In many industrial applications, the quality of mixing between different materials is fundamental to guarantee the desired properties of products. However, properly modeling and understanding polymer mixing presents noticeable difficulties, because of the variety and complexity of the phenomena involved. This is also the case with the Cavity Transfer Mixer (CTM), an add-on to be mounted downstream of existing extruders, to improve distributive mixing. The present work proposes a fully three-dimensional model of the CTM: a finite element solver provides the transient velocity field, which is used in the mapping method implementation to compute the concentration field evolution and quantify mixing. Several simulations are run assessing the impact on mixing of geometrical and functioning parameters. In general, the number of cavities per row should be limited and the cavity size rather big to guarantee good mixing quality. © 2017 American Institute of Chemical Engineers AIChE J, 2017

中文翻译：

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空腔转移混合器中的混合过程：深入研究

在许多工业应用中，不同材料之间的混合质量是保证产品所需性能的基础。然而，由于所涉及现象的多样性和复杂性，正确建模和理解聚合物混合存在明显的困难。腔体输送混合器（CTM）也是这种情况，它是一种安装在现有挤出机下游的附件，用于改善分配混合。本工作提出了CTM的完整三维模型：一个有限元求解器提供瞬态速度场，该瞬态速度场用于映射方法的实现中以计算浓度场的演化并量化混合。进行了一些模拟，以评估对几何参数和功能参数混合的影响。一般来说，每行腔的数量应受到限制，并且腔的尺寸应较大，以确保良好的混合质量。©2017美国化学工程师学会AIChE的Ĵ，2017年