International Journal of Numerical Methods for Heat & Fluid Flow ( IF 4.0 ) Pub Date : 2021-08-18 , DOI: 10.1108/hff-03-2021-0158 A. Baïri 1 , A. Velazquez 2
Purpose
The purpose of this study is to quantify the free convective heat transfer around a vertical cylindrical electronic component equipped with vertical fins representing an antenna, contained in a closed cavity maintained isothermal. Its cooling is provided via a water-based copper nanofluid whose volume fraction varies between 0% and 10%. Its effective viscosity and thermal conductivity are determined with the Brinkman and Maxwell models.
Design/methodology/approach
The governing equation system has been solved by means of the volume control method based on the SIMPLE algorithm.
Findings
A Nusselt-Rayleigh correlation valid in the 3.32 × 105 – 6.74 × 107 Rayleigh number range is proposed. It allows the thermal sizing of the considered system used in high power electronics to ensure their correct operation in the worst conditions.
Originality/value
The proposed correlations are original and unpublished.
中文翻译:
带有翅片的垂直圆柱形电子元件周围的水铜纳米流体自然对流
目的
本研究的目的是量化垂直圆柱形电子元件周围的自由对流热传递,该电子元件配备有代表天线的垂直翅片,包含在保持等温的封闭腔中。它的冷却是通过体积分数在 0% 和 10% 之间变化的水基铜纳米流体提供的。其有效粘度和热导率由 Brinkman 和 Maxwell 模型确定。
设计/方法/方法
控制方程组采用基于 SIMPLE 算法的体积控制方法求解。
发现
提出了在 3.32 × 10 5 – 6.74 × 10 7瑞利数范围内有效的 Nusselt-Rayleigh 相关性。它允许对大功率电子设备中使用的所考虑系统进行热选型,以确保它们在最坏的条件下正确运行。
原创性/价值
建议的相关性是原创的且未发表。