71th Annual Meeting of the APS Division of Fluid Dynamics (November 18, 2018 — November 20, 2018)

V0011: Freezing Drop Impact

  • Virgile Thievenaz, Institut d'Alembert, CNRS, Sorbonne Universite, Paris, France
  • Thomas Seon, Institut d'Alembert, CNRS, Sorbonne Universite, Paris, France
  • Christophe Josserand, LadHyX, CNRS, Ecole Polytechnique, Paris, France

When an airplane crosses a cloud, it is impacted by multiple drops. They may freeze and form a thick layer of ice on the plane, which causes a reduction of the lift, an increase in the drag, and perturbation of the instruments. In the lab, we study the impact of a single drop of water on a supercooled substrate, and how the freezing pertubates it. We explore different cases: at room temperature, the drop impacts and retracts. For sub-zero temepratures, patterns can be formed as the drop retracts as it freezes. For the coldest temperatures, the freezing can even induce splashing.



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