Chaotic dynamos generated by a turbulent flow of liquid sodium
- Ravelet, Florent
- Berhanu, Michaël
- Monchaux, Romain
- Aumaître, Sébastien
- Chiffaudel, Arnaud
- Daviaud, François
- Dubrulle, Bérengère
- Bourgoin, Mickaël
- Odier, Philippe
- Pinton, Jean-François
- Plihon, Nicolas
- Volk, Romain
- Fauve, Stéphan
- Mordant, Nicolas
- Pétrélis, François
Publication date
August 2008
DOI Publisher
American Physical Society (APS)Abstract
International audienceWe report the observation of several dynamical regimes of the magnetic field generated by a turbulent flow of liquid sodium (VKS experiment). Stationary dynamos, transitions to relaxation cycles or to intermittent bursts, and random field reversals occur in a fairly small range of parameters. Large scale dynamics of the magnetic field result from the interactions of a few modes. The low dimensional nature of these dynamics is not smeared out by the very strong turbulent fluctuations of the flow
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