Open AccessExperimental study of gas-liquid flow in a rectangular microchannel using LIF method
Author(s) -
German Bartkus,
В. В. Кузнецов
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1677/1/012050
Subject(s) - microchannel , materials science , flow (mathematics) , bubble , flow visualization , mechanics , inlet , hydraulic diameter , cross section (physics) , open channel flow , liquid nitrogen , analytical chemistry (journal) , chemistry , nanotechnology , chromatography , mechanical engineering , physics , turbulence , organic chemistry , quantum mechanics , reynolds number , engineering
This paper aims at experimental study of gas-liquid flow in a horizontal rectangular hydrophilic microchannel with a cross-section of 200×400 μm. The ethanol and nitrogen are used as working liquids and gas accordingly in the microchannel with crossflow T-mixer at the channel inlet. Experimental data are obtained using high-speed visualization, laser flow scanning, and LIF method. The elongated bubble flow and transition flow are observed in the hydrophilic rectangular microchannel depending on gas and liquid flow rates. Using the LIF method, the non-uniform liquid film distribution is observed in the channel cross-section. The liquid film thickness is measured for elongated bubble flow and transition flow and compared with the Taylor law.