Generation of a Magnetic Field by Dynamo Action in a Turbulent Flow of Liquid Sodium

Monchaux, Romain; Berhanu, Michaël; Bourgoin, Mickaël; Moulin, Marc; Odier, P.; Pinton, J.-F.; Volk, Romain; Fauve, S.; Mordant, Nicolas; Pétrélis, François; Chiffaudel, Arnaud; Daviaud, F.; Dubrulle, B.; Gasquet, C.; Marié, L.; Ravelet, Florent

doi:10.1103/physrevlett.98.044502

Public

Generation of a Magnetic Field by Dynamo Action in a Turbulent Flow of Liquid Sodium

Published in Physical Review Letters • Jan 25, 2007

Authors:

Romain Monchaux

Michaël Berhanu

Mickaël Bourgoin

Abstract

We report the observation of dynamo action in the von Kármán sodium experiment, i.e., the generation of a magnetic field by a strongly turbulent swirling flow of liquid sodium. Both mean and fluctuating parts of the field are studied. The dynamo threshold corresponds to a magnetic Reynolds number R(...

Subject

Dynamo

Physics

Magnetic Reynolds number

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