Experimental and numerical investigations on micromixing performance of multi-orifice cross-flow jet mixers

作     者：Hang Yang Zhaojin Lu Likun Ma Wei Yin Bingjie Wang Zhishan Bai Xiaoyong Yang Hang Yang;Zhaojin Lu;Likun Ma;Wei Yin;Bingjie Wang;Zhishan Bai;Xiaoyong Yang

作者机构：School of Mechanical and Power EngineeringEast China University of Science and TechnologyShanghai 200237China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2024年第70卷第6期

页      面：63-72页

核心收录：

学科分类：080704[工学-流体机械及工程] 0817[工学-化学工程与技术] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the financial support from the Shanghai Sailing Program,China(21YF1409500) the National Natural Science Foundation of China(22308100,22308105) the State Key Laboratory of Chemical Engineering(SKL-ChE-23Z01) the National Science Fund for Distinguished Young Scholars of China(22225804) 

主　　题：Multi-orifice cross-flow jet mixer Micromixing performance Finite-rate/modified eddy dissipation model Computational fluid dynamics Villermaux/Dushman reaction 

摘      要：Multi-orifice cross-flow jet mixers(MOCJMs)are used in various industrial applications due to their excellent mixing efficiency,but few studies have focused on the micromixing performance of ***,the flow characteristics and micromixing performance inside the MOCJM were investigated using experiments and computational fluid dynamics(CFD)simulations based on the Villermaux/Dushman system and the finite-rate/modified eddy-dissipation *** optimal A value was correlated with the characteristic parameters of MOCJMs to develop a CFD calculation method applicable to the study of the micromixing performance of the *** the micromixing efficiency was evaluated using the segregation index XS,and the effects of operational and geometric parameters such as mixing flow Reynolds number(ReM),flow ratio(RF),total jet area(ST),the number of jet orifices(n),and outlet configuration on the micromixing efficiency were *** was found that the intensive turbulent region generated by interactions between jets,as well as between jets and crossflows,facilitated rapid *** decreased with increasing ReM and decreasing ***,MOCJMs with lower ST,four jet orifices,and the narrower outlet configuration demonstrated a better micromixing *** study contributes to a deeper understanding of the micromixing performance of MOCJMs and provides valuable guidance for their design,optimization,and industrial application.