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首页> 外文期刊>Journal of enhanced heat transfer >EFFECT OF SHORT PIN FIN WITH DIFFERENT SHAPES AND ARRANGEMENTS ON THERMAL RESISTANCE OF MICRO HEAT SINK
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EFFECT OF SHORT PIN FIN WITH DIFFERENT SHAPES AND ARRANGEMENTS ON THERMAL RESISTANCE OF MICRO HEAT SINK

机译：短销翅片用不同形状的影响及其布置对微散热器的热阻

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摘要

In the present study, thermohydraulic characteristics of heat sinks with short micro pin fin (height of fin shorter than the total height of heat sink) of different shapes (square and elliptical) and different arrangements (interrupted and staggered) are studied, considering deionized water as the coolant. Experiments are conducted on silicon heat sink fabricated using wet etching. The pressure drop and temperature at different locations of micro pin fin heat sink are measured in the experiments. A numerical model is developed and validated with the experimental results with suitable boundary conditions. The numerical and experimental results show temperature variations in the inlet and outlet collectors of the micro pin fin heat sink due to conjugate heat transfer effects. The thermal resistance of three different arrangements is compared. It is found that the shape of the pin fin has a considerable effect on the thermal resistance as compared to the arrangement of a short pin fin in the micro heat sink.
机译：在本研究中，考虑去离子水，研究了具有短微销翅片的散热器的热液压特性（比散热器的总高度），以及不同的布置（中断和交错），考虑去离子水作为冷却剂。在使用湿法蚀刻制造的硅散热器上进行实验。在实验中测量微销翅片散热器的不同位置处的压降和温度。通过合适的边界条件开发和验证了数值模型并验证了实验结果。数值和实验结果显示了由于共轭传热效应引起的微销翅片散热器的入口和出口收集器中的温度变化。比较了三种不同布置的热阻。结果发现，与微散热器中的短销翅片的布置相比，销钉的形状对热阻相当效果。

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