垂直上升管中的液弹长度分布  

Length distribution of liquid slug along vertical pipe

作　　者：李西营[1] 于志家[1] 

机构地区：[1]大连理工大学化学工程研究所,辽宁大连116012

出　　处：《化学工程》2006年第9期20-23,共4页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(20476014)

摘　　要：根据气液相不同的电导性质,通过实验测得了气液二相弹状流中气液弹的长度及速度。利用统计方法研究了在垂直上升管内不同位置以及不同气液表观速度下的液弹长度分布。结果表明该分布能够与对数正态分布关系式符合得很好,气液表观速度对液弹长度影响并不显著。同时还研究了气泡上升速度与前方液弹长度的关系,该关系可以用R.van Hout得到的经验关系式来描绘。Based on the different conductivities of liquid phase and gas phase, the length of liquid slug and elongated bubble were obtained. By statistical means, the liquid slug length distribution was studied along the vertical pipe at different gas and liquid superficial velocities. The result has a good agreement with Miller＇s lognormal distribution. The changes of different gas and liquid superficial velocities have little influence on the liquid length distribution. In addition, the relation between the translational velocity of Taylor bubble and the length of liquid slug ahead of it was demonstrated. The correlation can be clearly depicted by the equation R. van Hout.

关 键 词：弹状流 液弹 统计方法 长度分布 

分 类 号：TQ021[化学工程]