| Issue |
MATEC Web Conf.
Volume 110, 2017
International Youth Scientific Conference “Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment” (HMTTSC 2017)
|
|
|---|---|---|
| Article Number | 01040 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/matecconf/201711001040 | |
| Published online | 19 June 2017 | |
Experimental study of the effect of the substrate roughness on the thermocapillary breakdown of a horizontal liquid film
1 Kutateladze Institute of Thermophysics, 630090 Novosibirsk, Russia
2 Novosibirsk State Technical University, 630073 Novosibirsk, Russia
* Corresponding author: kochkin1995@mail.ru
The paper describes experiments on study of influence of the substrate roughness on the phenomenon of thermocapillary breakdown in a horizontal nonisothermal film of liuqid placed upon a stainless steel substrates. The critical heat flux for fim breakdown is almost independent of roughness. However, the substrate roughness is signifcant for dynamics of film breakdown. The velocity of contact line propagation decreases with the roughness growth. The final size of a dry spot decreases for higher roughness.
© The Authors, published by EDP Sciences, 2017
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