Dynamos: from an astrophysical model to laboratory experiments

DD Sokoloff, RA Stepanov, PG Frick - Physics-Uspekhi, 2014 - iopscience.iop.org
Magnetic field generation and evolution in celestial bodies—the subject matter of the theory
of the dynamo—held Ya B Zeldovich's interest for years. Over the time since then, the study …

Generation of a magnetic field by dynamo action in a turbulent flow of liquid sodium

R Monchaux, M Berhanu, M Bourgoin, M Moulin… - Physical review …, 2007 - APS
We report the observation of dynamo action in the von Kármán sodium experiment, ie, the
generation of a magnetic field by a strongly turbulent swirling flow of liquid sodium. Both …

Magnetic field reversals in an experimental turbulent dynamo

M Berhanu, R Monchaux, S Fauve, N Mordant… - Europhysics …, 2007 - iopscience.iop.org
We report the first experimental observation of reversals of a dynamo field generated in a
laboratory experiment based on a turbulent flow of liquid sodium. The magnetic field …

Lorentz force velocimetry

A Thess, EV Votyakov, Y Kolesnikov - Physical review letters, 2006 - APS
We describe a noncontact technique for velocity measurement in electrically conducting
fluids. The technique, which we term Lorentz force velocimetry (LFV), is based on exposing …

Magnetohydrodynamic experiments on cosmic magnetic fields

F Stefani, A Gailitis, G Gerbeth - ZAMM‐Journal of Applied …, 2008 - Wiley Online Library
It is widely known that cosmic magnetic fields, ie the fields of planets, stars, and galaxies, are
produced by the hydromagnetic dynamo effect in moving electrically conducting fluids. It is …

[图书][B] Mathematical aspects of natural dynamos

E Dormy, AM Soward - 2007 - taylorfrancis.com
Although the origin of Earth's and other celestial bodies' magnetic fields remains unknown,
we do know that the motion of electrically conducting fluids generates and maintains these …

Contactless inductive flow tomography

F Stefani, T Gundrum, G Gerbeth - … Review E—Statistical, Nonlinear, and Soft …, 2004 - APS
The three-dimensional velocity field of a propeller-driven liquid metal flow is reconstructed
by a contactless inductive flow tomography. The underlying theory is presented within the …

The von Kármán sodium experiment: turbulent dynamical dynamos

R Monchaux, M Berhanu, S Aumaître, A Chiffaudel… - Physics of …, 2009 - pubs.aip.org
The von Kármán Sodium (VKS) experiment studies dynamo action in the flow generated
inside a cylinder filled with liquid sodium by the rotation of coaxial impellers (the von Kármán …

Slow dynamics in a turbulent von Kármán swirling flow

A de la Torre, J Burguete - Physical review letters, 2007 - APS
An experimental study of a turbulent von Kármán flow in a cylinder is presented. The mean
flow is stationary up to a Reynolds number Re= 10 4 where a bifurcation takes place. The …

Toward an experimental von Kármán dynamo: Numerical studies for an optimized design

F Ravelet, A Chiffaudel, F Daviaud, J Léorat - Physics of fluids, 2005 - pubs.aip.org
Numerical studies of a kinematic dynamo based on von Kármán type flows between two
counterrotating disks in a finite cylinder are reported. The flow has been optimized using a …