Mean square displacement in small-scale nonlinear dynamos

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The stretching property of an underlying fluid is studied in a simplified statistical model of small-scale nonlinear dynamos, via the evolution of the mean square displacement. The nonlinear effect of small-scale magnetic fields is consistently incorporated in the limit of low kinetic Reynolds number. The mean square displacement between two neighboring particles, as well as that of a single particle, is shown to be reduced due to the Lorentz force associated with small-scale magnetic fields. This reduction is suggested to lead to the suppression of stretching of magnetic field lines, and subsequently to the saturation of the growth of small-scale magnetic fields.

Original languageEnglish
Pages (from-to)1746-1751
Number of pages6
JournalPhysics of Plasmas
Volume7
Issue number5
DOIs
Publication statusPublished - 19 Apr 2000
Externally publishedYes

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rotating generators
magnetic fields
Lorentz force
Reynolds number
retarding
saturation
fluids
kinetics

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Mean square displacement in small-scale nonlinear dynamos. / Kim, Eun Jin.

In: Physics of Plasmas, Vol. 7, No. 5 , 19.04.2000, p. 1746-1751.

Research output: Contribution to journalArticle

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