规则结构多孔填料塔两相流动特性实验研究  

EXPERIMENTAL INVESTIGATION OF TWO-PHASE FLOW FRICTION IN A REGULAR POROUS STRUCTURE

作　　者：廖强[1] 陈蓉[1] 朱恂[1] 

机构地区：[1]重庆大学工程热物理研究所,重庆400044

出　　处：《工程热物理学报》2003年第2期277-279,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50006015);教育部留学回国人员科研启动基金资助项目(No.[1999]788);重庆市科技攻关基金资助项目(No.2001-6681);重庆市应用基础研究基金资助项目(No.2000-6256)

摘　　要：本文以空气和水为工质,对规则结构多孔填料塔的气-液逆向流动特性进行了可视化实验,研究了填料塔内气一液两相流动规律.实验结果表明:当液体流量一定时,随着气体流量的增加,压力损失增大;当气体流量一定时,随着液体流量的增加,气相压力损失增加.根据实验结果提出了采用水力雷诺数、韦伯数和无量纲流动参数的填料塔内气-液两相流动阻力系数实验关联式.In this paper, a visualization experiment was conducted for two-phase flow of air and water in a regular porous structure. The effects of liquid flow rate and gas flow rate on the two-phase flow friction were studied, respectively. The experimental results show that with the increase of air flow rate, the flow friction factor increases at a fixed water flow rate. For a fixed air flow rate, the two-phase flow friction factor increases as the water flow rate increasing and a larger air flow rate leads to a larger variation of the flow friction factor with the water flow rate. For predicting the two-phase flow friction characteristics of the porous structure, a correlation of flow friction factor was obtained from the experimental data with Reynolds number, Weber number, Bond number, and the dimensionless flow parameter.

关 键 词：实验 规则多孔填料塔 阻力特性 气液两相流 

分 类 号：O359.1[理学—流体力学]