DEM/CFD analysis of granular flow in static mixers
DEM/CFD analysis of granular flow in static mixers
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DOI：
10.1016/j.powtec.2014.06.032
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发表时间：
2014-11
影响因子：
5.2
通讯作者：
Aca Jovanović;Milada L. Pezo;L. Pezo;L. Lević
中科院分区：
文献类型：
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作者：
Aca Jovanović;Milada L. Pezo;L. Pezo;L. Lević
粉末、颗粒和/或粒料的混合在各种技术中以及在食品、制药和化学工业中具有经济重要性。在许多情况下，混合过程极大地影响最终产品的质量。混合过程的参数和设备的设计对混合效率以及中间产品或最终产品的质量和价格有很大的影响。在这项研究中，离散元法（DEM）用于模拟颗粒流在各种多个Komax和Ross混合应用。采用计算流体动力学（CFD）方法对欧拉多相模型中的流体流动进行了模拟。这两种方法的耦合提供了可靠的，足够正确和足够的结果相比，实验测量所提出的模型。本文的目的是预测在不同的静态混合器配置的颗粒的行为。数值模拟的结果与适当的实验结果进行了比较。该模型的应用提供了混合系统的几何形状和参数的优化，同时考虑到混合过程的质量和最终产品的成本。
Mixing of powders, particles and/or granules obtains an economic importance in various technologies, and in the food, pharmaceutical and chemical industries. In many cases, the mixing process greatly influences the quality of the final product. The parameters of the mixing process and the design of equipment have a strong impact on the mixing efficiency, and the quality and the price of the intermediate or final product. In this study, the discrete element method (DEM) is used for modeling of granular flow in various multiple Komax and Ross mixing applications. Computational fluid dynamic (CFD) method was used for modeling of fluid flow through the Eulerian multiphase model. Coupling of these two methods provides reliable, sufficiently correct and adequate results of the proposed model compared to experimental measurements. The objective of this paper is to predict the behavior of particles in different static mixer configurations. The results of the numerical simulation are compared with appropriate experimental results. Application of this model provides the optimization of the geometry and parameters of mixing systems taking into account the quality of the mixing process and the cost of the final product.