| Issue |
MATEC Web Conf.
Volume 84, 2016
International Symposium and School of Young Scientists “Interfacial Phenomena and Heat Transfer” (IPHT 2016)
|
|
|---|---|---|
| Article Number | 00002 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/matecconf/20168400002 | |
| Published online | 16 November 2016 | |
3D instability of liquid films and rivulets
1 Kutateladze Institute of Thermophysics SB RAS, Lavrentiev ave., 1, Novosibirsk, 630090, Russia
2 Novosibirsk State University, Pirogov str., 2, Novosibirsk, 630090, Russia
This article presents the results of experimental and theoretical study of 3D instability of waves in liquid films and rivulets, falling down a vertical plate. The method of laser induced fluorescence was used to obtain instant shapes of three dimensional waves in a liquid films and rivulets and to investigate the regularities of formation of 3D wave patterns. In particular, during 2D-3D wave transition in the film flow, we observed a strong transverse redistribution of liquid leading to the formation of rivulets on the surface of isothermal liquid film, which is a phenomenon not described previously. The results of simulation of 2 D and 3D regular waves in the single rivulet are compared with the authors’ previous experimental data.
© The Authors, published by EDP Sciences, 2016
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