This study provides an extension to previously published articles on measurements and computational fluid dynamic (CFD) modeling and simulations of airflow across “bottleneck‐type” structures in the Forchheimer regime to purely inertial‐neglected (Darcy regime) incompressible flowing fluid via tomography datasets. A linear‐dependent relationship between the CFD computed unit pressure drop developed across the samples and the superficial fluid inlet velocity was observed for all the samples for creeping fluid flow (0–7 × 10⁻⁰³m·s⁻¹). The permeability of the structures was observed to be dependent on the structural parameters of the porous medium and most importantly, its pore diameter openings. Linear graphical relations between permeability and pore‐structure related properties of these materials were observed and these could assist in minimizing the number of design iterations needed for the processing of self‐supporting porous metals.

中文翻译：

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达西政权中复制的微细胞结构的通透性

这项研究扩展了先前发表的有关测量和计算流体动力学（CFD）建模以及模拟在Forchheimer体制中穿过“瓶颈型”结构的气流到通过层析数据集获得的纯惯性忽略（达西体制）不可压缩流动流体的文章。对于所有蠕变流体（0–7×10 ^-03 m·s ^-1），在所有样品上，CFD计算得出的跨样品的单位压降与表观流体入口速度之间存在线性关系。）。观察到结构的渗透性取决于多孔介质的结构参数，最重要的是取决于其孔径开口。观察到了这些材料的渗透性和与孔结构相关的特性之间的线性图形关系，这些关系可以帮助最小化处理自支撑多孔金属所需的设计迭代次数。