Faraday waves on a viscoelastic liquid

Details Faraday waves on a viscoelastic liquid Faraday waves on a viscoelastic liquid

1998-11-16

arxiv.org/abs/patt-sol/9811004v1

Nonlinear Sciences

Pattern Formation and Solitons

4 pages, 4figures

Scientific paper

10.1103/PhysRevLett.83.308

We investigate Faraday waves on a viscoelastic liquid. Onset measurements and a nonlinear phase diagram for the selected patterns are presented. By virtue of the elasticity of the material a surface resonance synchronous to the external drive competes with the usual subharmonic Faraday instability. Close to the bicriticality the nonlinear wave interaction gives rise to a variety of novel surface states: Localised patches of hexagons, hexagonal superlattices, coexistence of hexagons and lines. Theoretical stability calculations and qualitative resonance arguments support the experimental observations.

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