Numerical predictions of heat transfer and flow characteristics of heat sinks with ribbed and dimpled surfaces in laminar flow
Numerical predictions of heat transfer and flow characteristics of heat sinks with ribbed and dimpled surfaces in laminar flow
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DOI：
10.1080/10407780701853371
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发表时间：
2008-01-01
影响因子：
2
通讯作者：
Narasimhan, Susheela
中科院分区：
文献类型：
--
作者：
Wee, Hwabok;Zhang, Qiang;Narasimhan, Susheela
利用FLUENT 6.2.16数值模拟软件对层流条件下光滑、肋状和凹坑表面散热器的稳态流动特性和表面努塞尔数分布进行了研究。提出的是本地和空间平均表面努塞尔数，以及分布的数值预测的流动特性内的散热器通道。这些包括静压、速度和流向涡量在流动横截面上的分布。这些结果是有价值的，因为提供的设计信息，以优化散热器的热性能，而不使用昂贵和耗时的实验。
Steady flow characteristics and surface Nusselt number distributions of heat sinks with smooth, ribbed, and dimpled surfaces are investigated in laminar flow using the numerical code FLUENT 6.2.16. Presented are local and spatially averaged surface Nusselt numbers, as well as distributions of numerically predicted flow characteristics within the heat sink passages. These include distributions of static pressure, velocity, and streamwise vorticity in flow cross-sectional planes. These results are valuable because of the design information provided to optimize heat sink thermal performance, without the use of costly and time-consuming experiments.