An in-depth understanding of the liquid flow characteristics in rotating packed beds (RPBs) is very important for the optimization and modelling of RPB reactors. However, the complex and dense packing makes it very difficult to accurately obtain the dynamic and detailed characteristics of liquid flow in RPBs through experimental methods. Therefore, this paper carried out a 3D gas–liquid flow CFD simulation of an RPB with structured wire mesh packing to obtain detailed liquid flow information. Detailed macro and micro characteristics of the liquid flow in the packing region of the RPB are obtained. The dynamic evolution processes of droplets are observed and analysed. A new flow pattern of “branch flow” is observed in the packing region. In addition, two typical liquid disintegration modes of liquid ligament-droplet disintegration and liquid bridge-droplet disintegration are observed, and the disintegration mechanisms are analysed. Finally, the effects of contact angle and rotational speed on the characteristic parameters are investigated, and the interfacial areas between different phases in the RPB are analysed. In both hydrophilic and hydrophobic packings, the wetted packing surface area is always less than the gas–liquid interfacial area, and their ratio decreases with the increases of contact angle and/or rotational speed, but increases with the increase of the liquid viscosity.

深入了解旋转填充床 (RPB) 中的液体流动特性对于 RPB 反应器的优化和建模非常重要。然而，复杂而致密的填料使得通过实验方法准确获得RPB中液体流动的动态和详细特征变得非常困难。因此，本文对带有结构化丝网填料的 RPB 进行了 3D 气液流动 CFD 模拟，以获得详细的液体流动信息。获得了 RPB 填料区域中液体流动的详细宏观和微观特征。观察和分析了液滴的动态演化过程。在填料区观察到一种新的“支流”流动模式。此外，观察了液韧带-液滴崩解和液桥-液滴崩解两种典型的液体崩解模式，并分析了其崩解机理。最后，研究了接触角和转速对特征参数的影响，并分析了RPB中不同相之间的界面面积。在亲水填料和疏水填料中，润湿填料表面积总是小于气液界面面积，它们的比值随着接触角和/或转速的增加而减小，但随着液体粘度的增加而增加。并对RPB中不同相之间的界面面积进行了分析。在亲水填料和疏水填料中，润湿填料表面积总是小于气液界面面积，它们的比值随着接触角和/或转速的增加而减小，但随着液体粘度的增加而增加。并对RPB中不同相之间的界面面积进行了分析。在亲水填料和疏水填料中，润湿填料表面积总是小于气液界面面积，它们的比值随着接触角和/或转速的增加而减小，但随着液体粘度的增加而增加。