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A model of nonlinear evolution and saturation of the turbulent MHD dynamo

Abstract:

The growth and saturation of magnetic field in conducting turbulent media with large magnetic Prandtl numbers are investigated. This regime is very common in low-density hot astrophysical plasmas. During the early (kinematic) stage, weak magnetic fluctuations grow exponentially and concentrate at the resistive scale, which lies far below the hydrodynamic viscous scale. The evolution becomes nonlinear when the magnetic energy is comparable to the kinetic energy of the viscous-scale eddies. A p...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1088/1367-2630/4/1/384

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
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Name:
U.S. Department of Energy
Grant:
DE-AC02-76CHO3073
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Name:
Engineering and Physical Sciences Research Council
Grant:
GR/R55344/01
More from this funder
Name:
United Kingdom Atomic Energy Authority
Grant:
QS06992
Publisher:
IOP Publishing
Journal:
New Journal of Physics More from this journal
Volume:
4
Article number:
84
Publication date:
2002-10-30
DOI:
EISSN:
1367-2630
ISSN:
1367-2630
Language:
English
Pubs id:
pubs:160100
UUID:
uuid:f36559c0-0618-44ad-aed6-1f9e9da4beaf
Local pid:
pubs:160100
Source identifiers:
160100
Deposit date:
2012-12-19

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