3D hydrodynamics involving multiple eccentric impellers in unbaffled cylindrical tank

被引：27

作者：

Ameur, Houari ^{[1
]}

机构：

[1] Ctr Univ Salhi Ahmed CUN SA, Inst Sci & Technol, BP 66, Naama 45000, Algeria

来源：

CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2016年 / 24卷 / 05期

关键词：

Computational fluid dynamics; Mixing; Non-Newtonian fluids; Laminar flow; Eccentric impeller; NON-NEWTONIAN LIQUID; STIRRED-TANK; AGITATED VESSEL; FLUID-DYNAMICS; PSEUDOPLASTIC FLUIDS; WALL REGION; MIXING TIME; FLOW; EFFICIENCY; HOMOGENIZATION;

D O I：

10.1016/j.cjche.2015.12.010

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, the numerical predictions of 3D hydrodynamics and power consumption in a vessel stirred by multiple eccentrically located impellers are presented. The vessel is a flat-bottomed cylindrical one equipped with six-curved bladed impellers. Aqueous solutions of xanthan gum are used, which have a shear thinning behavior with yield stress. The influence of several parameters on the mixing efficiency has been investigated, namely: the stirring rate, fluid rheology, impeller number and impeller clearance from the tank bottom. Our predicted results are compared with other experimental data and a satisfactory agreement is found. (C) 2015 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.

引用

页码：572 / 580

页数：9