DROPLET DIFFUSION-MODEL FOR MICROMIXING
DROPLET DIFFUSION-MODEL FOR MICROMIXING
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DOI：
10.1016/0009-2509(75)87016-3
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发表时间：
1975-01-01
影响因子：
4.7
通讯作者：
NAUMAN, EB
中科院分区：
文献类型：
--
作者：
NAUMAN, EB
分离数的概念导致了一个简单但合理的微观混合模型。最初，流体的大量混合由流体动力学机制发生，并且正是这种类型的混合决定了停留时间分布。在分子尺度上材料的共混需要扩散，液滴模型提供了这种微观混合的方便表示。该模型可用于将隔离程度与单个物理上有意义的参数相关联。该模型很容易应用到预测的反应产率，包括复杂的动力学方案，其中扩散系数，因此不同的分子种类之间的微观混合水平不同。
The concept of segregation number leads to a simple but plausible model of micromixing. Initially, bulk mixing of fluid occurs from hydrodynamic mechanisms and it is this type of mixing that determines the residence time distribution. Co-mingling of material on a molecular scale requires diffusion, and the droplet model provides a convenient representation of such micromixing. The model can be used to relate the degree of segregation to a single, physically meaningful parameter. The model is easily applied to the prediction of reaction yields including complex kinetic schemes where diffusivities and hence levels of micromixing vary between the different molecular species.