Open AccessApplication of the laser-induced fluorescence to study local characteristics of a gas-liquid flow in rectangular microchannel
Author(s) -
German Bartkus,
В. В. Кузнецов
Publication year - 2021
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 - 10.1088/1742-6596/2127/1/012008
Subject(s) - microchannel , laser induced fluorescence , bubble , materials science , hydraulic diameter , flow (mathematics) , cross section (physics) , mechanics , two phase flow , optics , laser , analytical chemistry (journal) , chemistry , nanotechnology , chromatography , physics , turbulence , quantum mechanics , reynolds number
The Laser-Induced Fluorescence (LIF) method was used to characterize liquid phase distribution in rectangular slit microchannel with cross-section 200×1205 μm for horizontal gas-liquid flow. Ethanol and nitrogen were used as working liquid and gas accordingly. The feature of this study is an application of hydraulic focusing cross-junction mixer for obtaining elongated bubble and transition flows in the microchannel with a high aspect ratio. Using LIF measurements for elongated bubble and transition flows the liquid film distributions were obtained for different distances from the bubble top and average liquid film thickness was compared with the prediction according to Taylor’s law.