Rivulet dynamics at isothermal film flow
- Authors: Bobylev A.V.1,2, Guzanov V.V.1,2, Kharlamov S.M.1,2, Kvon A.Z.1,2, Markovich D.M.1,2
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Affiliations:
- Kutateladze Institute of Thermophysics, Siberian Branch
- Novosibirsk State University
- Issue: Vol 43, No 8 (2017)
- Pages: 694-697
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/205549
- DOI: https://doi.org/10.1134/S106378501708003X
- ID: 205549
Cite item
Abstract
Averaged fields of thickness of an isothermal vertically flowing liquid film, obtained by the laserinduced fluorescence method, have been analyzed. The chosen minimum averaging time interval, at which the wave motion is completely averaged, allows one to observe rivulet dynamics in a transverse direction. It is found that short-lived rivulets, which are chains of no less than five to eight waves with similar transverse coordinates, are dominant structures on the film surface at Reynolds number Re > 50.
About the authors
A. V. Bobylev
Kutateladze Institute of Thermophysics, Siberian Branch; Novosibirsk State University
Author for correspondence.
Email: bobylev@itp.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
V. V. Guzanov
Kutateladze Institute of Thermophysics, Siberian Branch; Novosibirsk State University
Email: bobylev@itp.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
S. M. Kharlamov
Kutateladze Institute of Thermophysics, Siberian Branch; Novosibirsk State University
Email: bobylev@itp.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
A. Z. Kvon
Kutateladze Institute of Thermophysics, Siberian Branch; Novosibirsk State University
Email: bobylev@itp.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
D. M. Markovich
Kutateladze Institute of Thermophysics, Siberian Branch; Novosibirsk State University
Email: bobylev@itp.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090