On the role of capillary waves in the mechanism of coalescence of a droplet cluster

A. A. Fedorets, I. V. Marchuk, O. A. Kabov

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Packets of capillary waves on the surface of a horizontal water layer generated at coalescence with a layer of microdroplets (with a characteristic diameter of 50-100 μm) of the dissipative structure "droplet cluster" have been detected by high-speed video recording and the schlieren method. The shortest experimentally observed waves have a length of about 130 μm and their phase velocity exceeds 1.8 m/s. It has been found that the coalescence of a single drop initiates a self-sustained wave process, which induces the coalescence of hundreds of droplets in a time shorter than 1 ms, which form a cluster.

Original languageEnglish
Pages (from-to)266-269
Number of pages4
JournalJETP Letters
Issue number5
Publication statusPublished - 1 Jan 2014


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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