Faraday waves on a viscoelastic liquid

C. Wagner; H. W. Mueller; K. Knorr

doi:10.1103/physrevlett.83.308

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arXiv · patt-sol/9811004

Faraday waves on a viscoelastic liquid

C. Wagner·H. W. Mueller·K. Knorr

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Abstract

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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C. Wagner, H. W. Mueller, K. Knorr. 1998-11-16. Faraday waves on a viscoelastic liquid. https://doi.org/10.1103/physrevlett.83.308

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