The necessity for a validated computational fluid dynamics (CFD)‐based model to deepen our understanding about the complex hydrodynamics of gas–liquid flows in oscillating porous media has driven this experimental and simulation work. A transient three‐dimensional Euler–Euler porous media CFD model using moving reference frame and sliding mesh techniques was applied to elucidate the dynamic features of gas–liquid flows of cocurrent downflow packed beds subject to tilts and oscillations reminiscent of sea conditions. Incorporation of capillary and mechanical dispersion forces besides interphase momentum exchange terms in the CFD model to achieve reliable predictions was evaluated with respect to experimental data acquired by capacitance wire‐mesh sensors and differential pressure transmitter. In the light of the validated CFD model, a detailed sensitivity analysis was performed to address the interrelations between hydrodynamic parameters, influence of fluid properties and packing size on the model predictions, and additional contribution of column oscillations on multiphase dynamics. © 2018 American Institute of Chemical Engineers AIChE J, 65: 385–397, 2019

中文翻译：

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滚海条件下多相填充床流体动力学的CFD研究和实验验证

建立一个经过验证的基于计算流体动力学（CFD）的模型以加深我们对振荡多孔介质中气液流动的复杂流体力学的理解的必要性推动了这项实验和仿真工作。应用瞬态三维Euler-Euler多孔介质CFD模型（使用移动参考系和滑动网格技术）来阐明并流向下填充床的气液流动的动态特征，这些特征会引起海况的倾斜和振荡。在CFD模型中，除了相间动量交换项外，还结合了毛细管力和机械分散力以实现可靠的预测，这是通过电容丝网传感器和压差变送器获取的实验数据进行评估的。根据经过验证的CFD模型，进行了详细的灵敏度分析，以解决流体动力学参数之间的相互关系，流体性质和填充量对模型预测的影响，以及柱振动对多相动力学的其他影响。©2018美国化学工程师学会AIChE J，65：385–397，2019