction on the discharge structure is studied by numerical simulation. The determining role of the flow of high-energy electrons formed during the azimuthal motion of plasma flows around the axis of symmetry of the discharge chamber on the ionization of neutral gas is shown. The modes of the quasi-monotonic and oscillatory averaged motion of charged particle fluxes in the axial regions are found.</p>","PeriodicalId":560,"journal":{"name":"Fluid Dynamics","volume":"58 8","pages":"1602 - 1622"},"PeriodicalIF":1.0000,"publicationDate":"2024-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fluid Dynamics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0015462823602796","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
A diffusion-drift two-liquid two-temperature model of a gas-discharge plasma is used to describe the electrodynamic structure of the Penning discharge in molecular hydrogen at a pressure of the order of 1 mTorr. The effect of the discharge chamber’s geometrsic parameters, variations in the EMF of the power supply of an external electrical circuit, and the axial magnetic field induction on the discharge structure is studied by numerical simulation. The determining role of the flow of high-energy electrons formed during the azimuthal motion of plasma flows around the axis of symmetry of the discharge chamber on the ionization of neutral gas is shown. The modes of the quasi-monotonic and oscillatory averaged motion of charged particle fluxes in the axial regions are found.
期刊介绍：
Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.
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