A comparison of power and flow characteristics between batch and in-line rotor-stator mixers
A comparison of power and flow characteristics between batch and in-line rotor-stator mixers
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DOI：
10.1016/j.ces.2019.03.015
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发表时间：
2019-07
影响因子：
4.7
通讯作者：
T. John;C. Fonte;A. Kowalski;T. Rodgers
中科院分区：
文献类型：
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作者：
T. John;C. Fonte;A. Kowalski;T. Rodgers
转子-定子混合器在许多行业中用于执行乳化和解聚过程。尽管以前的研究，不同的操作模式没有进行比较的流量和功率特性。本研究的目的是使用计算流体动力学研究的Silverson L5 M混合器在分批和在线模式下运行的功率和流量特性。MRF与标准k-ε湍流模型一起沿着用于模拟。结果表明，分批搅拌机的特点是在相同的是作为在线搅拌机，并为一个给定的混合头设计，表征是独立的操作模式。提出了一种新的计算流数的方法，解释了以往研究中的一些不一致结果。总体而言，这项工作提高了我们的理解转子-定子混合器，并允许更好的设计选择的混合器。
Rotor-stator mixers are used in many industries to perform emulsification and de-agglomeration processes. Despite previous research, different modes of operation have not been compared in terms of flow and power characteristics. The aim of this study was to use CFD to investigate power and flow characteristics of a Silverson L5M mixer operating in batch and in-line mode. MRF was used along with the standard k-∊ turbulence model for the simulations. Results suggest that batch mixers can be characterised in the same was as in-line mixers, and for a given mixing head design, the characterisation is independent of the mode of operation. A new way of the calculating flow number is proposed, which explains some discrepant results from previous studies. Overall, this work enhances our understanding of rotor-stator mixers and allows for better design choices of mixer.