Abstract A single or an array of metallic porous structures of various geometries are introduced on the inside surface of a partially heated wall of a channel with air or water flow. Forced convective heat transfer rate from the heated wall to the fluid, as well as the average pressure drop along the channel are numerically studied. Effects of the aluminum porous block's structural parameters such as porosity (ϵ), Darcy number (Da) and Forchheimer coefficient (F) are taken into account. The optimum geometrical conditions of the system is extensively explored considering parameters such as blocks' height, width and spacing between them. Our results demonstrate great potential for metal foams to perform as heat sinks and pave the way for their further implementation in applications such as solar thermal collectors and electronic cooling.

中文翻译：

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具有单个或一系列金属泡沫障碍物的通道中的散热增强

摘要 在带有空气或水流的通道的部分加热壁的内表面上引入单个或一系列不同几何形状的金属多孔结构。数值研究了从受热壁到流体的强制对流传热率，以及沿通道的平均压降。考虑了铝多孔块结构参数的影响，例如孔隙率 (ϵ)、达西数 (Da) 和 Forchheimer 系数 (F)。考虑到诸如块的高度、宽度和它们之间的间距等参数，广泛地探索了系统的最佳几何条件。我们的研究结果表明，泡沫金属作为散热器具有巨大的潜力，并为它们在太阳能集热器和电子冷却等应用中的进一步实施铺平了道路。