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首页> 外文期刊>International Journal of Heat and Mass Transfer >Analytical heat diffusion models for different micro-channel heat sink cross-sectional geometries
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Analytical heat diffusion models for different micro-channel heat sink cross-sectional geometries

机译：不同微通道散热器横截面几何形状的解析热扩散模型

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摘要

This study explores heat diffusion effects in micro-channel heat sinks intended for electronic cooling applications. Detailed analytical models are constructed for heat sinks having micro-channels with rectangular, inverse trapezoidal, triangular, trapezoidal, and diamond-shaped cross sections. Solutions are presented for both monolithic heat sinks and heat sinks with perfectly insulating cover plates. The analytical results are compared to detailed two-dimensional numerical models of the same cross-sections over a broad range of cover plate thermal conductivities for different micro-channel aspect ratios, fin spacings and Biot numbers. These comparisons show the analytical models provide accurate predictions for Biot numbers of practical interest. This study proves the analytical models are very effective tools for the design and thermal resistance prediction of micro-channel heat sinks found in electronic cooling applications.
机译：这项研究探索了用于电子冷却应用的微通道散热器中的热扩散效应。针对具有微通道的散热器构建了详细的分析模型，这些微通道具有矩形，反梯形，三角形，梯形和菱形横截面。提出了整体式散热器和具有完美绝缘盖板的散热器的解决方案。对于不同的微通道长宽比，翅片间距和比奥特数，将分析结果与在较大范围的盖板热导率下相同横截面的详细二维数值模型进行比较。这些比较表明，分析模型为实际感兴趣的比奥特数提供了准确的预测。这项研究证明，分析模型是用于电子冷却应用中的微通道散热器的设计和热阻预测的非常有效的工具。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2010年第20期|P.4002-4016|共15页
  • 作者

    Sung-Min Kim; Issam Mudawar;

  • 作者单位

    Boiling and Two-Phase Flow Laboratory (BTPFL), Purdue University International Electronic Cooling Alliance (PUIECA), Mechanical Engineering Building, 585 Purdue Mall West Lafayette, IN 47907-2088, USA;

    rnBoiling and Two-Phase Flow Laboratory (BTPFL), Purdue University International Electronic Cooling Alliance (PUIECA), Mechanical Engineering Building, 585 Purdue Mall West Lafayette, IN 47907-2088, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    analytical heat diffusion model; micro-channel heat sink; flow boiling;

    机译：解析热扩散模型微通道散热器;流动沸腾;

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