127 citations · 1.1k across the 46 of their papers we have counts for
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Relative dispersion and eddy diffusivity in laboratory experiments of -plane turbulence
Daphné Lemasquerier, Matthew Burke, Benjamin Favier +2
We present the first experimental measures of relative dispersion and turbulent diffusion in rapidly-rotating turbulence in the zonostrophic regime, i.e., in the presence of instan…
Zonal flows driven by libration in rotating spherical shells: the case of periodic characteristic paths
Xu Chang, Jiyang He, Benjamin Favier +1
This work investigates the weakly nonlinear dynamics of internal shear layers and the mean zonal flow induced by the longitudinal libration of an inner core within a spherical shel…
Instability triggered by mixed convection in a thin fluid layer
Florian Rein, Keaton J. Burns, Stefan G. Llewellyn Smith +3
We investigate the convective stability of a thin, infinite fluid layer with a rectangular cross-section, subject to imposed heat fluxes at the top and bottom and fixed temperature…
Experimental study of the convection in a thin cylindrical gas layer with imposed bottom and top fluxes and imposed side temperature
Florian Rein, Laure Carénini, Florian Fichot +2
We investigate convection in a thin cylindrical gas layer with an imposed flux at the bottom and a fixed temperature along the side, using a combination of direct numerical simulat…
Interaction between forced and natural convection in a thin cylindrical fluid layer at low Prandtl number
Florian Rein, Laure Carénini, Florian Fichot +2
Motivated by nuclear safety issues, we study the heat transfers in a thin cylindrical fluid layer with imposed fluxes at the bottom and top surfaces (not necessarily equal) and a f…
From a vortex gas to a vortex crystal in instability-driven two-dimensional turbulence
A. van Kan, B. Favier, K. Julien +1
We study structure formation in two-dimensional turbulence driven by an external force, interpolating between linear instability forcing and random stirring, subject to nonlinear d…
Internal shear layers in librating spherical shells: the case of attractors
Jiyang He, Benjamin Favier, Michel Rieutord +1
Following our previous work on periodic ray paths (He et al, 2022), we study asymptotically and numerically the structure of internal shear layers for very small Ekman numbers in a…
Suppression of wall modes in rapidly rotating Rayleigh-Bénard convection by narrow horizontal fins
Louise Terrien, Benjamin Favier, Edgar Knobloch
The heat transport by rapidly-rotating Rayleigh-Bénard convection is of fundamental importance to many geophysical flows. Laboratory measurements are impeded by robust wall modes w…
Effects of particle size and background rotation on the settling of particle clouds
Quentin Kriaa, Eliot Subra, Benjamin Favier +1
We experimentally investigate the behaviour of instantaneous localised releases of heavy particles falling as turbulent clouds in quiescent water, both with and without background…
Competition between Rayleigh--Bénard and horizontal convection
Louis-Alexandre Couston, Joseph Nandaha, Benjamin Favier
We investigate the dynamics of a fluid layer subject to an imposed bottom heat flux and a top monotonically-increasing temperature profile driving horizontal convection. We use dir…
Localized layers of turbulence in stratified horizontally sheared Poiseuille flow
Joris Labarbe, Patrice Le Gal, Uwe Harlander +2
This article presents a numerical analysis of the instability developing in horizontally sheared Poiseuille flow, when stratification extends along the vertical direction. Our stud…
Spontaneous suppression of inverse energy cascade in instability-driven 2D turbulence
Adrian van Kan, Benjamin Favier, Keith Julien +1
Instabilities of fluid flows often generate turbulence. Using extensive direct numerical simulations, we study two-dimensional turbulence driven by a wavenumber-localised instabili…
Surfing on turbulence: a strategy for planktonic navigation
Rémi Monthiller, Aurore Loisy, Mimi A. R. Koehl +2
In marine plankton, many swimming species can perceive their environment with flow sensors. Can they use this flow information to travel faster in turbulence? To address this quest…
Gas giant-like zonal jets in the laboratory
Daphné Lemasquerier, Benjamin Favier, Michael Le Bars
This paper is associated with a poster winner of a 2019 American Physical Society Division of Fluid Dynamics (DFD) Milton van Dyke Award for work presented at the DFD Gallery of Fl…
Evidence of the Zakharov-Kolmogorov spectrum in numerical simulations of inertial wave turbulence
Thomas Le Reun, Benjamin Favier, Michael Le Bars
Rotating turbulence is commonly known for being dominated by geostrophic vortices that are invariant along the rotation axis and undergo inverse cascade. Yet, it has recently been…
Coupled convection and internal gravity waves excited in water around its density maximum at 4°C
Pierre Léard, Benjamin Favier, Patrice Le Gal +1
Coupled mixed convective and stratified systems are common in natural flows. To study experimentally the associated dynamics, we use a singular property of water: its non-linear eq…
Zonal jets at the laboratory scale: hysteresis and Rossby waves resonance
Daphné Lemasquerier, Benjamin Favier, Michael Le Bars
The dynamics, structure and stability of zonal jets in planetary flows are still poorly understood, especially in terms of coupling with the small-scale turbulent flow. Here, we us…
Topography generation by melting and freezing in a turbulent shear flow
Louis-Alexandre Couston, Eric Hester, Benjamin Favier +3
We report an idealized numerical study of a melting and freezing solid adjacent to a turbulent, buoyancy-affected shear flow, in order to improve our understanding of topography ge…
Bistability in Rayleigh-Bénard convection with a melting boundary
Jhaswantsing Purseed, Benjamin Favier, Laurent Duchemin +1
A pure and incompressible material is confined between two plates such that it is heated from below and cooled from above. When its melting temperature is comprised between these t…
Robust wall states in rapidly rotating Rayleigh-Bénard convection
Benjamin Favier, Edgar Knobloch
We show, using direct numerical simulations with experimentally realizable boundary conditions, that wall modes in Rayleigh-Bénard convection in a rapidly rotating cylinder persist…
Near-resonant instability of geostrophic modes: beyond Greenspan's theorem
Thomas Le Reun, Basile Gallet, Benjamin Favier +1
We explore the near-resonant interaction of inertial waves with geostrophic modes in rotating fluids via numerical and theoretical analysis. When a single inertial wave is imposed,…
Shape and size of large-scale vortices: A generic fluid pattern in geophysical fluid dynamics
Louis-Alexandre Couston, Daniel Lecoanet, Benjamin Favier +1
Planetary rotation organizes fluid motions into coherent, long-lived swirls, known as large-scale vortices (LSVs), which play an important role in the dynamics and long-term evolut…
Experimental study of the non-linear saturation of the elliptical instability: inertial wave turbulence versus geostrophic turbulence
Thomas Le Reun, Benjamin Favier, Michael Le Bars
In this paper, we present an experimental investigation of the turbulent saturation of the flow driven by parametric resonance of inertial waves in a rotating fluid. In our set-up,…
Subcritical turbulent condensate in rapidly rotating Rayleigh-Bénard convection
Benjamin Favier, Céline Guervilly, Edgar Knobloch
The possibility of subcritical behaviour in the geostrophic turbulence regime of rapidly rotating thermally driven convection is explored. In this regime a non-local inverse energy…