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

V0045: Leidenfrost droplets between a hot and a cold plate

Authors
  • Stephan Weiss, Max Planck Institute f. Dynamics and Self-Organization, Göttingen, Germany
  • Prasanth Prabhakaran, Max Planck Institute f. Dynamics and Self-Organization, Göttingen, Germany
  • Alexei Krekhov, Max Planck Institute f. Dynamics and Self-Organization, Göttingen, Germany
  • Eberhard Bodenschatz, Max Planck Institute f. Dynamics and Self-Organization, Göttingen, Germany
DOI: https://doi.org/10.1103/APS.DFD.2017.GFM.V0045

We observe droplet pattern in a 0.5 mm thin layer of sulphur hexalfuoride (SF6), heated from below and cooled from above. SF6 vapor condenses at the top plate and forms droplets that are falling down. Under certain conditions, droplets do not reach the bottom but are "floating" due to the Leidenfrost effect on a thin vapor layer.
 

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