TY - JOUR

T1 - Experimental Study of Gas-Liquid Flow Patterns in Slit Channel with Cross-Junction Mixer

AU - Bartkus, G. V.

AU - Kuznetsov, V. V.

N1 - Funding Information: This work was supported by RFBR, grant no. 19-38-90255. Publisher Copyright: © 2021, Pleiades Publishing, Ltd. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/1

Y1 - 2021/1

N2 - The paper presents results of an experimental study of the structure of gas-liquid flow in a slit microchannel with a cross section of 200\times 1205 μm and an aspect ratio of 1:6. The liquids used were ethanol and distilled water, and the gas was nitrogen; a cross-junction mixer performed the mixing. In the wide ranges of gas and liquid flow rates Jliq=0.02–0.1 m/s and Jgas=0.03–73 m/s, characteristic patterns of gas-liquid flow were determined: the flow with elongated bubbles, transitional flow, stratified flow, stratified-wavy flow, stratified-wavy flow with droplet entrainment, and annular flow. Maps of flow patterns were constructed. The conditions were determined at which the liquid was displaced from menisci to the wide side of microchannel at high gas velocities with formation of wave flow in the liquid film.

AB - The paper presents results of an experimental study of the structure of gas-liquid flow in a slit microchannel with a cross section of 200\times 1205 μm and an aspect ratio of 1:6. The liquids used were ethanol and distilled water, and the gas was nitrogen; a cross-junction mixer performed the mixing. In the wide ranges of gas and liquid flow rates Jliq=0.02–0.1 m/s and Jgas=0.03–73 m/s, characteristic patterns of gas-liquid flow were determined: the flow with elongated bubbles, transitional flow, stratified flow, stratified-wavy flow, stratified-wavy flow with droplet entrainment, and annular flow. Maps of flow patterns were constructed. The conditions were determined at which the liquid was displaced from menisci to the wide side of microchannel at high gas velocities with formation of wave flow in the liquid film.

UR - http://www.scopus.com/inward/record.url?scp=85108073352&partnerID=8YFLogxK

U2 - 10.1134/S1810232821010021

DO - 10.1134/S1810232821010021

M3 - Article

AN - SCOPUS:85108073352

VL - 30

SP - 14

EP - 18

JO - Journal of Engineering Thermophysics

JF - Journal of Engineering Thermophysics

SN - 1810-2328

IS - 1

ER -