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Numerical Study of Fluid Flow and Heat Transfer Characteristics in a Cone-Column Combined Heat Sink

Author

Listed:
  • Wei Zheng

    (School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Jianjun Sun

    (School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Chenbo Ma

    (School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Qiuping Yu

    (School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Yuyan Zhang

    (School of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Tao Niu

    (Jiangsu Sulida Advanced Technology Co., Ltd., Nanjing 210039, China)

Abstract

Temperature has a great influence on the normal operation and service life of high-power electronic components. To cope with the increasingly severe heat problems in integrated circuits, an enhanced heat transfer factor E is introduced to evaluate the comprehensive heat transfer performance of microchannel heat sinks (MCHS). The computational fluid dynamics (CFD) software was used to numerically study the fluid flow and heat transfer characteristics in the cone-column combined heat sink. The research results obtained the velocity field and pressure field distribution of the heat sink structure in the range of 100 ≤ Re ≤ 700. When Re changes, the change law of pressure drop Δ P , friction factor f , average Nussel number Nu ave , average substrate temperature T , and enhanced heat transfer factor E , are compared with the circular MCHS. The results show that the uniform arrangement of the cones inside the cone-column combined heat sink can change the flow state of the cooling medium in the microchannel and enhance the heat transfer. In the range of 100 ≤ Re ≤ 700, the base temperature of the cone-column combined heat sink is always lower than the base temperature of the circular MCHS, and the average Nusselt number Nu ave is as high as 2.13 times that of the circular microchannel. The enhanced heat factor E is 1.75 times that of the circular MCHS, indicating that the comprehensive heat transfer performance of the cone-column combined heat sink is significantly better than that of the circular microchannel.

Suggested Citation

  • Wei Zheng & Jianjun Sun & Chenbo Ma & Qiuping Yu & Yuyan Zhang & Tao Niu, 2021. "Numerical Study of Fluid Flow and Heat Transfer Characteristics in a Cone-Column Combined Heat Sink," Energies, MDPI, vol. 14(6), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1605-:d:516609
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    Cited by:

    1. Peng Sun & Yiping Lu & Jianfei Tong & Youlian Lu & Tianjiao Liang & Lingbo Zhu, 2021. "Study on the Convective Heat Transfer and Fluid Flow of Mini-Channel with High Aspect Ratio of Neutron Production Target," Energies, MDPI, vol. 14(13), pages 1-15, July.
    2. Xiongfei Zheng & Xue Hu & Lixin Zhang & Xinwang Zhang & Feng Chen & Chunliang Mai, 2022. "Study on the Effect of Spoiler Columns on the Heat Dissipation Performance of S-Type Runner Water-Cooling Plates," Energies, MDPI, vol. 15(9), pages 1-13, April.

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