Faraday Waves on a Viscoelastic Liquid

C. Wagner; H. W. Müller; K. Knorr

doi:10.1103/PhysRevLett.83.308

Faraday Waves on a Viscoelastic Liquid

C. Wagner, H. W. Müller, and K. Knorr

Phys. Rev. Lett. 83, 308 – Published 12 July 1999

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 preempts the usual subharmonic Faraday instability. Close to the bicriticality, the nonlinear wave interaction gives rise to a variety of novel surface states: sharply localized islands of hexagons or superlattices and hexagons or superlattices coexisting with line patterns of a different spatial periodicity length. Theoretical stability calculations on the basis of the rheometric viscosity data and qualitative resonance arguments support the experimental observations.

Received 9 November 1998

DOI:https://doi.org/10.1103/PhysRevLett.83.308

Authors & Affiliations

C. Wagner¹, H. W. Müller^2,3, and K. Knorr¹

¹Institut für Technische Physik, Universität des Saarlandes, Postfach 151150, D-66041 Saarbrücken, Germany
²Institut für Theoretische Physik, Universität des Saarlandes, Postfach 151150, D-66041 Saarbrücken, Germany
³Max Planck Institut für Polymerforschung, Ackermannweg 10, D-55128 Mainz, Germany