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Article Dans Une Revue Physics of Fluids Année : 2015

Hole growth dynamics in a two dimensional Leidenfrost droplet

Résumé

We studied the behaviors of Leidenfrost droplets confined in a Hele-Shaw cell. These droplets are unstable above a critical size and a hole grows at their center. We experimentally investigate two different systems for which the hole growth dynamics exhibits peculiar features that are driven by capillarity and inertia. We report a first regime characterized by the liquid reorganization from a liquid sheet to a liquid torus with similarities to the burst of micron-thick soap films. In the second regime the liquid torus expands and thins before fragmentation. Finally we propose models to account for the experimental results.
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Dates et versions

hal-01211360 , version 1 (05-10-2015)

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Christophe Raufaste, Franck Celestini, Alexandre Barzyk, Thomas Frisch. Hole growth dynamics in a two dimensional Leidenfrost droplet. Physics of Fluids, 2015, 27 (3), pp.031704. ⟨10.1063/1.4916622.1⟩. ⟨hal-01211360⟩
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