摘要
以空气、水为工质，对内径５０ｍｍ的垂直管内气液两相逆向流动中的液泛现象和界面波特性进行了实验研究．通过实验观察和分析，认为本实验条件下的液泛是由于气液界面产生大的振幅波而后失稳造成的．研究了液泛产生前、后界面波特征及其速度、频率和波长随气液两相流量的变化规律．
Flooding phenomenon is one of the key problems in gas liquid countercurrent two phase flow. In this paper, with air and water as working fluids, an experimental investigation on the flooding phenomena and the characteristics of interfacial waves in countercurrent gas liquid two phase flow in vertical pipe was carried out by using three two parallel conductance probes to obtain the instantaneous liquid film thickness. Two different structures of water entrance were used. Owing to the experimental observation and the analysis of the experimental data,it was verified that under the present flowing condition and configuration, flooding was mainly caused by the occurrence and instability of the large disturbance formed at the low part of the test section. Furthermore, the characteristics of the interfacial waves before and after the flooding point with variation of gas and liquid two phase flow rates were discussed and investigated.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1997年第5期15-20,共6页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金
关键词
气液两相流
液泛
界面波
逆向流动
垂直管
experimental study gas liquid two phase flow flooding interfacial waves
