Nonlinear saturation of nonresonant internal instabilities in a straight spheromak
作者:
W. Park,
S. C. Jardin,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1983)
卷期:
Volume 26,
issue 7
页码: 1871-1873
ISSN:0031-9171
年代: 1983
DOI:10.1063/1.864364
出版商: AIP
数据来源: AIP
摘要:
An initial value numerical solution of the time‐dependent nonlinear ideal magnetohydrodynamic equations demonstrates that spheromak equilibria which are linearly unstable to nonresonant helical internal perturbations saturate at low amplitude without developing singularities. These instabilities thus represent the transition from an axisymmetric to a nonaxisymmetric equilibrium state, caused by a peaking of the current density.
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