文献类型：期刊文献

英文题名：High-efficient CFD-based framework for the comprehensive hydrodynamic evaluation of pulsed extraction columns

作者：Tu, Yuqin[1,2,3];Chen, Hang[1,2,3,4];Sun, Yuzhu[1,2,3,4];Yu, Jianguo[1,2,3]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake R, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Engn Res Ctr Resource Proc Engn, Minist Educ, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Joint Int Lab Potassium & Lithium Strateg Resourc, Shanghai 200237, Peoples R China;[4]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2021

卷号：236

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20211010029848);WOS:【SCI-EXPANDED(收录号:WOS:000632967400004)】；

基金：We would like to acknowledge the financial support from the National Natural Science Foundation of China (22078101 and U1607115) , ?Chen Guang? project supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation (19CG34) , and the China Postdoctoral Science Foundation (2018T110357 and 2017M621387) .

语种：英文

外文关键词：High-efficient CFD; Extraction column; Multi-phase hydrodynamics; Axial mixing; High accuracy; Low cost

摘要：In this study, a high-efficient CFD-based framework was developed for the comprehensive hydrodynamic evaluation of extraction columns. The core concepts of pseudo-3D and mean age theory were responsible for the optimal model geometry and steady transformation, respectively. The results indicate that the tra-ditional 2D simplification is easy to cause the problems of geometrical deformation and turbulence dis-tortion. By contrast, the pseudo-3D keeps all of the 3D hydrodynamic characteristics with smaller computational domain, so that it realizes the synergy of high accuracy and low cost. Meanwhile, the mean age theory transfers the unsteady species transport equation into a steady form so that it only takes tens of seconds for calculating the axial mixing. It was determined that the computational cost was reduced by-20 times for the complete hydrodynamic estimation of a pulsed sieve-plate column. Hence, it is believed to be a high-efficient framework for the computer-aided process development of extractors. (c) 2021 Elsevier Ltd. All rights reserved.