Finite-beta modifications of drift and trapped-electron modes

G. Rewoldt; W. M. Tang; E. A. Frieman

doi:10.1063/1.863372

Finite-beta modifications of drift and trapped-electron modes

G. Rewoldt, W. M. Tang, E. A. Frieman

PPPL Computational Science

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4 Scopus citations

Abstract

A previous two-dimensional electrostatic calculation for the spatial structure of drift and trapped-electron modes is extended to include finite-β effects. Specifically, the parallel perturbed vector potential, and the parallel Ampere's law are added to the calculation. Illustrative results are presented. The effect of increasing β can be either stabilizing or destabilizing, depending on the parameter values chosen. For present tokamak β values, the finite-β effects are small.

Original language	English (US)
Pages (from-to)	238-242
Number of pages	5
Journal	Physics of Fluids
Volume	24
Issue number	2
DOIs	https://doi.org/10.1063/1.863372
State	Published - 1981

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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10.1063/1.863372

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abstract = "A previous two-dimensional electrostatic calculation for the spatial structure of drift and trapped-electron modes is extended to include finite-β effects. Specifically, the parallel perturbed vector potential, and the parallel Ampere's law are added to the calculation. Illustrative results are presented. The effect of increasing β can be either stabilizing or destabilizing, depending on the parameter values chosen. For present tokamak β values, the finite-β effects are small.",

author = "G. Rewoldt and Tang, \{W. M.\} and Frieman, \{E. A.\}",

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AU - Tang, W. M.

AU - Frieman, E. A.

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N2 - A previous two-dimensional electrostatic calculation for the spatial structure of drift and trapped-electron modes is extended to include finite-β effects. Specifically, the parallel perturbed vector potential, and the parallel Ampere's law are added to the calculation. Illustrative results are presented. The effect of increasing β can be either stabilizing or destabilizing, depending on the parameter values chosen. For present tokamak β values, the finite-β effects are small.

AB - A previous two-dimensional electrostatic calculation for the spatial structure of drift and trapped-electron modes is extended to include finite-β effects. Specifically, the parallel perturbed vector potential, and the parallel Ampere's law are added to the calculation. Illustrative results are presented. The effect of increasing β can be either stabilizing or destabilizing, depending on the parameter values chosen. For present tokamak β values, the finite-β effects are small.

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DO - 10.1063/1.863372

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EP - 242

JO - Physics of Fluids

JF - Physics of Fluids

IS - 2

ER -

Finite-beta modifications of drift and trapped-electron modes

Abstract

All Science Journal Classification (ASJC) codes

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