Investigation of the hydrodynamics of slug flow in airlift pumps  

作　　者：Zhineng Wang Yong Kang Xiaochuan Wang Shijing Wu Xiaoyong Li 

机构地区：[1]Key Laboratory of Hydraulic Machinery Transients, Ministry of Education, Wuhan University [2]Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University [3]School of Power and Mechanical Engineering, Wuhan University

出　　处：《Chinese Journal of Chemical Engineering》2018年第12期2391-2402,共12页中国化学工程学报（英文版）

基　　金：Supported by the National Key Basic Research Development Program of China(2014CB239200);the National Natural Science Foundation of China(51574173,51705372);the Hubei Provincial Natural Science Foundation(2015CFA154);Jiangsu Provincial Natural Science Foundation of China(No.BK20170411)

摘　　要：A slug flow model considering the dispersed bubbles entrained from the tail of Taylor bubble(TB) and recoalesced with the successive TB was proposed. Experiment was conducted to test the validity of this model by using a high-speed camcorder and particle image velocimetry(PIV). It was found that the model was valid for predicting the characteristics of slug flow in airlift pump within average error of 14%. Moreover, large pipe diameter was found to accelerate the rise velocity of TB and decreases void fraction in liquid slug by a small margin.A slug flow model considering the dispersed bubbles entrained from the tail of Taylor bubble(TB) and recoalesced with the successive TB was proposed. Experiment was conducted to test the validity of this model by using a high-speed camcorder and particle image velocimetry(PIV). It was found that the model was valid for predicting the characteristics of slug flow in airlift pump within average error of 14%. Moreover, large pipe diameter was found to accelerate the rise velocity of TB and decreases void fraction in liquid slug by a small margin.

关 键 词：AIRLIFT PUMP Flow regimes BUBBLE MASS TRANSFER HYDRODYNAMICS 

分 类 号：TQ[化学工程]