Based on the multiple reference frame method and Realizable k-ε model, the whole flow field in a stirred tank with double CBY impellers was numerically simulated using fluent software. The simulation test results were compared with literature. The effects of the blade spacing on the flow field distribution, the lower blade speed and power consumption were examined. The results showed that with the increase of blade spacing, flow pattern from the “connecting flow” into “dispersed flow”, and the test results have good consistency. The influence of blade spacing to the velocity distributions below the upper impellers was relatively large and the influence of blade spacing to the velocity distributions below the lower impellers was little. With the increase of blade spacing, the stirring power increased gradually and the power per unit volumethe decreased.

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[1] 王凯, 虞军. 搅拌设备[M]. 北京: 化学工业出版社, 2003: 1-2.
[2] 党林贵, 郭淑雪, 王定标, 等. 不同组合桨搅拌器搅拌特性的数值研究[J]. 郑州大学学报: 工学版, 2013, 34(3): 59-62.
[3] 刘敏珊, 张丽娜, 董其伍. 涡轮桨搅拌槽内混合特性模拟研究[J]. 工程热物理学报, 2009, 30(10): 1 700-1 702.
[4] Ochieng A, Onyango M S, Kumar A, et al. Mixing in a tank stirred by a Rushton turbine at a low clearance[J]. Chemical Engineering and Processing, 2008, 47(5): 842-851.
[5] 郭欣, 李志鹏, 高正明. 双层翼型桨搅拌槽内流动特性的PIV研究[J]. 过程工程学报, 2010, 10(4): 632-637.
[6] 王定标, 杨丽云, 于艳, 等. 双层桨叶搅拌器流场的CFD模拟与PIV测量[J]. 郑州大学学报: 工学版, 2009, 30(2): 1-5.
[7] 张少坤, 尹侠. 双层桨搅拌槽内流场的数值模拟[J]. 食品与机械, 2011, 27(1): 71-73.
[8] 周勇军, 卢源, 陈明濠, 等. 改进型INTER-MIG搅拌槽内固液悬浮特性的数值模拟[J]. 过程工程学报, 2014, 14(5): 744-749.



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