Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR3.4k papers
- Lyon 1 UniversitéFR2k papers
- Centre de Recherche Astrophysique de LyonFR1.3k papers
- Laboratoire de Physique de l'ENS de LyonFR1.3k papers
- Université de LyonFR537 papers
- Unité de Mathématiques Pures et AppliquéesFR399 papers
- European Southern ObservatoryCL328 papers
- Laboratoire de l'Informatique du ParallélismeFR328 papers
- Sorbonne UniversitéFR283 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR269 papers
- Université Grenoble AlpesFR236 papers
- Institut national de recherche en sciences et technologies du numériqueFR233 papers
21 papers · 2 filters
Experimental self-generation of axisymmetric internal wave super-harmonics
Samuel Boury, Thomas Peacock, Philippe Odier
In this paper, we present an experimental study of weakly non-linear interaction of axisymmetric internal gravity waves in a resonant cavity, supported by theoretical consideration…
Variational Mode Decomposition for estimating critical reflected internal wave in stratified fluid
Ernesto Horne, Jeremy Schmitt, Nelly Pustelnik +2
The shear resulting from internal wave reflections can play a crucial role in the transport and resuspension of sediments in oceanic conditions. In particular, when these waves und…
Rare event-triggered transitions in aerodynamic bifurcation
Ariane Gayout, Mickaël Bourgoin, Nicolas Plihon
The transitions between two states of a bistable system are investigated experimentally and analyzed in the framework of rare-event statistics. Considering a disk pendulum swept by…
Wave topology brought to the coast
Antoine Venaille, Pierre Delplace
Since the pioneering work of Kelvin on Laplace tidal equations, a zoology of trapped waves have been found in the context of coastal dynamics. Among them, the one originally comput…
Clustering of vector nulls in homogeneous isotropic turbulence
D. O. Mora, M. Bourgoin, P. D. Mininni +1
We analyze the vector nulls of velocity, Lagrangian acceleration, and vorticity, coming from direct numerical simulations of forced homogeneous isotropic turbulence at $Re_λ\in [40…
Manifestation of Berry curvature in geophysical ray tracing
Nicolas Perez, Pierre Delplace, Antoine Venaille
Geometrical phases, such as the Berry phase, have proven to be powerful concepts to understand numerous physical phenomena, from the precession of the Foucault pendulum to the quan…
Self-attenuation of extreme events in Navier-Stokes turbulence
Dhawal Buaria, Alain Pumir, Eberhard Bodenschatz
Turbulent fluid flows are ubiquitous in nature and technology, and are mathematically described by the incompressible Navier-Stokes equations (INSE). A hallmark of turbulence is sp…
Vortex cluster arising from an axisymmetric inertial wave attractor
Samuel Boury, Ilias Sibgatullin, Evgeny Ermanyuk +5
We present an experimental study of the saturated non-linear dynamics of an inertial wave attractor in an axisymmetric geometrical setting. The experiments are carried out in a rot…
Effect of particle inertia on the alignment of small ice crystals in turbulent clouds
K. Gustavsson, M. Z. Sheikh, A. Naso +2
Small non-spherical particles settling in a quiescent fluid tend to orient so that their broad side faces down, because this is a stable fixed point of their angular dynamics at sm…
Simulating turbulent mixing caused by local instability of internal gravity waves
Y. Onuki, S. Joubaud, T. Dauxois
With the aim of assessing internal wave-driven mixing in the ocean, we develop a new technique for direct numerical simulations of stratified turbulence. Since the spatial scale of…
Droplet impact on surfaces with asymmetric microscopic features
Susumu Yada, Blandine Allais, Wouter van der Wijngaart +3
The impact of liquid drops on a rigid surface is central in cleaning, cooling and coating processes in both nature and industrial applications. However, it is not clear how details…
An effective two-dimensional model for MHD flows with transverse magnetic field
Alban Pothérat, Joël Sommeria, René Moreau
This paper presents a model for quasi two-dimensional MHD flows between two planes with small magnetic Reynolds number and constant transverse magnetic field orthogonal to the plan…
2D models for MHD flows
Alban Pothérat, Joël Sommeria, René Moreau
A new model is proposed for low MHD flows which remain turbulent even in the presence of a magnetic field. These flows minimize the Joule dissipation because of their tendency…
Effective boundary conditions for magnetohydrodynamic flows with thin Hartmann layers
Alban Pothérat, Joël Sommeria, René Moreau
Here we build some effective boundary conditions to be used in numerical calculations in order to avoid the thin meshing usually required in problems involving Hartmann layers near…
Vortex stretching and enstrophy production in high Reynolds number turbulence
Dhawal Buaria, Eberhard Bodenschatz, Alain Pumir
An essential ingredient of turbulent flows is the vortex stretching mechanism, which emanates from the non-linear interaction of vorticity and strain-rate tensor and leads to forma…
Inertial torque on a small spheroid in a stationary uniform flow
F. Jiang, L. Zhao, H. I. Andersson +3
How anisotropic particles rotate and orient in a flow depends on the hydrodynamic torque they experience. Here we compute the torque acting on a small spheroid in a uniform flow by…
Succession of resonances to achieve internal wave turbulence
Géraldine Davis, Timothée Jamin, Julie Deleuze +2
We study experimentally the interaction of nonlinear internal waves in a stratified fluid confined in a trapezoidal tank. The set-up has been designed to produce internal wave turb…
Axisymmetric dynamo action is possible with anisotropic conductivity
Franck Plunian, Thierry Alboussière
A milestone of dynamo theory is Cowling's theorem, known in its modern form as the impossibility for an axisymmetric velocity field to generate an axisymmetric magnetic field by dy…
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…
Probability Density Functions in Homogeneous and Isotropic Magneto-Hydrodynamic Turbulence
J. Friedrich
We derive a hierarchy of evolution equations for multi-point probability density functions in magneto-hydrodynamic (MHD) turbulence. We discuss the relation to the moment hierarchy…
On the Holton-Lindzen-Plumb model for mean flow reversals in stratified fluids
Antoine Renaud, Antoine Venaille
The Holton-Lindzen-Plumb model describes the spontaneous emergence of mean flow reversals in stratified fluids. It has played a central role in understanding the quasi-biennial osc…