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
1В Novosibirsk State University, Novosibirsk, Russia
2В Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
3В 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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