不同T型微通道内弹状流相分离规律的实验研究  

Experimental study on phase separation of slug flow in different T-type microchannels

作　　者：陈宏霞[1] 肖红洋 孙源 刘霖 宫逸飞 CHEN Hong-xia;XIAO Hong-yang;SUN Yuan;LIU Lin;GONG Yi-fei(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,北京102206

出　　处：《高校化学工程学报》2020年第4期912-918,共7页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学基金(51576063);2019年度装备预研教育部联合基金青年人才项目(6141A02033526)。

摘　　要：为获得不同形式顺流T型、冲击T型跨尺度通道对两相流流型的不同调控作用,设计跨尺度-并行多T型管-单晶硅方形通道,增大分液量的同时获得更接近实际应用的多分支口最长气弹伸缩长度;利用高速压力监测系统及高速摄像监测系统分别监测T型分支通道的压力及两相流界面运动,获得不同形式微通道相分离弹状流的压力波动及分液规律,建立微通道内气液界面运动与宏观调控参数两相流流速、压差之间的相关性,同时证明冲击型跨尺度微通道具有更高分液能力。In order to obtain modulation performance of downflow T-type and impact T-type cross-scale microchannels on two-phase flow,a cross-scale multi-T-tube-monocrystalline silicon channel was designed.Its multi-parallel tubes were designed to increase liquid separation volume and obtain the expansion length of sub-bubbles closer to the values used in actual multi-tube application.A high-speed pressure monitoring system and a high-speed camera were used to detect the pressure fluctuation and the interface movement in T-type channels,respectively.The correlation between the gas-liquid interface movement and the macro-control flow such as flow rates and pressure difference was established.Meanwhile,the impact type cross-scale microchannels showed a higher liquid separation capacity.

关 键 词：T型微通道 气液两相流 压力 界面运动 

分 类 号：TK121[动力工程及工程热物理—工程热物理]