Ballooning stability of axisymmetric plasmas with sheared equilibrium flows

Amitava Bhattacharjee, R. Iacono, J. L. Milovich, C. Paranicas

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

A WKB theory is formulated for large-n ballooning modes in axisymmetric, toroidal plasmas with sheared equilibrium flows. The validity of the standard ballooning representation is severely restricted in the presence of sheared toroidal flow, despite the fact that to leading order in (1/n), where n is the azimuthal number, the eigenmode equation contains only derivatives along a field line. Necessary and sufficient conditions for stability are obtained in a high-beta ordering for rigid toroidal rotation as well as field-aligned flows.

Original languageEnglish (US)
Pages (from-to)2207-2212
Number of pages6
JournalPhysics of Fluids B
Volume1
Issue number11
DOIs
StatePublished - Jan 1 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

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