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Dynamo transition in low-dimensional models.

Abstract:

Two low-dimensional magnetohydrodynamic models containing three velocity and three magnetic modes are described. One of them (nonhelical model) has zero kinetic and current helicity, while the other model (helical) has nonzero kinetic and current helicity. The velocity modes are forced in both these models. These low-dimensional models exhibit a dynamo transition at a critical forcing amplitude that depends on the Prandtl number. In the nonhelical model, dynamo exists only for magnetic Prandt...

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Publisher copy:
10.1103/physreve.78.036409

Authors


Lessinnes, T More by this author
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Journal:
Physical review. E, Statistical, nonlinear, and soft matter physics
Volume:
78
Issue:
3 Pt 2
Pages:
036409
Publication date:
2008-09-05
DOI:
EISSN:
1550-2376
ISSN:
1539-3755
URN:
uuid:d35aaa2f-acda-4a0b-a1f9-ba2e70478e26
Source identifiers:
366359
Local pid:
pubs:366359
Language:
English
Keywords:

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