Faraday wave lattice as an elastic metamaterial

L. Domino, M. Tarpin, S. Patinet, and A. Eddi ; Phys. Rev. E 93, 050202(R), (2016)

Metamaterials enable the emergence of novel physical properties due to the existence of an underlying subwavelength structure. Here, we use the Faraday instability to shape the fluid-air interface with a regular pattern. This pattern undergoes an oscillating secondary instability and exhibits spontaneous vibrations that are analogous to transverse elastic waves. By locally forcing these waves, we fully characterize their dispersion relation and show that a Faraday pattern presents an effective shear elasticity. We propose a physical mechanism combining surface tension with the Faraday structured interface that quantitatively predicts the elastic wave phase speed, revealing that the liquid interface behaves as an elastic metamaterial.


Top



See also...

Texture-driven elastohydrodynamic bouncing

Thibault Chastel, Philippe Gondret and Anne Mongruel: Journal of Fluid Mechanics, Volume 805 October 2016, pp. 577-590 We investigate in detail (...) 

> More...

A non-local rheology for granular flows across yield conditions

M. Bouzid, M. Trulsson, P. Claudin, E. Clément and B. Andreotti, Phys. Rev. Lett. 111, 238301 (2013). The rheology of dense granular flows is (...) 

> More...

 

Practical information

Laboratoire : 01 40 79 45 22
Directeur : Damien Vandembroucq
Codirecteur : Philippe Petitjeans
Administratrice : Frédérique Auger (01 40 79 45 22)
Gestionnaire : Claudette Barez (01 40 79 58 53)
Courriel : dir (arobase) pmmh.espci.fr

Nous rendre visite