3D hydrodynamics involving multiple eccentric impellers in unbaffled cylindrical tank

作     者：Houari Ameur 

作者机构：Institut des Sciences et TechnologiesCentre Universitaire Salhi Ahmed CUN-SA 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2016年第24卷第5期

页      面：572-580页

核心收录：

学科分类：080706[工学-化工过程机械] 081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 081701[工学-化学工程] 

主　　题：Computational fluid dynamics Mixing Non-Newtonian fluids Laminar flow Eccentric impeller 

摘      要：In this paper, the numerical predictions of 3D hydrodynamics and power consumption in a vessel stirred by mul- tiple eccentrically located impellers are presented. The vessel is a fiat-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 theology, impeller number and impeller clearance from the tank bottom. Our predicted results are compared with other experimental data and a satisfactory agreement is found.