| Issue |
MATEC Web Conf.
Volume 84, 2016
International Symposium and School of Young Scientists “Interfacial Phenomena and Heat Transfer” (IPHT 2016)
|
|
|---|---|---|
| Article Number | 00021 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/matecconf/20168400021 | |
| Published online | 16 November 2016 | |
Liquid rivulet moved by a gas flow in a minichannel
1 Lavrentyev Institute of Hydrodynamics, SB RAS, 630090, 15 Lavrentyev prosp., Novosibirsk, Russia
2 Institute of Thermophysics, SB RAS, 630090, 1 Lavrentyev prosp., Novosibirsk, Russia
3 Novosibirsk State University of Architecture and Civil Engineering, 630008, 113 Leningradskaya Str., Novosibirsk, Russia
a Corresponding author: kabova@itp.nsc.ru
The mathematical model of steady-state flow of incompressible and nonisothermal liquid rivulet moved by a gas in an inclined minichannel was developed. Action of van der Waals and capillary forces, as well as gravity and tangential stress at the gas-liquid interface are taking into account. Numerically it is found out that rivulet formation gives a significant disturbing effect on the gas velocity distribution. It is shown that at the rivulet profile clearly visible three-phase contact line and region with practically constant inclination could be seen near the thin liquid film areas. The angle of this inclination could be considered as a contact angle. Region with practically constant derivative of the function h(y) with respect to y, near the contact line confirms this statement.
© The Authors, published by EDP Sciences, 2016
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