Gas-liquid Taylor flow pressure drop in rectangular meandering microchannel

被引：0
|
作者：
Liang Q. [1 ,2 ]
Ma X. [1 ]
Wang K. [1 ]
Chun J. [1 ]
Hao T. [1 ]
Lan Z. [1 ]
Wang Y. [2 ]
机构：
[1] Liaoning Key Laboratory of Clean Utilization of Chemical Resources, Dalian University of Technology, Dalian, 116024, Liaoning
[2] School of Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou, 014010, Inner Mongolia
来源：
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 04期
关键词：
Microchannels; Model; Pressure drop; Rectangular section; Two-phase flow;
D O I：
10.11949/j.issn.0438-1157.20181235
中图分类号：
学科分类号：
摘要：
The pressure drop of gas-liquid two-phase Taylor flow in a rectangular meandering microchannel at low CO2 pressure (CO2,5% (vol), N2,95%(vol)) was measured. By comparing the six gas-liquid phase systems, it is found that the physical properties of the liquid phase have a significant effect on the pressure drop of the gas-liquid two-phase Taylor flow. The pressure drop of two-phase flow showed a linear increasing trend with the increasing liquid velocity for surface tension variation group, while for the viscosity variation group, the pressure drop of two-phase flow had a poor linearity with liquid phase velocity, and the pressure drop of two-phase flow increases regularly with 〖j〗_L^(2/3). The comparison between the predicted results from the literatures models and measured data was also made. Considering the effects of the liquid internal circulation, bubble shape and motion, channel characteristic configuration (channel cross section and overall configuration) and physical chemistry of the liquid phase, a two-phase flow pressure drop model was proposed, and a mean deviation ±20% can be obtained. © All Right Reserved.
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页码：1272 / 1281
页数：9
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