Computational and experimental investigation of laminar flow mixing system in a pitched-blade turbine stirred tank

作     者：Yanyan Cui Huabo Zhang Xiwen Li Mingjin Yang Zailin Guan 

作者机构：State Key Laboratory of Digital Manufacturing Equipment and TechnologyHuazhong University of Science and TechnologyWuhan 430074China College of Engineering and TechnologySouthwest UniversityChongqing 400715China 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2018年第11卷第4期

页      面：111-117页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 0703[理学-化学] 

基　　金：This study was financially supported by the National Special Fund Program for Major Scientific Instruments and Equipment Development(2011YQ160002) Open Research Fund Program of Hubei Provincial Key Laboratory of Chemical Equipment Intensification and Intrinsic Safety(2015KA03) 

主　　题：mixing laminar flow PBT impeller mixture homogeneity CFD 

摘      要：The flow distribution and mixing performance of the laminar flow in the PBT impeller-stirred tank were investigated in this *** variation along with mixing time of the flow distribution and concentration at the selected positions was visualized by means of the CFD and experiment *** CFD simulations results had a good agreement with the experimental *** order to minish the Segregated Regions,the PBT impeller was optimally designed by means of orthogonal factorial experiment with selecting theθ99 mixing time as evaluation *** the aim to increase the mixing efficiency,the optimal design results were obtained with the geometrical parameters of impeller diameter of 0.084 m,discharge angle of 45º,blade width of 0.018 m,and clearance of 0.05 m,and the mixing time of the optimal impeller-stirred flow was about 180 s,so this optimal design PBT impeller is more proper for the agricultural industries.