Levitation and Self-Organization of Liquid Microdroplets over Dry Heated Substrates

Dmitry V. Zaitsev, Dmitry P. Kirichenko, Vladimir S. Ajaev, Oleg A. Kabov

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16 Citations (Scopus)

Abstract

Levitating droplets of liquid condensate are known to organize themselves into ordered arrays over hot liquid-gas interfaces. We report experimental observation of similar behavior over a dry heated solid surface. Even though the lifetime of the array is shorter in this case, its geometric characteristics are remarkably similar to the case of droplets levitating over liquid-gas interfaces. A simple model is developed that predicts the mechanisms of both droplet levitation and interdroplet interaction leading to pattern formation over a dry surface; the model is shown to be in good agreement with the experimental data. Using the insights from the new experiments, we are able to resolve some long-standing controversies pertaining to the mechanism of levitation of droplets over liquid-gas interfaces.

Original languageEnglish
Article number094503
JournalPhysical Review Letters
Volume119
Issue number9
DOIs
Publication statusPublished - 31 Aug 2017

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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