| Issue |
MATEC Web Conf.
Volume 91, 2017
The Fourth International Youth Forum “Smart Grids 2016”
|
|
|---|---|---|
| Article Number | 01026 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/matecconf/20179101026 | |
| Published online | 20 December 2016 | |
Mechanism of Contact Line Movement of a Droplet Spreading Over a Solid Surface
1 Kutateladze Institute of Thermophysics, 630090, Novosibirsk, Russia
2 National Research Tomsk Polytechnic University, 634050, Tomsk, Russia
* Corresponding author: fdv@tpu.ru
The contact line movement, advancing and receding, of the distilled water droplet was studied on the polished and laser patterned aluminum surfaces. The obtained dependences of the dynamic contact angles on the contact line speed were fitted by the combined theory consisting of molecular-kinetic and hydrodynamic theories. Results obtained on laser patterned surface are found to fit better to the theory in comparison with polished surface. The assumption was made that this result is connected with the low contact angle hysteresis on the patterned surface compared to the polished one. It means that combined theory does not consider the contact angle hysteresis.
© The Authors, published by EDP Sciences, 2017
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