Title :
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
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;
Conference_Titel :
Engineering Computation, 2009. ICEC '09. International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-0-7695-3655-2
DOI :
10.1109/ICEC.2009.35
