Core eigenmodes and their impact on the Earth's rotation

SA Triana, M Dumberry, D Cébron, J Vidal, A Trinh… - Surveys in …, 2022 - Springer
Abstract Changes in the Earth's rotation are deeply connected to fluid dynamical processes
in the outer core. This connection can be explored by studying the associated Earth …

First field application of cyclic soft stimulation at the Pohang Enhanced Geothermal System site in Korea

H Hofmann, G Zimmermann, M Farkas… - Geophysical Journal …, 2019 - academic.oup.com
Precession of planets or moons affects internal liquid layers by driving flows, instabilities and
possibly dynamos. The energy dissipated by these phenomena can influence orbital …

Fast quasi‐geostrophic Magneto‐Coriolis modes in the Earth's core

F Gerick, D Jault, J Noir - Geophysical Research Letters, 2021 - Wiley Online Library
Fast changes of Earth's magnetic field could be explained by inviscid and diffusion‐less
quasi‐geostrophic (QG) Magneto‐Coriolis modes. We present a hybrid QG model with …

Precessing spherical shells: flows, dissipation, dynamo and the lunar core

D Cébron, R Laguerre, J Noir… - Geophysical Journal …, 2019 - academic.oup.com
Precession of planets or moons affects internal liquid layers by driving flows, instabilities and
possibly dynamos. The energy dissipated by these phenomena can influence orbital …

Turbulent viscosity acting on the equilibrium tidal flow in convective stars

J Vidal, AJ Barker - The Astrophysical Journal Letters, 2020 - iopscience.iop.org
Convection is thought to act as a turbulent viscosity in damping tidal flows and in driving spin
and orbital evolution in close convective binary systems. This turbulent viscosity should be …

Precession-driven flows in stress-free ellipsoids

J Vidal, D Cébron - Journal of Fluid Mechanics, 2023 - cambridge.org
Motivated by modelling rotating turbulence in planetary fluid layers, we investigate
precession-driven flows in ellipsoids subject to stress-free boundary conditions (SF-BC). The …

Libration‐driven flows in ellipsoidal shells

D Lemasquerier, AM Grannan, J Vidal… - Journal of …, 2017 - Wiley Online Library
Planets and satellites can undergo physical librations, which consist of forced periodic
variations in their rotation rate induced by gravitational interactions with nearby bodies. This …

Experimental study of the nonlinear saturation of the elliptical instability: inertial wave turbulence versus geostrophic turbulence

T Le Reun, B Favier, M Le Bars - Journal of Fluid Mechanics, 2019 - cambridge.org
In this paper, we present an experimental investigation of the turbulent saturation of the flow
driven by the parametric resonance of inertial waves in a rotating fluid. In our set-up, a half …

Efficiency of tidal dissipation in slowly rotating fully convective stars or planets

J Vidal, AJ Barker - Monthly Notices of the Royal Astronomical …, 2020 - academic.oup.com
Turbulent convection is thought to act as an effective viscosity in damping equilibrium tidal
flows, driving spin and orbital evolution in close convective binary systems. Compared to …

Magnetic fields driven by tidal mixing in radiative stars

J Vidal, D Cébron, N Schaeffer… - Monthly Notices of the …, 2018 - academic.oup.com
Stellar magnetism plays an important role in stellar evolution theory. Approximatively 10 per
cent of observed main sequence (MS) and pre-main-sequence (PMS) radiative stars exhibit …