79 citations · 345 across the 12 of their papers we have counts for
12 papers
Localized layers of turbulence in stratified horizontally sheared Poiseuille flow
Joris Labarbe, Patrice Le Gal, Uwe Harlander +2
This article presents a numerical analysis of the instability developing in horizontally sheared Poiseuille flow, when stratification extends along the vertical direction. Our stud…
Swimming of a ludion in a stratified sea
P. Le Gal, B. Castillo Morales, S. Hernandez Zapata +1
We describe and model experimental results on the dynamics of a "ludion" - a neutrally buoyant body - immersed in a layer of stably stratified salt water. By oscillating a piston i…
The linear instability of the stratified plane Couette flow
Giulio Facchini, Benjamin Favier, Patrice Le Gal +2
We present the stability analysis of a plane Couette flow which is stably stratified in the vertical direction orthogonally to the horizontal shear. Interest in such a flow comes f…
Double-diffusive convection and baroclinic instability in a differentially heated and initially stratified rotating system: the barostrat instability
Miklos Vincze, Ion Borcia, Uwe Harlander +1
A water-filled differentially heated rotating annulus with initially prepared stable vertical salinity profiles is studied in the laboratory. Based on two-dimensional horizontal pa…
Magnetohydrodynamic simulations of the elliptical instability in triaxial ellipsoids
David Cébron, Michael Le Bars, Pierre Maubert +1
The elliptical instability can take place in planetary cores and stars elliptically deformed by gravitational effects, where it generates large-scale three-dimensional flows assume…
Elliptical instability in hot Jupiter systems
David Cébron, Michael Le Bars, Patrice Le Gal +3
Several studies have already considered the influence of tides on the evolution of systems composed of a star and a close-in companion to tentatively explain different observations…
Elliptical instability in terrestrial planets and moons
David Cébron, Michael Le Bars, Claire Moutou +1
The presence of celestial companions means that any planet may be subject to three kinds of harmonic mechanical forcing: tides, precession/nutation, and libration. These forcings c…
The Universal Aspect Ratio of Vortices in Rotating Stratifi?ed Flows: Experiments and Observations
Oriane Aubert, Michael Le Bars, Patrice Le Gal +1
We validate a new law for the aspect ratio of vortices in a rotating, stratified flow, where and are the vertical half-height and horizontal length scale of the vo…
The Universal Aspect Ratio of Vortices in Rotating Stratified Flows: Theory and Simulation
Pedram Hassanzadeh, Philip S. Marcus, Patrice Le Gal
We derive a relationship for the vortex aspect ratio (vertical half-thickness over horizontal length scale) for steady and slowly evolving vortices in rotating stratified fluid…
Elliptical instability of a flow in a rotating shell
L. Lacaze, P. Le Gal, S. Le Dizès
A theoretical and experimental study of the spin-over mode induced by the elliptical instability of a flow contained in a slightly deformed rotating spherical shell is presented. T…
Magnetic field induced by elliiptical instability in a rotating tidally distorded sphere
P. Le Gal, L. Lacaze, S. Le Dizès
It is usually believed that the geo-dynamo of the Earth or more generally of other planets, is created by the convective fluid motions inside their molten cores. An alternative to…
Identification of parameters in amplitude equations describing coupled wakes
José Maria Fullana, Maurice Rossi, Stéphane Zaleski +1
We study the flow behind an array of equally spaced parallel cylinders. A system of Stuart-Landau equations with complex parameters is used to model the oscillating wakes. Our purp…