Stability of simple nonlinear α2- dynamos
作者:
F. Krause,
R. Meinel,
期刊:
Geophysical & Astrophysical Fluid Dynamics
(Taylor Available online 1988)
卷期:
Volume 43,
issue 1
页码: 95-117
ISSN:0309-1929
年代: 1988
DOI:10.1080/03091928808208866
出版商: Taylor & Francis Group
关键词: Magnetohydrodynamics;nonlinear dynamos;stability
数据来源: Taylor
摘要:
The stability of simple nonlinear α2-dynamos is investigated for cases where the steady problem can be solved exactly. It is found that the only stable nonlinear steady solution is that which bifurcates from the trivial solution at the marginal dynamo number of the most easily excitable linear mode. This result favours magnetic field configurations which possess a definite symmetry with respect to the equatorial plane of cosmic bodies.
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