Publications (17)
Rapidly rotating spherical Couette flow in a dipolar magnetic field: an experimental study of the mean axisymmetric flow
Henri-Claude Nataf, Thierry Alboussiere, Daniel Brito +4
In order to explore the magnetostrophic regime expected for planetary cores, experiments have been conducted in a rotating sphere filled with liquid sodium, with an imposed dipolar…
Convective Lengthscale in Planetary Cores
Céline Guervilly, Philippe Cardin, Nathanaël Schaeffer
Convection is a fundamental physical process in the fluid cores of planets because it is the primary transport mechanism for heat and chemical species and the primary energy source…
Zonal shear and super-rotation in a magnetized spherical Couette flow experiment
Daniel Brito, Thierry Alboussière, Philippe Cardin +6
We present measurements performed in a spherical shell filled with liquid sodium, where a 74 mm-radius inner sphere is rotated while a 210 mm-radius outer sphere is at rest. The in…
Numerical Simulations of Dynamos Generated in Spherical Couette Flows
Céline Guervilly, Philippe Cardin
We numerically investigate the efficiency of a spherical Couette flow at generating a self-sustained magnetic field. No dynamo action occurs for axisymmetric flow while we always f…
Multiple zonal jets and convective heat transport barriers in a quasi-geostrophic model of planetary cores
Céline Guervilly, Philippe Cardin
We study rapidly-rotating Boussinesq convection driven by internal heating in a full sphere. We use a numerical model based on the quasi-geostrophic approximation for the velocity…
Subcritical convection of liquid metals in a rotating sphere using a quasi-geostrophic model
Celine Guervilly, Philippe Cardin
We study nonlinear convection in a rapidly rotating sphere with internal heating for values of the Prandtl number relevant for liquid metals (). We use a nu…