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Helical shell models for MHD

Abstract:

A shell model for magnetohydrodynamics (MHD) is derived directly from the dynamical system driving the evolution of three helical modes interacting in a triad. The use of helical modes implies that two shell variables are required for the velocity as well as for the magnetic field. The advantage of the method is the automatic conservation of all the ideal quadratic MHD invariants. The number of coupling constants is however larger than in traditional shell models. This difficulty is worked ar...

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Publisher copy:
10.1007/s00162-009-0165-y

Authors


Lessinnes, T More by this author
Plunian, F More by this author
Journal:
Theoretical and Computational Fluid Dynamics
Volume:
23
Issue:
6
Pages:
439-450
Publication date:
2009-11-05
DOI:
EISSN:
1432-2250
ISSN:
0935-4964
URN:
uuid:8bcbcb4a-0a3e-439b-a8f1-53ddd070e766
Source identifiers:
367584
Local pid:
pubs:367584
Language:
English
Keywords:

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