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Numerical analysis of micro-pin-fin heat sink cooling in the mainboard chip of a CPU

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Abstract

The cooling capability of heat sinks is important for a central processing unit (CPU). In this work, simulation has been done to investigate heat transfer (HT) in a heat sink (HS) mounted on the circular cylinder chip of a CPU that is studied and to explore the thermofluid behavior of the designed micro-pin-fin heat sink (MPFHS). Air cooling methods are used for heat extraction. This numerical work considers the effects of inlet turbulence intensity (TI) and fin diameter (D) of the micro-pin-fin on the performance of the HS. Turbulent SST model is used to explore turbulence regime in the system. The HT and pressure coefficient were obtained at different Reynolds number (Re) (i.e., different inlet velocities). As shown in this study, the Nusselt number (Nu) rises with the increase in air flow velocity which enhances the heat extraction from CPU.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Vidya Vihar, Rajasthan, 333 031, India

    S. Bhattacharyya

  2. Department of Physics, College of Sciences, King Faisal University, PO Box 380, Alahsa, 31982, Saudi Arabia

    Basma Souayeh

  3. Department of Mechanical Engineering, MCKV Institute of Engineering, Howrah, West Bengal, 711204, India

    A. Banerjee

  4. Department of Mechanical Engineering, Dr. Sudhir Chandra Sur Degree Engineering College, Kolkata, India

    R. Sarkar

  5. Faculty of Medicine and Health Sciences, Ghent University, 9000, Gent, Belgium

    Mohammad Rahimi-Gorji

  6. Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam

    Hoang Minh Nguyen

  7. Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam

    Hoang Minh Nguyen

Authors
  1. S. Bhattacharyya
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  2. Basma Souayeh
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  3. A. Banerjee
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  4. R. Sarkar
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  5. Mohammad Rahimi-Gorji
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  6. Hoang Minh Nguyen
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Contributions

SB presented the idea. He developed the theory and AB and RS helped him to perform the computations. MR-G verified the numerical methods. BS and NMH are expert in heat transfer and mathematical modelling. They encouraged SB to work on heat sink cooling of the CPU. Based on the reviewers comments, BS and NMH helped to improve the manuscript. Also, they wrote some sections of results and discussions and supervised the findings of this work. All authors discussed the results and contributed to the final manuscript.

Corresponding author

Correspondence to Hoang Minh Nguyen.

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Bhattacharyya, S., Souayeh, B., Banerjee, A. et al. Numerical analysis of micro-pin-fin heat sink cooling in the mainboard chip of a CPU. Eur. Phys. J. Plus 135, 432 (2020). https://doi.org/10.1140/epjp/s13360-020-00359-y

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  • DOI: https://doi.org/10.1140/epjp/s13360-020-00359-y

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