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首页> 外文期刊>International Journal of Heat and Mass Transfer >Development of a theoretical model for predicting the thermal performance characteristics of a vertical pin-fin array heat sink under combined forced and natural convection with impinging flow
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Development of a theoretical model for predicting the thermal performance characteristics of a vertical pin-fin array heat sink under combined forced and natural convection with impinging flow

机译：力流和自然对流联合冲击流下垂直钉翅片阵列散热器热性能特性预测理论模型的建立

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摘要

A comprehensive theoretical and experimental study was carried out on the thermal performance of a pin-fin heat sink. A theoretical model was formulated that has the capability of predicting the influence of various geometrical, thermal, and flow parameters on the effective thermal resistance of the heat sink. An experimental technique was developed for measuring the thermal performance of the heat sink, and the overall convective heat transfer coefficient for the fin bundle. Experiments were carried out, and correlations obtained, for a wide range of parameters for pure natural convection and for combined forced and natural convection. The predictive capability of the theoretical model was verified by comparison with experimental data including the influence of various fin parameters and the existence of an optimum fin spacing.
机译：对针翅式散热器的热性能进行了全面的理论和实验研究。建立了一个理论模型，该模型具有预测各种几何，热和流量参数对散热器有效热阻的影响的能力。开发了一种实验技术，用于测量散热器的热性能以及翅片束的整体对流传热系数。对纯自然对流以及强制和自然对流组合的各种参数进行了实验，并获得了相关性。通过与包括各种鳍参数的影响和最佳鳍间距的存在在内的实验数据进行比较，验证了理论模型的预测能力。

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