laboratoire de physique statistique
 
 
laboratoire de physique statistique

Publications

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Guillaume MICHEL 


2
P U B L I C A T I O N S

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2016
Acoustic Measurement of Surface Wave Damping by a Meniscus - Michel, Guillaume and Petrelis, Francois and Fauve, Stephan
PHYSICAL REVIEW LETTERS 116 (2016) 
LPS


Abstract : We investigate the reflection of gravity-capillary surface waves by a plane vertical barrier. The size of the meniscus is found to strongly affect reflection: the energy of the reflected wave with a pinned contact line is around twice the one corresponding to a fully developed meniscus. To perform these measurements, a new experimental setup similar to an acousto-optic modulator is developed and offers a simple way to measure the amplitude, frequency and direction of propagation of surface waves.
Bifurcations of a large-scale circulation in a quasi-bidimensional turbulent flow - Michel, G. and Herault, J. and Petrelis, F. and Fauve, S.
EPL 115 (2016) 
LPS


Abstract : We report the experimental study of the bifurcations of a large-scale circulation that is formed over a turbulent flow generated by a spatially periodic forcing. After shortly describing how the flow becomes turbulent through a sequence of symmetry-breaking bifurcations, we focus our study on the transitions that occur within the turbulent regime. They are related to changes in the shape of the probability density function (PDF) of the amplitude of the large-scale flow. We discuss the nature of these bifurcations and how to model the shape of the PDF. Copyright (C) EPLA, 2016