Impurity effects on ion-drift-wave eigenmodes in a sheared magnetic field

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Abstract

The stability of ion-drift-wave eigenmodes in a slab geometry with a sheared magnetic field is investigated. It is found that in contrast to the case of universal and dissipative electron-drift-wave eigenmodes, unstable impurity-driven normal modes can appear if specific conditions are satisfied. In addition, the influence of impurities on unstable ion-temperature-gradient- driven drift eigenmodes is also studied. It is found that, if their density profile is inwardly peaked, the impurities can exert a strong stabilizing influence on these modes.

Original languageEnglish (US)
Pages (from-to)167-173
Number of pages7
JournalPhysics of Fluids
Volume23
Issue number1
DOIs
StatePublished - 1980

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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