Stirred vessels are used to facilitate mixing processes across a wide range of industries. Their performance can often be predicted with certain characteristics of the agitator, like the dimensionless power and flow numbers. Since there exists a large number of agitator designs and geometries, it is desirable to be able to predict these characteristics using models rather than rely on previous experimental data. In this study, we use an angular momentum balance combined with computational fluid dynamics to correlate the power, flow, and mixer geometry across a wide range of down-pumping pitched blade turbine geometries. The models developed from the results allow us to predict the power from the flow (or vice versa) for the geometries investigated. We tested two methods for the measurement of the flow rate and found that the choice of measurement method can affect the relationship between the power, flow, and impeller geometry.

中文翻译：

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轴流式叶轮几何形状对功率和流量之间关系的影响

搅拌容器用于促进各种行业的混合过程。它们的性能通常可以通过搅拌器的某些特性来预测，例如无量纲功率和流量数。由于存在大量的搅拌器设计和几何形状，因此希望能够使用模型而不是依赖以前的实验数据来预测这些特性。在这项研究中，我们使用角动量平衡与计算流体动力学相结合，将功率、流量和混合器几何形状关联到广泛的下泵斜叶片涡轮几何形状。根据结果​​开发的模型使我们能够预测所研究几何形状的流动功率（反之亦然）。