Experimental investigation of liquid drop
evaporation on a heated solid surface
A.A. Semenov1,2, D.V. Feoktistov3, D.V. Zaitsev2, G.V. Kuznetsov3, and O.A. Kabov1,2,3
1 Novosibirsk State University, Novosibirsk, Russia
2 Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
3 Tomsk Polytechnic University, Tomsk, Russia
E-mail: semenov.itp@gmail.com, zaitsev@itp.nsc.ru
Keywords: evaporation, contact angle, three-phase contact line
Pages: 771–774
Abstract
Evaporation
of a water drop was studied experimentally at a temperature
difference between the solid surface and surrounding atmosphere from 30 to
60 °C. The studies were performed on the substrates with micro-
and nanocoatings with different wettability. The features
of evaporation were studied for the pinned, partially pinned, and depinned
three-phase contact line (solid-liquid-gas interface). It is shown that with a decrease in
the water drop volume, the specific evaporation rate (mass flow per
unit of surface area) increases, particularly at the last stage
of evaporation.
DOI: 10.1134/S086986431506013X
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