Inertial wave turbulence vs turbulent convection in planetary cores
Planetary cores are subject to large temperature differences that can drive turbulent thermal convection. But they are also subject to gravitational torques from other bodies leading to precession motion that can trigger inertial wave turbulence. I will focus on recent results of inertial wave turbulence driven by such precession forcing from novel numerical simulations, that are able to reach similar Reynolds and Rossby numbers than the more common thermal convection simulations. I will highlight some important differences in these two categories of flow. We also obtain saturation levels of the turbulent flow and of the dissipation at various precession forcing. These can be compared to scaling laws and extrapolated to planets and stars.
Contact Nathanaël Machicoane for more information or to schedule a discussion with the seminar speaker.