The formation,evolution and modelling of organized flow structures(e.g.,segregated regions and centre-surface vortices) and their destruction in unbaffled stirred tank reactors(UBSTRs) have been a hot research topic i...The formation,evolution and modelling of organized flow structures(e.g.,segregated regions and centre-surface vortices) and their destruction in unbaffled stirred tank reactors(UBSTRs) have been a hot research topic in the field of fluid mixing.In this paper,the relevant researches in the past 30 years were reviewed,focusing on the application of asymmetric mixing.In particular,by drawing on chaotic phenomena in nature and human society(e.g.,kneading-dough,traffic flow,frightened school of fish),we propose a fluid mixing mechanism:squeezing-induced chaotic mixing,and further propose a bionics-imitation-simulation design concept for UBSTRs.This concept is also an important inspiration for the design of other chemical reactors.展开更多
基金the National Key Research and Development Program of China (2022YFB3504300)the Graduate Research and Innovation Foundation of Chongqing (CYB240045)+1 种基金the Fundamental Research Funds for the Central Universities(2024CDJXY010)the Large-scale Instrument and Equipment Function Development Program of Chongqing University(gnkf2024019) for supporting this work。
文摘The formation,evolution and modelling of organized flow structures(e.g.,segregated regions and centre-surface vortices) and their destruction in unbaffled stirred tank reactors(UBSTRs) have been a hot research topic in the field of fluid mixing.In this paper,the relevant researches in the past 30 years were reviewed,focusing on the application of asymmetric mixing.In particular,by drawing on chaotic phenomena in nature and human society(e.g.,kneading-dough,traffic flow,frightened school of fish),we propose a fluid mixing mechanism:squeezing-induced chaotic mixing,and further propose a bionics-imitation-simulation design concept for UBSTRs.This concept is also an important inspiration for the design of other chemical reactors.
