68th Annual Meeting of the APS Division of Fluid Dynamics (November 22, 2015 — November 24, 2015)

V0080: Drop impact on flexible fiber

  • Emilie Dressaire, NYU Polytechnic School of Engineering
  • Alban Sauret, SVI (CNRS/Saint-Gobain)
  • Francois Boulogne, Princeton University
  • Howard Stone, Princeton University
DOI: https://doi.org/10.1103/APS.DFD.2015.GFM.V0080

When droplets impact fibrous media, the liquid can be captured by the fibers or break away. The efficiency of drop capture by a rigid fiber depends on the impact velocity: there is a threshold velocity above which the drop is released. However, the capture or release of a droplet impacting a flexible fiber depends on elastic and capillary effects. Our results demonstrate that the threshold velocity depends on the flexibility of fibers in a non-monotonic way. Tuning the mechanical properties of fibers can optimize the efficiency of drop capture.

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