Movement of liquid rivulet in a microchannel with a co-current gas flow
- Authors: Kabova Y.O.1, Kuznetsov V.V.2,3, Kabov O.A.1,3
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Affiliations:
- Kutateladze Institute of Thermophysics SB RAS
- Lavrentyev Institute of Hydrodynamics SB RAS
- Novosibirsk State University
- Issue: Vol 25, No 6 (2018)
- Pages: 865-874
- Section: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/218029
- DOI: https://doi.org/10.1134/S0869864318060070
- ID: 218029
Cite item
Abstract
The joint steady-state motion of a rivulet of incompressible liquid and a gas flow in a microchannel was studied taking into account the action of gravity forces, tangential stress at the gas-liquid interface, and Van der Waals forces. The values of contact angle are calculated for various values of liquid and gas flow rates. It is shown that for a constant liquid flow rate, an increase in gas velocity leads to a decrease in the height of rivulet, and the surface of rivulet becomes flatter. A significant deforming effect of rivulet on the velocity distribution in gas is found.
Keywords
About the authors
Yu. O. Kabova
Kutateladze Institute of Thermophysics SB RAS
Author for correspondence.
Email: kabov@itp.nsc.ru
Russian Federation, Novosibirsk
V. V. Kuznetsov
Lavrentyev Institute of Hydrodynamics SB RAS; Novosibirsk State University
Email: kabov@itp.nsc.ru
Russian Federation, Novosibirsk; Novosibirsk
O. A. Kabov
Kutateladze Institute of Thermophysics SB RAS; Novosibirsk State University
Email: kabov@itp.nsc.ru
Russian Federation, Novosibirsk; Novosibirsk