From antinode clusters to node clusters: The concentration dependent transition, of floaters on a standing Faraday wave

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Abstract

A hydrophilic floating sphere that is denser than water drifts to an amplitude maximum (antinode) of a surface standing wave. A few identical floaters therefore organize into antinode clusters. However, beyond a transitional value of the floater concentration ϕ , we observe that the same spheres spontaneously accumulate at the nodal lines, completely inverting the self-organized particle pattern on the wave. From a potential energy estimate we show (i) that at low ϕ antinode clusters are energetically favorable over nodal ones and (ii) how this situation reverses at high ϕ , in agreement with the experiment.
Original languageEnglish
Article number053011
Number of pages9
JournalPhysical review E: Statistical, nonlinear, and soft matter physics
Volume89
Issue number053011
DOIs
Publication statusPublished - 2014

Keywords

  • IR-90665
  • METIS-303537

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