Abstract The influence of different packing structures of packed bed particles on the fluid flow through packed beds was investigated. The flow through cylindrical packed beds consisting of mono-sized spherical particles was simulated using an explicit approach. These beds had cylinder to particle diameter ratios between 1.6 and 6.33. The results for the friction factor over a wide range of Reynolds numbers were compared with results from literature. It was found that the Eisfeld and Schnitzlein friction factor correlation was confirmed by the CFD results. The lower cylinder diameter to sphere diameter limit of the KTA friction factor correlation was also evaluated and adjusted. This adjustment was incorporated into a new formulation for the limiting line of the KTA equation, which is presented in this paper. It was further found that in the creeping flow regime the bed friction has an overwhelming effect on the pressure drop, whereas in the turbulent regime the inertial forces and the porous structure has the overwhelming influence.

中文翻译：

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填料结构对流经小柱径粒径比填料床的影响

摘要 研究了填料床颗粒不同填料结构对流体流过填料床的影响。使用显式方法模拟通过由单一尺寸的球形颗粒组成的圆柱形填充床的流动。这些床的圆柱与颗粒直径之比在 1.6 和 6.33 之间。将各种雷诺数的摩擦系数结果与文献结果进行了比较。发现 Eisfeld 和 Schnitzlein 摩擦系数的相关性被 CFD 结果证实。还评估和调整了 KTA 摩擦系数相关性的圆柱直径与球体直径下限。这种调整被纳入到 KTA 方程的限制线的新公式中，该公式在本文中进行了介绍。