9.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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15 papers · 2 filters
Kolmogorovian active turbulence of a sparse assembly of interacting swimmers
Mickael Bourgoin, Ronan Kervil, Cecile Cottin-Bizonne +3
Active matter, composed of self-propelled entities, forms a wide class of out-of-equilibrium systems that display striking collective behaviors among which the so-called active tur…
Energy budget in internal wave attractors experiment
Géraldine Davis, Thierry Dauxois, Timothée Jamin +1
The current paper presents an experimental study of the energy budget of a two-dimensional internal wave attractor in a trapezoidal domain filled with uniformly stratified fluid. T…
Internal Wave Attractors in 3D Geometries : a dynamical systems approach
Grimaud Pillet, Leo Maas, Thierry Dauxois
We study the propagation in three dimensions of internal waves using ray tracing methods and traditional dynamical systems theory. The wave propagation on a cone that generalizes t…
Scaling laws in axisymmetric magnetohydrodynamic duct flows
A. Poyé, O. Agullo, N. Plihon +3
We report on a numerical study of axisymmetric flow of liquid metal in a circular duct with rectangular cross-section. The flow is forced through the combination of an axial magnet…
Single-particle Lagrangian statistics from direct numerical simulations of rotating-stratified turbulence
Dhawal Buaria, Alain Pumir, Fabio Feraco +4
Geophysical fluid flows are predominantly turbulent and often strongly affected by the Earth's rotation, as well as by stable density stratification. Using direct numerical simulat…
Analysis of the dissipative range of the energy spectrum in grid turbulence and in direct numerical simulations
Anastasiia Gorbunova, Guillaume Balarac, Mickaël Bourgoin +3
We present a statistical analysis of the behavior of the kinetic energy spectrum in the dissipative range of scales of fully developed three-dimensional turbulence. We analyze spec…
Diffusiophoresis, Batchelor scale and effective Péclet numbers
Florence Raynal, Romain Volk
We study the joint mixing of colloids and salt released together in a stagnation point or in a globally chaotic flow. In the presence of salt inhomogeneities, the mixing time is st…
Observation of the resonance frequencies of a stable torus of fluid
Claude Laroche, Jean-Claude Bacri, Martin Devaud +2
We report the first quantitative measurements of the resonance frequencies of a torus of fluid confined in a horizontal Hele-Shaw cell. By using the unwetting property of a metal l…
Axisymmetric internal wave transmission and resonance in non-linear stratifications
Samuel Boury, Philippe Odier, Thomas Peacock
To date, the influence of non-linear stratifications and two layer stratifications on internal wave propagation has been studied for two-dimensional wave fields in a cartesian geom…
Importance of fluid inertia for the orientation of spheroids settling in turbulent flow
Muhammad Zubair Sheikh, Kristian Gustavsson, Diego Lopez +4
How non-spherical particles orient as they settle in a flow has important practical implications in a number of scientific and engineering problems. In a quiescent fluid, a slowly…
Theory for the effect of fluid inertia on the orientation of a small particle settling in turbulence
K. Gustavsson, M. Z. Sheikh, D. Lopez +3
Ice crystals settling through a turbulent cloud are rotated by turbulent velocity gradients. In the same way, turbulence affects the orientation of aggregates of organic matter set…
Linear and nonlinear regimes of an inertial wave attractor
Maxime Brunet, Thierry Dauxois, Pierre-Philippe Cortet
We present an experimental analysis of the linear and non-linear regimes of an attractor of inertial waves in a trapezoidal cavity under rotation. Varying the rotation rate and the…
Extreme velocity gradients in turbulent flows
Dhawal Buaria, Alain Pumir, Eberhard Bodenschatz +1
Fully turbulent flows are characterized by intermittent formation of very localized and intense velocity gradients. These gradients can be orders of magnitude larger than their typ…
Effective interfacial tension in flow-focusing of colloidal dispersions: 3D numerical simulations and experiments
Krishne Gowda., Christophe Brouzet, Thibault Lefranc +2
An interface between two miscible fluids is transient, existing as a non-equilibrium state before complete molecular mixing is reached. However, during the existence of such an int…
Periodicity disruption of a model quasi-biennial oscillation
Antoine Renaud, Louis-Philippe Nadeau, Antoine Venaille
The quasi-biennial oscillation (QBO) of equatorial winds on Earth is the clearest example of the spontaneous emergence of a periodic phenomenon in geophysical fluids. In recent yea…