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

V0037: Equatorial-Streaming

  • Quentin Brosseau, Brown University - School of engineering
  • Petia Vlahovska, Brown University - School of engineering
DOI: https://doi.org/10.1103/APS.DFD.2016.GFM.V0037

We present a new streaming-like instability, triggered by electrohydrodynamic coupling at a millimeter size drop interface. "Equatorial-streaming" proceeeds via emission of micrometric saturn-like rings in the drop equatorial plane. The rings later destabilize in a chain of monodisperse droplets following Plateau-Rayleigh instability.  This process, beyond its geometrical elegance could be of interests for new "Electroemulsification" methods. 



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