| Issue |
MATEC Web Conf.
Volume 92, 2017
Thermophysical Basis of Energy Technologies (TBET-2016)
|
|
|---|---|---|
| Article Number | 01026 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/matecconf/20179201026 | |
| Published online | 21 December 2016 | |
Use of levitating liquid micro-droplets as tracers to study the evaporation in the vicinity of the contact line
1 Institute of Thermophysics, 630090 Novosibirsk, Russia
2 National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
3 Novosibirsk State University, 630090 Novosibirsk, Russia
* Corresponding author: zaitsev@itp.nsc.ru
Self-organization of a cloud of liquid micro-droplets into an ordered two-dimensional array, levitating over a heated layer of liquid due to upward vapor flow, has been observed in several recent experimental works. In the present paper, the levitating micro-droplet array is studied under the condition when the liquid layer ruptures and a dry spot form on the heater. It has been found, that when the levitating micro-droplets are moving from wetted heater area to dry heater area and passing over the contact line, the micro-droplets levitation height is drastically increased, which is indicative of the intensive evaporation occurring in the region of the contact line.
© The Authors, published by EDP Sciences, 2017
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