Drift-wave eigenmodes in toroidal plasmas

Liu Chen; C. Z. Cheng

doi:10.1063/1.862907

Drift-wave eigenmodes in toroidal plasmas

Liu Chen
, C. Z. Cheng

Institute of Space and Plasma Sciences

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

76 Citations (Scopus)

Abstract

The eigenmode equation describing ballooning drift waves in toroidal plasmas is investigated both analytically and numerically. Two branches of eigenmodes are identified. One is slab-like and the other is a new branch induced by finite toroidal coupling. The slab-like eigenmodes correspond to unbounded states and experience finite shear damping. The toroidicity-induced eigenmodes, however, can become local quasi-bounded states with negligible shear damping. Both branches of eigenmodes may exist simultaneously. The corresponding analytical theories are also presented.

Original language	English
Pages (from-to)	2242-2249
Number of pages	8
Journal	Physics of Fluids
Volume	23
Issue number	11
DOIs	https://doi.org/10.1063/1.862907
Publication status	Published - 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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10.1063/1.862907

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abstract = "The eigenmode equation describing ballooning drift waves in toroidal plasmas is investigated both analytically and numerically. Two branches of eigenmodes are identified. One is slab-like and the other is a new branch induced by finite toroidal coupling. The slab-like eigenmodes correspond to unbounded states and experience finite shear damping. The toroidicity-induced eigenmodes, however, can become local quasi-bounded states with negligible shear damping. Both branches of eigenmodes may exist simultaneously. The corresponding analytical theories are also presented.",

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AB - The eigenmode equation describing ballooning drift waves in toroidal plasmas is investigated both analytically and numerically. Two branches of eigenmodes are identified. One is slab-like and the other is a new branch induced by finite toroidal coupling. The slab-like eigenmodes correspond to unbounded states and experience finite shear damping. The toroidicity-induced eigenmodes, however, can become local quasi-bounded states with negligible shear damping. Both branches of eigenmodes may exist simultaneously. The corresponding analytical theories are also presented.

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EP - 2249

JO - Physics of Fluids

JF - Physics of Fluids

IS - 11

ER -

Drift-wave eigenmodes in toroidal plasmas

Abstract

All Science Journal Classification (ASJC) codes

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