These lecture notes are based on a tutorial given in 2017 at a plasma physics winter school
in Les Houches. Their aim is to provide a self-contained graduate-student level introduction …

We study the evolution of a melting front between the solid and liquid phases of a pure
incompressible material where fluid motions are driven by unstable temperature gradients …

In this paper, we present numerical simulations of rapidly rotating Rayleigh-Bénard
convection in the Boussinesq approximation with stress-free boundary conditions. At …

Magnetic fields in several astrophysical objects are amplified and maintained by a dynamo
mechanism, which is the conversion of the turbulent kinetic energy to magnetic energy. A …

The presence of magnetic fields in many astrophysical objects is due to dynamo action,
whereby a part of the kinetic energy is converted into magnetic energy. A turbulent dynamo …

Magnetic fields in galaxies and galaxy clusters are amplified from a very weak seed value to
the observed G strengths by the turbulent dynamo. The seed magnetic field can be of …

The last thirty years have seen great leaps forward in the subject of magnetoconvection.
Computational techniques can now explain exotic nonlinear behaviour, transition to chaos …

We present numerical investigations into three principal properties of a small-scale dynamo
in stably stratified turbulence: the onset criterion, the growth rate, and the nature of the …

Context. Convectively driven flows play a crucial role in the dynamo processes that are
responsible for producing magnetic activity in stars and planets. It is still not fully understood …

On the problem of large-scale magnetic field generation in rotating compressible convection
Page 1 J. Fluid Mech. (2013), vol. 723, pp. 529–555. c Cambridge University Press 2013 529 …