Interchange instability in finite conductivity accelerated plasma arcs

M. Bourouis; M. A. Huerta; F. Rodriguez-Trelles

doi:10.1109/20.195737

Interchange instability in finite conductivity accelerated plasma arcs

M. Bourouis, M. A. Huerta, F. Rodriguez-Trelles

Physics

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

3 Scopus citations

Abstract

A first order perturbation expansion of the MHD equations is used to study the growth of the Rayleigh-Taylor or interchange instability in accelerated plasma arcs. The mode equation is fourth order due to the inclusion of finite conductivity. It is solved numerically to yield results that are an improvement over previous work. The growth rates are less than in the infinite conductivity model. As in previous work the growth rates in typical rail launcher situations are large enough to permit full development of the instability.

Original language	English (US)
Pages (from-to)	1113-1118
Number of pages	6
Journal	IEEE Transactions on Magnetics
Volume	29
Issue number	1
DOIs	https://doi.org/10.1109/20.195737
State	Published - Jan 1 1993

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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abstract = "A first order perturbation expansion of the MHD equations is used to study the growth of the Rayleigh-Taylor or interchange instability in accelerated plasma arcs. The mode equation is fourth order due to the inclusion of finite conductivity. It is solved numerically to yield results that are an improvement over previous work. The growth rates are less than in the infinite conductivity model. As in previous work the growth rates in typical rail launcher situations are large enough to permit full development of the instability.",

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AB - A first order perturbation expansion of the MHD equations is used to study the growth of the Rayleigh-Taylor or interchange instability in accelerated plasma arcs. The mode equation is fourth order due to the inclusion of finite conductivity. It is solved numerically to yield results that are an improvement over previous work. The growth rates are less than in the infinite conductivity model. As in previous work the growth rates in typical rail launcher situations are large enough to permit full development of the instability.

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Interchange instability in finite conductivity accelerated plasma arcs

Abstract

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