Vous êtes ici : Version française > Parcours du doctorant > Formation

Séminaires de laboratoire labellisés MEGA (archives)

Séminaires MEGA 2024


  • 08 NOV
    Rotating convection is a prototypical system at the core of geophysical fluid dynamics. However, the parameter values for geophysical flows take values that are far outside those that can be studied in the laboratory or via state of the art numerical simulations. In this talk I will describe a formal asymptotic procedure that leads to a reduced systemof equations valid in the limit of very strong rotation. These equations describe four regimes as the Rayleigh number Ra increases : a disordered cellular regime near threshold, a regime of weakly interacting convective Taylor columns at larger Ra, followed for yet larger Ra by a breakdown of the convective Taylor columns into a disordered plume regime characterized by reduced heat transport efficiency, and finally by a new type of turbulence called geostrophic turbulence.

Séminaires MEGA 2023


Séminaires MEGA 2022


Séminaires MEGA 2021