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Title: Vortex motion of dust particles due to non-conservative ion drag force in a plasma

Abstract

Vortex motion of the dust in a dusty plasma is shown to result because non-parallelism of the ion density gradient and the gradient of the magnitude of the ion ambipolar velocity cause the ion drag force on dust grains to be non-conservative. Furthermore, dust grain poloidal vortices consistent with the model predictions are experimentally observed, and the vortices change character with imposed changes in the ion temperature profile as predicted. For a certain ion temperature profile, two adjacent co-rotating poloidal vortices have a well-defined X-point analogous to the X-point in magnetic reconnection.

Authors:
ORCiD logo [1]; ORCiD logo [1]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States)
Publication Date:
Research Org.:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1469680
Alternate Identifier(s):
OSTI ID: 1237983
Grant/Contract Number:  
SC0010471
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 23; Journal Issue: 2; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Chai, Kil -Byoung, and Bellan, Paul M. Vortex motion of dust particles due to non-conservative ion drag force in a plasma. United States: N. p., 2016. Web. doi:10.1063/1.4941973.
Chai, Kil -Byoung, & Bellan, Paul M. Vortex motion of dust particles due to non-conservative ion drag force in a plasma. United States. https://doi.org/10.1063/1.4941973
Chai, Kil -Byoung, and Bellan, Paul M. Fri . "Vortex motion of dust particles due to non-conservative ion drag force in a plasma". United States. https://doi.org/10.1063/1.4941973. https://www.osti.gov/servlets/purl/1469680.
@article{osti_1469680,
title = {Vortex motion of dust particles due to non-conservative ion drag force in a plasma},
author = {Chai, Kil -Byoung and Bellan, Paul M.},
abstractNote = {Vortex motion of the dust in a dusty plasma is shown to result because non-parallelism of the ion density gradient and the gradient of the magnitude of the ion ambipolar velocity cause the ion drag force on dust grains to be non-conservative. Furthermore, dust grain poloidal vortices consistent with the model predictions are experimentally observed, and the vortices change character with imposed changes in the ion temperature profile as predicted. For a certain ion temperature profile, two adjacent co-rotating poloidal vortices have a well-defined X-point analogous to the X-point in magnetic reconnection.},
doi = {10.1063/1.4941973},
journal = {Physics of Plasmas},
number = 2,
volume = 23,
place = {United States},
year = {Fri Feb 12 00:00:00 EST 2016},
month = {Fri Feb 12 00:00:00 EST 2016}
}

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Cited by: 7 works
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Works referencing / citing this record:

Dust vortices in a direct current glow discharge plasma: a delicate balance between ion drag and Coulomb force
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Collective dynamics of large aspect ratio dusty plasma in an inhomogeneous plasma background: Formation of the co-rotating vortex series
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Multiple steady state co-rotating dust vortices in streaming plasma
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