Chaotic dynamos generated by a turbulent flow of liquid sodium

F. Ravelet; M. Berhanu; R. Monchaux; S. Aumaître; A. Chiffaudel; F. Daviaud; B. Dubrulle; M. Bourgoin; Ph Odier; N. Plihon; J. F. Pinton; R. Volk; S. Fauve; N. Mordant; F. Pétrélis

doi:10.1103/PhysRevLett.101.074502

Chaotic dynamos generated by a turbulent flow of liquid sodium

F. Ravelet, M. Berhanu, R. Monchaux, S. Aumaître, A. Chiffaudel, F. Daviaud, B. Dubrulle, M. Bourgoin, Ph Odier, N. Plihon, J. F. Pinton, R. Volk, S. Fauve, N. Mordant, F. Pétrélis

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Abstract

We 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.

Original language	English
Article number	074502
Journal	Physical Review Letters
Volume	101
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.101.074502
Publication status	Published - 14 Aug 2008
Externally published	Yes

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10.1103/PhysRevLett.101.074502

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title = "Chaotic dynamos generated by a turbulent flow of liquid sodium",

abstract = "We 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.",

author = "F. Ravelet and M. Berhanu and R. Monchaux and S. Auma{\^i}tre and A. Chiffaudel and F. Daviaud and B. Dubrulle and M. Bourgoin and Ph Odier and N. Plihon and Pinton, \{J. F.\} and R. Volk and S. Fauve and N. Mordant and F. P{\'e}tr{\'e}lis",

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doi = "10.1103/PhysRevLett.101.074502",

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T1 - Chaotic dynamos generated by a turbulent flow of liquid sodium

AU - Ravelet, F.

AU - Berhanu, M.

AU - Monchaux, R.

AU - Aumaître, S.

AU - Chiffaudel, A.

AU - Daviaud, F.

AU - Dubrulle, B.

AU - Bourgoin, M.

AU - Odier, Ph

AU - Plihon, N.

AU - Pinton, J. F.

AU - Volk, R.

AU - Fauve, S.

AU - Mordant, N.

AU - Pétrélis, F.

PY - 2008/8/14

Y1 - 2008/8/14

N2 - We 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.

AB - We 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.

U2 - 10.1103/PhysRevLett.101.074502

DO - 10.1103/PhysRevLett.101.074502

M3 - Article

AN - SCOPUS:49749105148

SN - 0031-9007

VL - 101

JO - Physical Review Letters

JF - Physical Review Letters

IS - 7

M1 - 074502

ER -

Chaotic dynamos generated by a turbulent flow of liquid sodium

Abstract

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