Abstract With the recent trend of miniaturization and high-power output, effective heat dissipation has become the top priority in several industrial applications. This work contributes to the novel and efficient cooling technique that utilizes the liquid metal as working fluid. A numerical analysis of laminar flow and forced convective heat transfer of Galinstan through a mini-channel heat sink exposed to a constant heat flux has been presented. A detailed parametric analysis of the influence of heat sink's geometry, and the inlet velocity on the pressure drop, pumping power and the maximum heat flux has been carried out. Optimized heat sink's dimensions and inlet velocity are obtained. Furthermore, the numerical results are compared with the analytical correlations and discussion concerning the agreement and discrepancy is made. In addition, the flow and heat transfer performance of mini-channel heat sink cooling using liquid metal, nanofluid and water are compared, which intuitively shows the advantage of using liquid metal as coolant.

中文翻译：

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液态金属冷却微通道散热器层流和传热的数值研究

摘要 随着近年来小型化和大功率输出的趋势，有效散热已成为多个工业应用的重中之重。这项工作有助于开发利用液态金属作为工作流体的新型高效冷却技术。已经提出了通过暴露于恒定热通量的微型通道散热器的 Galinstan 层流和强制对流传热的数值分析。对散热器的几何形状和入口速度对压降、泵送功率和最大热通量的影响进行了详细的参数分析。获得优化的散热器尺寸和入口速度。此外，将数值结果与解析相关性进行了比较，并对一致性和差异进行了讨论。