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6 papers · 2 filters
The glass transition in a nutshell: a source of inspiration to describe the subcritical transition to turbulence
Olivier Dauchot, Eric Bertin
The starting point of the present work is the observation of possible analogies, both at the phenomenological and at the methodological level, between the subcritical transition to…
Elastic swimmer on a free surface
Sophie Ramananarivo, Benjamin Thiria, Ramiro Godoy-Diana
We present in this fluid dynamics video a novel experimental setup with self-propelled swimmers on a free surface. The swimmers, modeled as flexible thin filaments, are subjected t…
Kelvin wake pattern at large Froude numbers
Alexandre Darmon, Michael Benzaquen, Elie Raphaël
Gravity waves generated by an object moving at constant speed at the water surface form a specific pattern commonly known as the Kelvin wake. It was proved by Lord Kelvin that such…
Experimental study of Counter-Rotating Vortex Pair Trajectories induced by a Round Jet in Cross-Flow at Low Velocity Ratios
T. Cambonie, N. Gautier, J. -L. Aider
Circular flush Jets In Cross-Flow were experimentally studied in a water tunnel using Volumetric Particle Tracking Velocimetry, for a range of jet to cross-flow velocity ratios, r,…
Mutual adaptation of a Faraday instability pattern with its flexible boundaries in floating fluid drops
Giuseppe Pucci, Emmanuel Fort, Martine Ben Amar +1
Hydrodynamic instabilities are usually investigated in confined geometries where the resulting spatiotemporal pattern is constrained by the boundary conditions. Here we study the F…
Supershear Rayleigh waves at a soft interface
Anne Le Goff, Pablo Cobelli, Guillaume Lagubeau
We report on the experimental observation of waves at a liquid foam surface propagating faster than the bulk shear waves. The existence of such waves has long been debated, but the…