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

Fingerprint

DC generators
rotating generators
Kinematics
kinematics
coupled modes
periodicity
periodic variations
Magnetic fields
magnetic field
magnetic fields

Keywords

  • Fast dynamos
  • Mode coupling

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

Cite this

Nonlinear multi-cellular fast dynamos. / Hughes, D. W.; Cattaneo, F.; Kim, Eun Jin.

In: Studia Geophysica et Geodaetica, Vol. 42, No. 3, 01.07.1998, p. 328-334.

Research output: Contribution to journalArticle

Hughes, D. W. ; Cattaneo, F. ; Kim, Eun Jin. / Nonlinear multi-cellular fast dynamos. In: Studia Geophysica et Geodaetica. 1998 ; Vol. 42, No. 3. pp. 328-334.
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