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:
-
- 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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Works referencing / citing this record:
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