| Issue |
EPL
Volume 112, Number 2, October 2015
|
|
|---|---|---|
| Article Number | 26002 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/112/26002 | |
| Published online | 16 November 2015 | |
Successive instabilities of confined Leidenfrost puddles
1 PMMH, UMR 7636, ESPCI - 75005 Paris, France LadHyX, UMR 7646 École polytechnique - 91128 Palaiseau, France
Received: 24 July 2015
Accepted: 14 October 2015
A Leidenfrost drop confined between two hot plates is unstable, if large enough. After a short delay to build a central vapor pocket, it forms a ring which rapidly expands and eventually bursts. We analyze this sequence of instabilities theoretically, and show that the ring size increases in a non-linear manner as a function of time, in agreement with experiments.
PACS: 68.03.Cd – Surface tension and related phenomena / 68.03.Fg – Evaporation and condensation of liquids / 47.55.D- – Drops and bubbles
© EPLA, 2015
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