University of Cambridge > > Fluids Group Seminar (CUED) > A laboratory approach of Hydro-elastic waves

A laboratory approach of Hydro-elastic waves

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  • UserDr. Antonin Eddi (ESPCI)
  • ClockFriday 17 June 2022, 12:30-13:30
  • HouseCUED, LT6.

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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 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. Last, I will describe HEW propagation in periodically structured media, revealing the emergence of band gaps and Dirac points.

This talk is part of the Fluids Group Seminar (CUED) series.

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