Recorded 31 January 2025. Michael Le Bars of the Institut de Recherche sur les Phénomènes Hors Equilibre presents "Interplay of Boundary and Bulk Dynamics in Rotating Turbulence Driven by Libration" at IPAM's Rotating Turbulence: Interplay and Separability of Bulk and Boundary Dynamics Workshop. Abstract: Rotating turbulence is classically dominated by geostrophic vortices, which are nearly invariant along the rotation axis and exhibit an inverse energy cascade. However, an alternative turbulent regime called inertial wave turbulence can emerge, characterized by weakly nonlinear interactions among inertial waves that sustain fully three-dimensional flows and a downscale energy cascade. This state may be particularly relevant in planetary interiors that do not convect but experience libration, i.e. periodic perturbations of their spin rate. In such systems, energy is injected into bulk inertial waves via viscous or topographic coupling with boundary layers or by turbulent fluctuations when these boundary layers become centrifugally unstable. The resulting inertial wave turbulence challenges our current understanding of dissipation, mixing, and dynamo mechanisms in planetary contexts. This talk will present theoretical, experimental, and numerical investigations of the conditions and characteristics of these various turbulent states in rotating, librating systems, and will outline their possible implications for planetary interiors. Learn more online at: https://www.ipam.ucla.edu/programs/workshops/rotating-turbulence-interplay-and-separability-of-bulk-and-boundary-dynamics/