https://doi.org/10.1051/epjconf/201715900004
Experimental investigation of two-phase gas-liquid flow in microchannel with T-junction
1
SB RAS, Kutateladze Institute of Thermophysics, 630090 Ac. Lavrentieva ave. 1, Novosibirsk, Russia
2
Novosibirsk State University, 630090 st. Pirogova 1, Novosibirsk, Russia
* Corresponding author: germanbartkus@gmail.com
Published online: 25 October 2017
Using high-speed video recording and the method of dual laser scanning the gas-liquid flow was investigated in rectangular microchannels with an aspect ratio of 2.35 and 1.26. Experiments were earned out for the vertical flow of ethanol-nitrogen mixture in a microchannel with a cross section of 553×235 µm and for the horizontal flow of water-nitrogen mixture in a microchannel with a cross section of 315×250 µm. The T-mixer was used at the channel's inlet for gas-liquid flow formation. It was observed that elongated bubble, transition, and annular flows are the main regimes for a microchannel with a hydraulic diameter substantially less than the capillary constant. Using laser scanning, the maps of flow regimes for ethanol-nitrogen and water–nitrogen mixtures were obtained and discussed.
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
