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Leidenfrost drops

Abstract : A Leidenfrost drop forms when a volatile liquid is brought in contact with a very hot solid. Then, a vapor film comes in between the solid and the drop, giving to the latter the appearance of a liquid pearl. After a brief description of the shape of a Leidenfrost drop, we show that its size cannot exceed a certain value. Then, we describe the characteristics of the vapor layer on which it floats. We show how it is related to the drop size, and how both vary with time, as evaporation takes place. We finally deduce scaling laws for the lifetime of these drops.
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Submitted on : Wednesday, November 30, 2005 - 10:07:00 AM
Last modification on : Thursday, March 10, 2022 - 3:58:07 PM




Anne-Laure Biance, Christophe Clanet, David Quéré. Leidenfrost drops. Physics of Fluids, American Institute of Physics, 2003, 15, n° 6, pp.1632 - 1637. ⟨10.1063/1.1572161⟩. ⟨hal-00014747⟩



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