The dynamics of fluids deep in stellar interiors is a subject that bears many similarities with
geophysical fluid dynamics, with one crucial difference: the Prandtl number. The ratio of the …

This work studies two-dimensional fixed-flux Rayleigh–Bénard convection with periodic
boundary conditions in both horizontal and vertical directions and analyses its dynamics …

We consider turbulence in a stratified 'Kolmogorov'flow, driven by horizontal shear in the
form of sinusoidal body forcing in the presence of an imposed background linear stable …

Turbulent mixing in the radiative regions of stars is usually either ignored or crudely
accounted for in most stellar evolution models. However, there is growing evidence that …

We consider the dynamics of a vertically stratified, horizontally forced Kolmogorov flow.
Motivated by astrophysical systems where the Prandtl number is often asymptotically small …

A multiscale reduced description of turbulent free shear flows in the presence of strong
stabilizing density stratification is derived via asymptotic analysis of the Boussinesq …

Quantifying transport by strongly stratified turbulence in low Prandtl number (, in which slow,
large scales are diffusive while fast, small scales are not. We conclude by presenting a map …

We study the dynamical regimes of a density-stratified fluid confined between isothermal no-
slip top and bottom boundaries (at temperatures T t and T b) via direct numerical simulation …

Context. Recent numerical simulations suggest that the model by Zahn (1992, A&A, 265,
115) for the turbulent mixing of chemical elements due to differential rotation in stellar …

Shear-induced turbulence could play a significant role in mixing momentum and chemical
species in stellar radiation zones, as discussed by Zahn. In this paper we analyze the results …