CFD study of flow-diffusion process in Y-shape micromixer  

作　　者：陈卓 张睿琦 王晓娜 

机构地区：[1]School of Energy Science and Engineering, Central South University

出　　处：《Journal of Central South University》2016年第4期969-974,共6页中南大学学报（英文版）

基　　金：Project(51106184)supported by the National Natural Science Foundation of China

摘　　要：A CFD simulation was carried out to investigate the mixing process in a Y-shape micromixer with the software Fluent 6.3. The definition of the "diffusion angle" is proposed to describe the molecular diffusion process associated with the flow at low Reynolds number. The linear relationship between the diffusion angle and the Peclet number(Pe) is determined by both theoretical analysis and numerical simulation. Moreover, the simulation results reveal that the diffusion angle is only related to the Peclet number whilst it is irrelevant to the changes of Re(Reynolds number) and Sc(Schmidt number). The range of Peclet number and Reynolds number for experimental measurement are also suggested as Pe≤10000 and Re≤10.A CFD simulation was carried out to investigate the mixing process in a Y-shape micromixer with the software Fluent 6.3. The definition of the ＂diffusion angle＂ is proposed to describe the molecular diffusion process associated with the flow at low Reynolds number. The linear relationship between the diffusion angle and the Peclet number （Pe） is determined by both theoretical analysis and numerical simulation. Moreover, the simulation results reveal that the diffusion angle is only related to the Peclet number whilst it is irrelevant to the changes of Re （Reynolds number） and Sc （Schmidt number）. The range of Peclet number and Reynolds number for experimental measurement are also suggested as Pe≤10000 and Re≤10.

关 键 词：SIMULATION flow-diffusion process molecular diffusion Y-shape micromixer 

分 类 号：O351.2[理学—流体力学]