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Nelin. Dinam., 2017, Volume 13, Number 2, Pages 165–179 (Mi nd558)  

Original papers

Limitationofthecontactangleintheproblemofadropofaliquidonavibrating substrate

A. A. Chernova

Institute of Mechanics Ural Branch of the Russian Academy of Sciences, ul. T.Baramzinoi, 34, Izhevsk, 426067, Russia

Abstract: The article deals with the process of fluctuations of a liquid droplet of a small volume lying on a vibrating hydrophobic rigid substrate. The study is carried out by the numerical simulation method of Euler fluid volume (Volume of Fluid — VoF). We study problems of accounting for dynamic changes in the contact angle at the triple point of the liquid-substrate-to-air as well as the impact of changes in the range of the contact angle on the processes that accompany the forced oscillations of the drop. Particular attention is paid to topological features formed in a drop of internal flows. The connection between the interaction of different surface effects, transformation of internal flows, the size limit changes in the contact angle of the substrate and the phase fluctuations are considered in detail. All numerical results are compared with experimental data.

Keywords: oscillations of a liquid droplet, free surface, volume of fluid method, internal flow, contact angle

Funding Agency Grant Number
Russian Foundation for Basic Research 16-38-00127 мол_a
Russian Academy of Sciences - Federal Agency for Scientific Organizations 15-7-1-11


DOI: https://doi.org/10.20537/nd1702002

Full text: PDF file (2892 kB)
References: PDF file   HTML file

UDC: 519.63/532.5
MSC: 76D27, 76M25
Received: 17.01.2017
Accepted:10.03.2017

Citation: A. A. Chernova, “Limitationofthecontactangleintheproblemofadropofaliquidonavibrating substrate”, Nelin. Dinam., 13:2 (2017), 165–179

Citation in format AMSBIB
\Bibitem{Che17}
\by A.~A.~Chernova
\paper Limitationofthecontactangleintheproblemofadropofaliquidonavibrating substrate
\jour Nelin. Dinam.
\yr 2017
\vol 13
\issue 2
\pages 165--179
\mathnet{http://mi.mathnet.ru/nd558}
\crossref{https://doi.org/10.20537/nd1702002}
\elib{http://elibrary.ru/item.asp?id=29443375}


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