Experimental measurements of the pressure drop across porous metals have been compared with computational fluid dynamics simulations, for the first time, for structures typified by large pores with small interconnecting “windows”. Structural information for the porous structures was obtained from X-ray computed tomography and a robust methodology for developing a representative volume element is described. The modelling approach used was able to reliably predict the pressure drop behaviour within the Forchheimer regime. The methodology was extended to simulate flow through geometrically-adapted, “semi-virtual” pore structures and this approach could prove to be an invaluable tool in the design of porous metal components for applications involving fluid flow.

中文翻译：

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Darcy-Forchheimer 状态下复制多孔铝的压降测量和模拟

多孔金属压降的实验测量结果与计算流体动力学模拟首次进行了比较，用于以大孔和小互连“窗口”为代表的结构。多孔结构的结构信息是从 X 射线计算机断层扫描中获得的，并且描述了用于开发代表性体积元素的稳健方法。所使用的建模方法能够可靠地预测 Forchheimer 范围内的压降行为。该方法被扩展到模拟通过几何适应的“半虚拟”孔隙结构的流动，这种方法可以证明是设计多孔金属部件用于涉及流体流动的应用的宝贵工具。