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双相粒子图像速度测量可视化在微柱状界面表面的回流

Hyeon Taek Nam¹, Hyung Hee Cho², Seungro Lee^1,3

¹Department of Mechanical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea.

ACS applied materials & interfaces

|June 22, 2024

概括

微柱状结构通过增加回湿流量来改善流体供应,从而增强电子冷却的临界热流 (CHF). 这项研究引入了一种新的CHF模型,预测准确率为94%.

科学领域:

热传递热量转移的方法
流体动力学流体动力学
材料科学材料科学材料科学

背景情况:

沸热传递对于高效的电子冷却至关重要.
临界热流 (CHF) 限制了沸应用.
提高沸表面的流体供应可以增加CHF.

研究的目的:

为了研究用于CHF增强的微柱状接口表面.
通过测量回流量来分析CHF增强机制.
根据重新湿参数开发一个新的CHF模型.

主要方法:

采用二相粒子图像速度测量 (PIV) 技术进行回湿流量测量.
采用了不同粗度的微柱状结构 (MPS).
将MPS性能与平面表面进行比较.

主要成果:

MPS样本显示增强的CHF和重新湿流.
D04G10样本实现了比平面表面高1.84倍的CHF.
吸管诱导的流量对CHF增强有显著的贡献.

结论:

微柱状结构通过增加回湿流量,有效地增强了CHF.
结合重新湿参数的新型CHF模型显示出高预测准确性 (94%).
优化表面结构是先进冷却解决方案的关键.

关键词:

沸时的热传递是沸时的热传递关键的热量流量是一个关键的热量流量.微柱状结构是微柱状结构.重新湿流动的流量二相粒子图像速度测量技术

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