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首页> 外文期刊>International Journal of Heat and Mass Transfer >Structural optimization of two-dimensional cellular metals cooled by forced convection
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Structural optimization of two-dimensional cellular metals cooled by forced convection

机译：强制对流冷却的二维多孔金属的结构优化

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摘要

We report in this paper analytical results on the optimal design of two-dimensional all metallic sandwiches having lightweight cellular cores subjected to laminar forced convection at fixed pumping power. Various types of core topology are exploited, such as square cells and equilateral triangular cells. The intersection-of-asymptotes method is employed for the optimal design, whilst the fin analogy model is used to account for the contribution of solid conduction. To check the validity and accuracy of the analytical model, the predictions are compared with those obtained using the method of computational fluid dynamics (CFD). The structural parameters of the sandwich optimized include overall length and cell size, with the latter dependent upon porosity and the number of cells along sandwich height. The parameters that may influence the optimally designed sandwich structure are discussed, including overall structural dimensions, pumping power, solid conductivity, and coolant properties.
机译：我们在本文中报告分析结果，即二维全金属三明治的最佳设计，该三明治具有轻质多孔芯，在固定泵浦功率下经受层流强制对流。开发了各种类型的核心拓扑，例如方形单元和等边三角形单元。渐近线相交法用于优化设计，而鳍状模型用于说明固体传导的影响。为了检查分析模型的有效性和准确性，将预测与使用计算流体力学（CFD）方法获得的预测进行比较。优化的夹心结构参数包括总长度和孔尺寸，后者取决于孔隙率和沿夹心高度的孔数量。讨论了可能影响最佳设计夹层结构的参数，包括整体结构尺寸，泵送功率，固体电导率和冷却液性能。

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