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This research explores the thermal and hydraulic performance of heat sinks with NACA 0012 pin fins using numerical analysis in ANSYS 19.3. Various parameters, such as fin height ratio \(h_{f} /h_{duct}\) streamwise pitch ratio \(P_{x} /L_{hs}\) , and Reynolds number, are examined. The NACA fins demonstrate improved heat transfer by increasing surface area, enhancing fluid mixing, and minimizing flow separation, which leads to higher Nusselt numbers and more even cooling. The optimal design, featuring a fin height ratio of 1 and a pitch ratio of 0.35, achieves maximum heat dissipation but results in increased pressure drops due to higher flow resistance. The study emphasizes the balance between thermal efficiency and pressure drop in optimizing heat sink performance.

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Computational Analysis on Plate Fin Heat Sink with NACA 0012 Pin Fins

  • 会议论文

  • 发表日期：

    2026年

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  • Ashish Dixit,
  • Rajesh Maithani,
  • Sachin Sharma,
  • Ayushman Srivastav

摘要

This research explores the thermal and hydraulic performance of heat sinks with NACA 0012 pin fins using numerical analysis in ANSYS 19.3. Various parameters, such as fin height ratio \(h_{f} /h_{duct}\) streamwise pitch ratio \(P_{x} /L_{hs}\) , and Reynolds number, are examined. The NACA fins demonstrate improved heat transfer by increasing surface area, enhancing fluid mixing, and minimizing flow separation, which leads to higher Nusselt numbers and more even cooling. The optimal design, featuring a fin height ratio of 1 and a pitch ratio of 0.35, achieves maximum heat dissipation but results in increased pressure drops due to higher flow resistance. The study emphasizes the balance between thermal efficiency and pressure drop in optimizing heat sink performance.