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Startseite > Séminaires > Archives séminaires > Séminaires 2016 > Séminaire MSC. 28 novembre 2016. Antonin Eddi (PMMH, ESPCI) :"Experimental approach of Hydro-elastic waves".

Séminaire MSC. 28 novembre 2016. Antonin Eddi (PMMH, ESPCI) :"Experimental approach of Hydro-elastic waves"

Sauf mention contraire, les séminaires et les soutenances se déroulent à 11h30 en salle 454A du bâtiment Condorcet.

Experimental approach of Hydro-elastic waves

Antonin Eddi Laboratoire PMMH – UMR 7636 CNRS and ESPCI ParisTech

Abstract : Hydro-elastic waves (HEW) appear at very large scale in the marginal ice zone where the ocean is covered by a thin layer of ice. The physics of HEW is dominated by the bending elasticity of the thin sheet covering the liquid, but their propagation is much slower than plate (Lamb) waves thanks to the fluid inertia. In this seminar, I will describe our experimental approach of HEW. I will first focus on the typically parameter range in which they can be observed at the laboratory scale. In a second step, I will present experimental results about the hydro-elastic Faraday instability obtained by vertically forcing the liquid container. Last, I will show that HEW open promising possibilities for wave control. In particular, I will present experimental configurations that allow for building an HEW-based "optics", revisiting Snell’s law, geometrical optics and Fourier optics in an hydrodynamical experiment.