Shell models of hydrodynamic turbulence originated in the seventies. Their main aim was to
describe the statistics of homogeneous and isotropic turbulence in spectral space, using a …

Cosmic magnetic fields, including the fields of planets, stars, and galaxies, are believed to
be caused by dynamo action in moving electrically conducting fluids. While the theory and …

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 …

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 …

This paper is a detailed report on a programme of direct numerical simulations of
incompressible nonhelical randomly forced magnetohydrodynamic (MHD) turbulence that …

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 …

We analyze the initial, kinematic stage of magnetic field evolution in an isotropic and
homogeneous turbulent conducting fluid with a rough velocity field, v (l)∼ l α, α< 1. This …

We present a three-pronged numerical approach to the dynamo problem at low magnetic
Prandtl numbers PM. The difficulty of resolving a large range of scales is circumvented by …

We study the transition from laminar flow to fully developed turbulence for an inertially driven
von Kármán flow between two counter-rotating large impellers fitted with curved blades over …

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 …