Kinetic theory of collisionless ballooning modes

C. Z. Cheng

doi:10.1063/1.863858

Kinetic theory of collisionless ballooning modes

C. Z. Cheng

Institute of Space and Plasma Sciences

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

98 Citations (Scopus)

Abstract

A kinetic ballooning mode equation retaining full finite ion Larmor radius and ion magnetic drift resonance effects is derived by employing the high n ballooning mode formalism. It is found that the critical β is smaller than the ideal magnetohydrodynamic critical β, except that when η_i = 0(η_i≡d 1n T_i/d 1n N), they are identical. The finite Larmor radius effects reduce the growth rate but do not stabilize the mode. The ion magnetic drift resonance effects are destabilizing.

Original language	English
Pages (from-to)	1020-1026
Number of pages	7
Journal	Physics of Fluids
Volume	25
Issue number	6
DOIs	https://doi.org/10.1063/1.863858
Publication status	Published - 1982

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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10.1063/1.863858

Cite this

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abstract = "A kinetic ballooning mode equation retaining full finite ion Larmor radius and ion magnetic drift resonance effects is derived by employing the high n ballooning mode formalism. It is found that the critical β is smaller than the ideal magnetohydrodynamic critical β, except that when ηi = 0(ηi≡d 1n Ti/d 1n N), they are identical. The finite Larmor radius effects reduce the growth rate but do not stabilize the mode. The ion magnetic drift resonance effects are destabilizing.",

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AB - A kinetic ballooning mode equation retaining full finite ion Larmor radius and ion magnetic drift resonance effects is derived by employing the high n ballooning mode formalism. It is found that the critical β is smaller than the ideal magnetohydrodynamic critical β, except that when ηi = 0(ηi≡d 1n Ti/d 1n N), they are identical. The finite Larmor radius effects reduce the growth rate but do not stabilize the mode. The ion magnetic drift resonance effects are destabilizing.

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Kinetic theory of collisionless ballooning modes

Abstract

All Science Journal Classification (ASJC) codes

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