化工学报2019，Vol.70Issue(4)：1281-1290,10.DOI:10.11949/j.issn.0438⁃1157.20181235
矩形截面弯曲型微通道气液两相Taylor流压降的研究
Gas-liquid Taylor flow pressure drop in rectangular meandering microchannel
摘要
Abstract
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 2/3L . 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.关键词
两相流/矩形截面/微通道/压降/模型Key words
two-phase flow/rectangular section/microchannels/pressure drop/model分类
化学化工引用本文复制引用
梁倩卿,马学虎,王凯,春江,郝婷婷,兰忠,王亚雄..矩形截面弯曲型微通道气液两相Taylor流压降的研究[J].化工学报,2019,70(4):1281-1290,10.基金项目
国家自然科学基金项目(51576126) （51576126）
