CFD Study of Power and Mixing Time in a Vessel Agitated by Large Height Diameter Ratio Cylinder Stirrer

Author

Zhang, Pan ; Wang, Weiwen ; Chen, Guanghui ; Li, Jianlong

Author_Institution

Coll. of Electronmechanical Eng., Qingdao Univ. of Sci. & Technol., Qingdao, China

fYear

2009

fDate

2-3 May 2009

Firstpage

75

Lastpage

78

Abstract

In order to develop low energy consumption and high efficiency stirrer, authors have designed a new type of cylinder stirrer for low viscosity medium. In this article, CFD investigation of the flow field, power consumption and mixing time in lab-scale vessels by large height diameter ratio cylinder stirrer are performed. Three-dimensional time-dependent flow and mixing prediction have been carried out using MRF (Multi Reference Frames) method embodied CFD (Computational Fluid Mechanics) package FLUENT6.2, and mixing time studies were done using a simulated tracer injection experiment. The CFD results show the performance of large height diameter ratio cylinder is better than the one of small ratio.

Keywords

computational fluid dynamics; mechanical engineering computing; mixing; viscosity; CFD; computational fluid mechanics; large height diameter ratio cylinder stirrer; mixing prediction; multi reference frames method; time-dependent flow; Computational fluid dynamics; Computational modeling; Design engineering; Energy consumption; Engine cylinders; Equations; Hydrodynamics; Power engineering and energy; Power engineering computing; Predictive models; Computational Fluid Mechanics(CFD); cylinder stirrer; mixing time; power number;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering Computation, 2009. ICEC '09. International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-0-7695-3655-2

Type

conf

DOI

10.1109/ICEC.2009.35

Filename

5167095