Paper Title:
CFD Study of the Mixing of Pseudoplastic Fluids with Yield Stress in a Two-Staged Stirred Tank
  Abstract

The 3D flow field generated by two-stage impellers in the agitation of xanthan gum, a pseudoplastic fluid with yield stress, was simulated using the commerical CFD package. The effect of impeller speed and impeller spacing on power number, cavern size and viscosity distribution was investigated in this work. The results showed that the power number was slightly influenced by impeller spacing. Higher impeller speed and larger impeller spacing contributed to creation of a bigger cavern. The range of high viscosity zone between the impellers increased with an increase in impeller spacing. Impeller speed and impeller spacing could be used as important parameters to improve the mixing performance of multi-stage impellers in the mixing of pseudoplastic fluids with yield stress.

  Info
Periodical
Advanced Materials Research (Volumes 354-355)
Chapter
Chapter 4: Fluid Machinery and Engineering
Edited by
Hao Zhang, Yang Fu and Zhong Tang
Pages
604-608
DOI
10.4028/www.scientific.net/AMR.354-355.604
Citation
F. J. Hu, S. J. Zhou, F. L. Yang, L. Shi, "CFD Study of the Mixing of Pseudoplastic Fluids with Yield Stress in a Two-Staged Stirred Tank", Advanced Materials Research, Vols. 354-355, pp. 604-608, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Lei Shi, Shen Jie Zhou, Feng Ling Yang, Fan Jin Hu
Chapter 4: Fluid Machinery and Engineering
Abstract:Mixing efficiency is an important parameter in the design of many industrial processes in stirred tanks. In this study, CFD technology was...
559
Authors: Gui Chao Wang, Shen Jie Zhou, Feng Ling Yang, Song Ying Chen
Chapter 4: Fluid Machinery and Engineering
Abstract:Particles concentration distribution in a stirred tank with pitched blade turbine was investigated using computational fluid dynamics. The...
696
Authors: Zhen Li, Chao Yang, An Ning Zhou, Jiong Tian Liu
Chapter 6: Advanced Machinery and Equipment
Abstract:As for the pulp-mixing process of small mineral, its flow field configuration principle is to obtain effective cycle in the same operating...
779
Authors: Bo Hu, Shou Qi Yuan, Wei Gang Lu, Jian Ping Yuan, Lei Li
Chapter 9: Embedded System
Abstract:Three experiment factors including outlet blade angle β2, b2 and impeller wrapping angle θ are selected for optimal design of a non-overload...
2357
Authors: Jun Ling Fan, De Yu Luan
Chapter 13: Modeling, Simulation and Emulation
Abstract:Computational fluid dynamics (CFD) method was applied to the study of flow field in the agitation of glycerin fluid with a Rushton impeller...
2375