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Optimization study relevant to louvered fin compact heat exchangers

机译：与百叶窗式紧凑型热交换器相关的优化研究

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摘要

Louvered fins provide a method for improving the heat transfer performance of compact heat exchangers by initiating the growth of new boundary layers. The growth leads to average convective heat transfer coefficients being higher than that which would occur for a continuous fin. It is desirable to optimize a compact heat exchanger to provide reduced fan power and increased heat transfer. This paper presents a numerical method for optimizing a compact heat exchanger design. The results of the current study show that optimization methods used in conjunction with CFD can be used to improve the performance of a louvered fin compact heat exchanger. Of the physically realizable geometries considered, better performance for a compact heat exchanger can be achieved for small fin pitches and small louver angles.
机译：百叶窗式散热片提供了一种通过启动新边界层的生长来提高紧凑型热交换器的传热性能的方法。这种增长导致平均对流传热系数高于连续散热片的平均对流传热系数。期望优化紧凑的热交换器以提供减小的风扇功率和增加的热传递。本文提出了一种优化紧凑型热交换器设计的数值方法。当前的研究结果表明，与CFD结合使用的优化方法可用于改善百叶窗式紧凑型热交换器的性能。在考虑的物理上可实现的几何形状中，对于小翅片节距和小百叶窗角度，可以实现紧凑型热交换器的更好性能。

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