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 language | English |
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Pages (from-to) | 1746-1751 |
Number of pages | 6 |
Journal | Physics of Plasmas |
Volume | 7 |
Issue number | 5 |
DOIs | |
Publication status | Published - 19 Apr 2000 |
Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics