Abstract The cooling capability of heat sinks is important for a central processing unit (CPU). In this work, simulation has been done to study heat transfer (HT) in a heat sink (HS) mounted on the triangular cylinder chip of a CPU is studied, to explore the thermofluid behaviour of the designed micro-pin-fin heat sink. 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 heat sink. Turbulent SST model is applied to capture turbulence regime in the system. The heat transfer and pressure coefficient were obtained at different Reynolds number (Re) (i.e. different inlet velocities). As shown in this study, the Nusselt number (Nu) increases with increase in air flow velocity which enhance the heat extraction from CPU.

中文翻译：

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三角形微针翅片冷却 CPU 散热器：数值研究

摘要 散热器的冷却能力对于中央处理单元 (CPU) 很重要。在这项工作中，模拟研究了安装在 CPU 三角形圆柱芯片上的散热器 (HS) 中的热传递 (HT)，以探索设计的微针翅片散热器的热流体行为。空气冷却方法用于排热。该数值工作考虑了微针翅片的入口湍流强度 (TI) 和翅片直径 (D) 对散热器性能的影响。湍流 SST 模型用于捕获系统中的湍流状态。在不同的雷诺数 (Re)（即不同的入口速度）下获得了传热和压力系数。如本研究所示，