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

关键字:cylinder stirrer; mixing time; power number; Computational Fluid Mechanics(CFD)

摘要: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.

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