Abstract The present article investigates the melting process of aluminum foam/paraffin composite with low porosity by using experimental and numerical methods. Three composites with porosities 67%, 75%, and 84% are compared in terms of temperature variation, interface evolution, and total melting time. The experimental results indicate that the effect of thermal conduction and thermal convection on the melting process is affected greatly by the porosity. In the composite with porosity 84%, the heat flux ratio of convective heat transfer tends to be larger than 20%. Furthermore, the 3 D macro models are also established by using equilibrium model and non-equilibrium model.

中文翻译：

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低孔隙率泡沫铝/石蜡复合材料熔融过程的实验与数值研究

摘要 本文采用实验和数值方法研究了低孔隙率泡沫铝/石蜡复合材料的熔化过程。三种孔隙率分别为 67%、75% 和 84% 的复合材料在温度变化、界面演变和总熔化时间方面进行了比较。实验结果表明，热传导和热对流对熔化过程的影响受孔隙率的影响很大。在孔隙率为 84% 的复合材料中，对流传热的热通量比趋于大于 20%。此外，还利用均衡模型和非均衡模型建立了3D宏观模型。