6533b7d6fe1ef96bd1265d5f

RESEARCH PRODUCT

Open questions about homogeneous fluid dynamos: The VKS experiment

Stéphan FauveMickaël BourgoinJavier BurgueteArnaud ChiffaudelFrançois PétrélisPhilippe OdierJean-françois PintonLouis MariéFrançois Daviaud

subject

Physics[PHYS]Physics [physics]TurbulenceGeneral Physics and AstronomyContext (language use)Mechanics01 natural sciences010305 fluids & plasmasMagnetic field[PHYS] Physics [physics][SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]Physics::GeophysicsPhysics::Fluid DynamicsTheoretical physicsHomogeneous0103 physical sciencesSaturation level[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]Electrical and Electronic Engineering010306 general physicsDynamo

description

International audience; We consider several problems that arise in the context of homogeneous fluid dynamos such as the effect of turbulence on the dynamo threshold, the saturation level of the generated magnetic field above the threshold and its dynamics. We compare some of our predictions with the recent experimental results of the Karlsruhe and Riga experiments. Finally, we present the VKS experiment that we have designed to answer some of the remaining open questions. We study, in particular, the response of a turbulent flow to an external magnetic field.

https://hal-cea.archives-ouvertes.fr/cea-01373845