Levitation of Liquid Microdroplets above A Solid Surface Subcooled to the Leidenfrost Temperature

Abstract

Evaporation of liquid microdroplets that fall on a solid surface with the temperature of below the Leidenfrost temperature is studied. It has been found out that sufficiently small liquid droplets of about 10 microns can suspend at some distance from the surface (levitate) and do not reach the surface; at that, the rate of droplet evaporation is reduced by an order as compared to microdroplets, which touch the surface. It is determined that in contrast to microdroplets, which touch the surface, the specific evaporation rate of levitating droplets is constant in time.

Original language	English
Article number	01046
Journal	MATEC Web of Conferences
Volume	72
DOIs	https://doi.org/10.1051/matecconf/20167201046
Publication status	Published - 9 Aug 2016

ASJC Scopus subject areas

Chemistry(all)
Engineering(all)
Materials Science(all)

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10.1051/matecconf/20167201046

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Kirichenko, D. P., Zaitsev, D. V., & Kabov, O. A. (2016). Levitation of Liquid Microdroplets above A Solid Surface Subcooled to the Leidenfrost Temperature. MATEC Web of Conferences, 72, [01046]. https://doi.org/10.1051/matecconf/20167201046

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AB - Evaporation of liquid microdroplets that fall on a solid surface with the temperature of below the Leidenfrost temperature is studied. It has been found out that sufficiently small liquid droplets of about 10 microns can suspend at some distance from the surface (levitate) and do not reach the surface; at that, the rate of droplet evaporation is reduced by an order as compared to microdroplets, which touch the surface. It is determined that in contrast to microdroplets, which touch the surface, the specific evaporation rate of levitating droplets is constant in time.

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