Nonlinear multi-cellular fast dynamos

D. W. Hughes, F. Cattaneo, Eun Jin Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We investigate the kinematic and dynamic dynamos that result when the magnetic field is assumed to be spatially periodic on a scale twice that of the periodicity of the underlying driving velocity, the "CP flow" of Galloway and Proctor (1992). In the kinematic regime four distinct modes are possible; all appear to exhibit fast dynamo action. In the nonlinear regime mode coupling may occur and different saturated states are possible for the same parameter values.

Original languageEnglish
Pages (from-to)328-334
Number of pages7
JournalStudia Geophysica et Geodaetica
Volume42
Issue number3
DOIs
Publication statusPublished - 1 Jul 1998
Externally publishedYes

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Keywords

  • Fast dynamos
  • Mode coupling

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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