Linear plasmoid instability of thin current sheets with shear flow

Lei Ni; Kai Germaschewski; Yi Min Huang; Brian P. Sullivan; Hongang Yang; Amitava Bhattacharjee

doi:10.1063/1.3428553

Linear plasmoid instability of thin current sheets with shear flow

Lei Ni, Kai Germaschewski, Yi Min Huang, Brian P. Sullivan, Hongang Yang, Amitava Bhattacharjee

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

This paper presents linear analytical and numerical studies of plasmoid instabilities in the presence of shear flow in high-Lundquist-number plasmas. Analysis demonstrates that the stability problem becomes essentially two dimensional as the stabilizing effects of shear flow become more prominent. Scaling results are presented for the two-dimensional instabilities. An approximate criterion is given for the critical aspect ratio of thin current sheets at which the plasmoid instability is triggered.

Original language	English (US)
Article number	052109
Journal	Physics of Plasmas
Volume	17
Issue number	5
DOIs	https://doi.org/10.1063/1.3428553
State	Published - May 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.3428553

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title = "Linear plasmoid instability of thin current sheets with shear flow",

abstract = "This paper presents linear analytical and numerical studies of plasmoid instabilities in the presence of shear flow in high-Lundquist-number plasmas. Analysis demonstrates that the stability problem becomes essentially two dimensional as the stabilizing effects of shear flow become more prominent. Scaling results are presented for the two-dimensional instabilities. An approximate criterion is given for the critical aspect ratio of thin current sheets at which the plasmoid instability is triggered.",

author = "Lei Ni and Kai Germaschewski and Huang, {Yi Min} and Sullivan, {Brian P.} and Hongang Yang and Amitava Bhattacharjee",

note = "Funding Information: This research was supported by CICART (DOE Grant No. DE-FG0207ER46372), NASA{\textquoteright}s Living with a Star (LWS) program (NASA Grant No. NNX09AJ86G), NSF Grant No. ATM0802727, and CMSO (NSF Grant No. PHY-0215581).",

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T1 - Linear plasmoid instability of thin current sheets with shear flow

AU - Ni, Lei

AU - Germaschewski, Kai

AU - Huang, Yi Min

AU - Sullivan, Brian P.

AU - Yang, Hongang

AU - Bhattacharjee, Amitava

N1 - Funding Information: This research was supported by CICART (DOE Grant No. DE-FG0207ER46372), NASA’s Living with a Star (LWS) program (NASA Grant No. NNX09AJ86G), NSF Grant No. ATM0802727, and CMSO (NSF Grant No. PHY-0215581).

PY - 2010/5

Y1 - 2010/5

N2 - This paper presents linear analytical and numerical studies of plasmoid instabilities in the presence of shear flow in high-Lundquist-number plasmas. Analysis demonstrates that the stability problem becomes essentially two dimensional as the stabilizing effects of shear flow become more prominent. Scaling results are presented for the two-dimensional instabilities. An approximate criterion is given for the critical aspect ratio of thin current sheets at which the plasmoid instability is triggered.

AB - This paper presents linear analytical and numerical studies of plasmoid instabilities in the presence of shear flow in high-Lundquist-number plasmas. Analysis demonstrates that the stability problem becomes essentially two dimensional as the stabilizing effects of shear flow become more prominent. Scaling results are presented for the two-dimensional instabilities. An approximate criterion is given for the critical aspect ratio of thin current sheets at which the plasmoid instability is triggered.

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Linear plasmoid instability of thin current sheets with shear flow

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