https://doi.org/10.1051/epjconf/201715900049
Breakdown dynamics of a horizontal evaporating liquid layer when heated locally
1
Kutateladze Institute of Thermophysics SB RAS, 630090, Novosibirsk, Russia
2
Novosibirsk State University, 630090, Novosibirsk, Russia
* Corresponding author: simafir94@gmail.com
Published online: 25 October 2017
Breakdown of liquid layer when heated from a localized hot spot was investigated experimentally. Water and ethanol were used as working liquids with a layer thickness of 300 μm. Basic steps of the breakdown process were found and mean velocities of the dry spot formation were determined. The formation of residual layer over the hot-spot before the breakdown has been found for both liquids. The creation of a droplet cluster near the heating region is observed when using water as a working fluid. It was shown that evaporation is one of the general factors influencing the process of layer breakdown and dry spot formation as well as thermocapillary effect.
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
