CFD Simulation of Film Flow and Gas/Liquid Countercurrent Flow on Structured Packing

被引：0
|
作者：
高国华 [1 ]
张吕鸿 [1 ]
李鑫钢 [1 ,2 ]
隋红 [1 ,2 ]
机构：
[1] School of Chemical Engineering and Technology, Tianjin University
[2] National Engineering Research Center for Distillation Technology
来源：
Transactions of Tianjin University | 2011年 / 03期
关键词：
two-dimension; computational fluid dynamics(CFD); film distribution; countercurrent flow;
D O I：
暂无
中图分类号：
O359 [多相流];
学科分类号：
080704 ;
摘要：
A mathematic model of two-phase flow and a physical model of two-dimensional (2D) vertical section for the plate-type structured packing Mellapak 250.Y were set up and verified. The models were used to study the influence of packing’s surface microstructure on the continuity of liquid film and the amount of liquid holdup. Simulation results show that the round corner shape and micro wavy structure are favorable in remaining the continuity of liquid film and increasing the amount of liquid holdup. The appropriate liquid flow rate was determined by investigating different liquid loadings to obtain an unbroken liquid film on the packing surface. The pressure difference between inlet and outlet for gas phase allowed gas and liquid to flow countercurrently in a 2D computational domain. The direction change of gas flow occurred near the phase interface area.
引用
收藏
页码：194 / 198
页数：5
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