275 citations · 1.1k across the 26 of their papers we have counts for
26 papers
Semi-convection in rotating spherical shells: flows, layers and dynamos
Paul Pružina, Nathanaël Schaeffer, David Cébron
Large regions of giant planets are thought to possess unstable thermal gradients stabilised by gradients in heavy-element composition. The fluid can then develop semi-convection, a…
Planetary dynamos driven by semiconvection in stably stratified layers
Paul Pružina, David Cébron, Nathanaël Schaeffer
Stably stratified fluid layers are common in gaseous planets, stellar interiors, and planetary cores, and have long been considered incapable of sustaining dynamo action. Here, we…
Dynamic regimes in planetary cores: τ-{\ell} diagrams
Henri-Claude Nataf, Nathanaël Schaeffer
Planetary cores are the seat of rich and complex fluid dynamics, in which the effects of rotation and magnetic field combine. The equilibria governing the strength of the magnetic…
Mean zonal flows induced by weak mechanical forcings in rotating spheroids
David Cébron, Jérémie Vidal, Nathanaël Schaeffer +2
The generation of mean flows is a long-standing issue in rotating fluids. Motivated by planetary objects, we consider here a rapidly rotating fluid-filled spheroid, which is subjec…
The Effects of Robin Boundary Condition on Thermal Convection in a Rotating Spherical Shell
Thibaut Clarté, Nathanaël Schaeffer, Stéphane Labrosse +1
Convection in a spherical shell is widely used to model fluid layers of planets and stars. The choice of thermal boundary conditions in such models is not always straightforward. T…
Rotating double-diffusive convection in stably stratified planetary cores
Rémy Monville, Jérémie Vidal, David Cébron +1
In planetary fluid cores, the density depends on temperature and chemical composition, which diffuse at very different rates. This leads to various instabilities, bearing the name…