70th Annual Meeting of the APS Division of Fluid Dynamics (November 19, 2017 — November 21, 2017)

P0035: Universal nanodroplet branches from confining the Ouzo effect

Authors
  • Martin H. Klein Schaarsberg, Physics of Fluids Group, Max Planck Center Twente, J. M. Burgers Centre for Fluid Dynamics, University of Twente, 7500 AE Enschede, The Netherlands
  • Ziyang Lu, School of Engineering, Royal Melbourne Institute of Technology University, Melbourne, VIC 3001, Australia
  • Xiaojue Zhu, Physics of Fluids Group, Max Planck Center Twente, J. M. Burgers Centre for Fluid Dynamics, University of Twente, 7500 AE Enschede, The Netherlands
  • Leslie Y. Yeo, School of Engineering, Royal Melbourne Institute of Technology University, Melbourne, VIC 3001, Australia
  • Detlef Lohse, Physics of Fluids Group, Max Planck Center Twente, J. M. Burgers Centre for Fluid Dynamics, University of Twente, 7500 AE Enschede, The Netherlands; Max Planck Institute for Dynamics and Self-Organization, 37077 Goettingen, Germany
  • Xuehua Zhang, School of Engineering, Royal Melbourne Institute of Technology University, Melbourne, VIC 3001, Australia; Physics of Fluids Group, Max Planck Center Twente, J. M. Burgers Centre for Fluid Dynamics, University of Twente, 7500 AE Enschede, The Netherlands
DOI: https://doi.org/10.1103/APS.DFD.2017.GFM.P0035

Pour some water into your glass of ouzo, and the beverage will change from
transparent to milky. We demonstrate that the oil nanodroplets self-organize in universal branching patterns when the ʻOuzo effectʼ is confined to a quasi-2D geometry. The formation of these nanodroplet branching patterns is governed by the interplay between the local concentration gradient, diffusion, and collective interactions. Pictured is a visualization of the autonomous motion of colloidal particles driven by local concentration gradients around the droplet branch structure.

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