45 citations · 372 across the 30 of their papers we have counts for
9 papers · 1 filter
Self-consistent Mean Field theory in weakly ionized media
Nicolas Leprovost, Eun-Jin Kim
We present a self-consistent mean field theory of the dynamo in 3D and turbulent diffusion in 2D in weakly ionized gas. We find that in 3D, the backreaction does not alter the beta…
Multi-scale theory of rotating turbulence
Nicolas Leprovost, Eun-Jin Kim
We consider turbulence induced by an arbitrary forcing and derive turbulence amplitude and turbulent transport coefficients, first by using a quasi-linear theory and then by using…
Effect of rotation on the tachoclinic transport
Nicolas Leprovost, Eun-Jin Kim
We study the effect of rotation on sheared turbulence, due to differential rotation. By solving quasi-linear equations for the fluctuating fields, we derive turbulence amplitude an…
On a long-term dynamics of the magnetised solar tachocline
Eun-Jin Kim, Nicolas Leprovost
We investigate the confinement and long-term dynamics of the magnetised solar tachocline. Starting from first principles, we derive the values of turbulent transport coefficients a…
Effect of Rossby and Alfvén waves on the dynamics of the tachocline
Nicolas Leprovost, Eun-Jin Kim
To understand magnetic diffusion, momentum transport, and mixing in the interior of the sun, we consider an idealized model of the tachocline, namely magnetohydrodynamics (MHD) tur…
Self-consistent theory of turbulent transport in the solar tachocline. III. Gravity waves
Eun-Jin Kim, Nicolas Leprovost
To understand the fundamental physical processes important for the evolution of solar rotation and distribution of chemical species, we provide theoretical predictions for particle…
Self-consistent theory of turbulent transport in the solar tachocline. II. Tachocline confinement
Nicolas Leprovost, Eun-Jin Kim
We provide a consistent theory of the tachocline confinement (or anisotropic momentum transport) within an hydrodynamical turbulence model. The goal is to explain helioseismologica…
Turbulent Diffusion of Magnetic Fields in Weakly Ionized Gas
Eun-jin Kim, P. H. Diamond
The diffusion of uni-directional magnetic fields by two dimensional turbulent flows in a weakly ionized gas is studied. The fields here are orthogonal to the plane of fluid motion.…
On Turbulent Reconnection
Eun-Jin Kim, P. H. Diamond
We examine the dynamics of turbulent reconnection in 2D and 3D reduced MHD by calculating the effective dissipation due to coupling between small-scale fluctuations and large-scale…