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28 papers · 1 filter
Universal amplitudes of the Casimir-like interactions between four types of rods in fluid membranes
Anne-Florence Bitbol, Kévin Sin Ronia, Jean-Baptiste Fournier
The fluctuation-induced, Casimir-like interaction between two parallel rods of length L adsorbed on a fluid membrane is calculated analytically at short separations d<<L. The rods…
Twisting and buckling: a new undulation mechanism for artificial swimmers
Ghani Oukhaled, Andrejs Cebers, Jean-Claude Bacri +2
We present an artificial swimmer consisting in a long cylinder of ferrogel which is polarized transversely and in opposite directions at each extremity. When it is placed on a wate…
Enhanced and reduced transmission of acoustic waves with bubble meta-screens
Alice Bretagne, Arnaud Tourin, V. Leroy
We present a class of sonic meta-screens for manipulating air-borne acoustic waves at ultrasonic or audible frequencies. Our screens consist of periodic arrangements of air bubbles…
Instability of the origami of a ferrofluid drop in a magnetic field
Timothée Jamin, Charlotte Py, Eric Falcon
Capillary origami is the wrapping of an usual fluid drop by a planar elastic membrane due to the interplay between capillary and elastic forces. Here, we use a drop of magnetic flu…
Experimental study of the inverse cascade in gravity wave turbulence
Luc Deike, Claude Laroche, Eric Falcon
We perform experiments to study the inverse cascade regime of gravity wave turbulence on the surface of a fluid. Surface waves are forced at an intermediate scale corresponding to…
Momentum transfer in non-equilibrium steady states
Antoine Fruleux, Ryoichi Kawai, Ken Sekimoto
When a Brownian object interacts with non-interacting gas particles under non-equilibrium conditions, the energy dissipation associated to the Brownian motion causes an additional…