MATEC Web Conf.
Volume 92, 2017Thermophysical Basis of Energy Technologies (TBET-2016)
|Number of page(s)||5|
|Published online||21 December 2016|
An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates
1 Kutateladze Institute of Thermophysics, 630090 Novosibirsk, Russia
2 Novosibirsk State Technical University, 630073 Novosibirsk, Russia
* Corresponding author: email@example.com
This article experimentally studies a thermocapillary rupture of a locally heated horizontal liquid film on substrates of different materials and different thickness. In the course of work the dependence of the critical heat flux on the initial and final film thickness was determined. Upon reaching the heat flux and film thickness at which the liquid film boils up, the film disrupts at almost constant finite thickness. The research has shown that with an increase in thermal conductivity and thickness of the substrate the critical heat flux increases. On the substrates of a material with high thermal conductivity (copper) the heat flux is redistributed on the substrate; at that the localization of heating is lost, and the rupture is not observed.
© 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.
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