69th Annual Meeting of the APS Division of Fluid Dynamics (November 20, 2016 — November 22, 2016)

V0099: Galaxy-like organization of floaters on Faraday waves

Authors

• Hector Alarcón, Physics Department, Faculty of Physical and Mathematical Sciences, Universidad de Chile, Santiago de Chile
• Nicolas Perinet, Physics Department, Faculty of Physical and Mathematical Sciences, Universidad de Chile, Santiago de Chile
• Nicolás Mujica, Physics Department, Faculty of Physical and Mathematical Sciences, Universidad de Chile, Santiago de Chile
• Leonardo Gordillo, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis
• Pablo Gutiérrez, Physics Department, Faculty of Physical and Mathematical Sciences, Universidad de Chile, Santiago de Chile

DOI: https://doi.org/10.1103/APS.DFD.2016.GFM.V0099

This video is about agglomeration of (micro-metric) particles floating on the surface of sub-harmonic (Faraday) waves. Agglomeration of floating objects appears in nature at different scales: plankton, organic residues, and garbage, all relevant for the oceanic ecosystem. 

In our experiments, we observe galaxy-like patters of agglomerated floaters. After giving the context of the study, we show our experimental observations and we present some ideas of how they patterns appear.