Experimental investigation of two-phase gas-liquid flow in microchannel with T-junction

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Abstract

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.

Original languageEnglish
Article number0004
JournalEPJ Web of Conferences
Volume159
DOIs
Publication statusPublished - 25 Oct 2017

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