On the peculiar nature of turbulence in planetary dynamos
arXiv:0805.1725 · doi:10.1016/j.crhy.2008.07.009
Abstract
Under the combined constraints of rapid rotation, sphericity, and magnetic field, motions in planetary cores get organized in a peculiar way. Classical hydrodynamic turbulence is not present, but turbulent motions can take place under the action of the buoyancy and Laplace forces. Laboratory experiments, such as the rotating spherical magnetic Couette DTS experiment in Grenoble, help us understand what motions take place in planetary core conditions.
arXiv commentin press in Compte Rendu de l'Academie des Sciences
References in corpus (6)
- Generation of magnetic field by dynamo action in a turbulent flow of liquid sodium
- Magnetic Field Saturation in the Riga Dynamo Experiment
- Axial invariance of rapidly varying diffusionless motions in the Earth's core interior
- Experimental study of super-rotation in a magnetostrophic spherical Couette flow
- Longer lifespan for many solutions of the Kirchhoff equation
- Rapidly rotating spherical Couette flow in a dipolar magnetic field: an experimental study of the mean axisymmetric flow