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首页> 外文期刊>International Journal of Heat and Mass Transfer >Heat transfer enhancement on a microchannel heat sink with impinging jets and dimples
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Heat transfer enhancement on a microchannel heat sink with impinging jets and dimples

机译:撞击射流和酒窝的微通道散热器的传热增强

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摘要

The introduction of dimples to heat transfer surface can effectively improve the heat transfer performance of a microchannel heat sink with impinging jets (MIJ). MIJs with different dimple structures, including convex, concave, and mixed dimples, are compared with MIJs without dimples by numerical simulation and the application of the field synergy principle. Results indicate that (1) MIJs with convex dimples exhibited the best cooling performance, followed those without dimples, with mixed dimples, and with concave dimples; (2) the application of convex dimples could decrease flow resistance in MIJs; and (3) among all tested cases, MIJs with convex dimples exhibited the best overall performance, followed by MIJs without dimples, with mixed dimples, and with concave dimples.
机译:将凹痕引入传热表面可以有效地改善带有冲击射流(MIJ)的微通道散热器的传热性能。通过数值模拟和场协同原理的应用,比较了具有不同凹坑结构(包括凸,凹和混合凹坑)的MIJ与没有凹坑的MIJ。结果表明:(1)带有凸凹坑的MIJ表现出最佳的冷却性能,其次为无凹坑,混合凹坑和凹坑的MIJ。 (2)凸凹窝的应用可降低MIJ的流动阻力; (3)在所有测试案例中,具有凸凹痕的MIJ表现出最佳的整体性能,其次是无凹痕,混合凹痕和凹凹痕的MIJ。

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  • 来源
  • 作者单位

    School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074 PR China;

    School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074 PR China;

    School of Civil Engineering and Architecture, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070 PR China;

    C. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta 30332, USA;

    Department of Mechanical, Aerospace, and Nuclear Engineering. Rensselaer Polytechnic Institute, Troy, NY 12180, 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

    MicroChannel heat sink with impinging jets; Heat transfer enhancement; Dimple; Pressure drop;

    机译:带有撞击喷嘴的微通道散热器;传热增强;酒窝;压力下降;

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