Influence of Dust Particles on Spatial Distributions of Particles and Fluxes in Positive Column of Glow Discharge

Ruihuan Tian, Chengxun Yuan, Dmitrii V. B Bogdanov, Evgeniy A. Bogdanov, Anatoly A. Kudryavtsev, Zhongxiang Zhou

Research output

Abstract

The research herein examined the results of numerical simulations of the positive column of a glow discharge in argon dusty plasma using COMSOL Multiphysics software under conditions similar to the project known as PK-4. Various scenarios dealing with formations of spatial distributions of densities and fluxes for charged particles were studied, and evaluations of the influence of dust particles on the discharge were obtained in a wide range of dust densities. Two extreme cases were distinguished: weak dust influence when the densities, fluxes and electric field profiles are not perturbed, and strong dust influence when all three density profiles (electrons, ions and charged dust) in the dust cloud are similar (parallel) to each other, resulting in all created charges in the dust cloud being lost inside the cloud. In such a case, the ambipolar field and the transport of charged particles are decreased in the dust cloud, and any ambipolar flux is almost absent within the cloud.
Original languageEnglish
Article number115404
JournalPlasma Science and Technology
Volume21
Issue number11
DOIs
Publication statusPublished - 13 Sep 2019

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glow discharges
spatial distribution
dust
charged particles
electron density profiles
argon plasma
dusty plasmas
computer programs
electric fields
evaluation
profiles
ions
simulation

Cite this

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title = "Influence of Dust Particles on Spatial Distributions of Particles and Fluxes in Positive Column of Glow Discharge",
abstract = "The research herein examined the results of numerical simulations of the positive column of a glow discharge in argon dusty plasma using COMSOL Multiphysics software under conditions similar to the project known as PK-4. Various scenarios dealing with formations of spatial distributions of densities and fluxes for charged particles were studied, and evaluations of the influence of dust particles on the discharge were obtained in a wide range of dust densities. Two extreme cases were distinguished: weak dust influence when the densities, fluxes and electric field profiles are not perturbed, and strong dust influence when all three density profiles (electrons, ions and charged dust) in the dust cloud are similar (parallel) to each other, resulting in all created charges in the dust cloud being lost inside the cloud. In such a case, the ambipolar field and the transport of charged particles are decreased in the dust cloud, and any ambipolar flux is almost absent within the cloud.",
keywords = "PARAMETERS, PLASMA, dusty plasma, glow discharge, kinetics, modeling, scaling laws",
author = "Ruihuan Tian and Chengxun Yuan and Bogdanov, {Dmitrii V. B} and Bogdanov, {Evgeniy A.} and Kudryavtsev, {Anatoly A.} and Zhongxiang Zhou",
year = "2019",
month = "9",
day = "13",
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language = "English",
volume = "21",
journal = "Plasma Science and Technology",
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TY - JOUR

T1 - Influence of Dust Particles on Spatial Distributions of Particles and Fluxes in Positive Column of Glow Discharge

AU - Tian, Ruihuan

AU - Yuan, Chengxun

AU - Bogdanov, Dmitrii V. B

AU - Bogdanov, Evgeniy A.

AU - Kudryavtsev, Anatoly A.

AU - Zhou, Zhongxiang

PY - 2019/9/13

Y1 - 2019/9/13

N2 - The research herein examined the results of numerical simulations of the positive column of a glow discharge in argon dusty plasma using COMSOL Multiphysics software under conditions similar to the project known as PK-4. Various scenarios dealing with formations of spatial distributions of densities and fluxes for charged particles were studied, and evaluations of the influence of dust particles on the discharge were obtained in a wide range of dust densities. Two extreme cases were distinguished: weak dust influence when the densities, fluxes and electric field profiles are not perturbed, and strong dust influence when all three density profiles (electrons, ions and charged dust) in the dust cloud are similar (parallel) to each other, resulting in all created charges in the dust cloud being lost inside the cloud. In such a case, the ambipolar field and the transport of charged particles are decreased in the dust cloud, and any ambipolar flux is almost absent within the cloud.

AB - The research herein examined the results of numerical simulations of the positive column of a glow discharge in argon dusty plasma using COMSOL Multiphysics software under conditions similar to the project known as PK-4. Various scenarios dealing with formations of spatial distributions of densities and fluxes for charged particles were studied, and evaluations of the influence of dust particles on the discharge were obtained in a wide range of dust densities. Two extreme cases were distinguished: weak dust influence when the densities, fluxes and electric field profiles are not perturbed, and strong dust influence when all three density profiles (electrons, ions and charged dust) in the dust cloud are similar (parallel) to each other, resulting in all created charges in the dust cloud being lost inside the cloud. In such a case, the ambipolar field and the transport of charged particles are decreased in the dust cloud, and any ambipolar flux is almost absent within the cloud.

KW - PARAMETERS

KW - PLASMA

KW - dusty plasma

KW - glow discharge

KW - kinetics

KW - modeling

KW - scaling laws

UR - https://proxy.library.spbu.ru:2310/article/10.1088/2058-6272/ab3275

UR - http://www.mendeley.com/research/influence-dust-particles-spatial-distributions-particles-fluxes-positive-column-glow-discharge

U2 - 10.1088/2058-6272/ab3275

DO - 10.1088/2058-6272/ab3275

M3 - Article

VL - 21

JO - Plasma Science and Technology

JF - Plasma Science and Technology

SN - 1009-0630

IS - 11

M1 - 115404

ER -