Research of Mixing Process in Stirred Tank by Dual Axial Flow Impellers
Mixing time is an important parameter which describes blending homogenization and efficiency in stirred tank. In this paper, three dimensional flow and time-dependent mixing of experimental liquid agitated by dual-layer axial flow impeller, tri-narrow-blade hydrofoil impeller (THI), are analyzed using computational fluid dynamics (CFD). Especially the effects of feeding and detecting positions on mixing time and power consumption in stirred tank are discussed in detail. At the same time, corresponding experiments are carried out to validate the CFD results. It is founded that CFD results show a good agreement with experiment data. Mixing time and power consumption by THI are related to feeding and detecting positions. Special attentions should be paid to the selection of feeding and detecting positions in order to heighten productive efficiency.
Axial flow impeller Mixing time Tracer concentration Numerical simulation Experiment
Zhu Xiangzhe Chen Li
Department of Mechanical Engineering, Liaoning University of Petroleum and Chemical Technology, Fushun 113001, Liaoning, P. R. China
国际会议
北京
英文
2007-08-05（万方平台首次上网日期，不代表论文的发表时间）