在使用可变磁场的双连续扩张背后增强热能转移,利用可变磁场
Hamid-Reza Bahrami1, Mahziyar Ghaedi2
1Department of Mechanical Engineering, Qom University of Technology, P.O. Box 37195-1519, Qom, 37181 46645, Iran. h_tbahrami@yahoo.com.
Scientific reports
|May 3, 2024
概括
不均的磁场通过改善热传输来增强电子设备的冷却. 这种被动技术可以在没有几何变化的情况下提高特定部分的冷却速度,从而提供显著的热管理改进.
科学领域:
- 流体动力学 流体动力学
- 热传递热量转移的方法
- 磁动力学是一种磁动力学.
背景情况:
- 电子设备产生热量,需要有效的冷却解决方案.
- 带有双向后的冷却管道往往在角区域呈现较差的热传输.
- 被动磁场控制提供了一种方法,可以在不改变内部几何形状的情况下增强冷却.
研究的目的:
- 研究使用不均的磁场来改善2D冷却管道中的热能传递.
- 分析磁场参数对传热增强的影响.
- 在散热有限的地区优化冷却效率.
主要方法:
- 用商业有限体积软件解决了流体流量和热传输的控制方程.
- 模拟了一个二维的冷却管道,有一个双向后面的步骤.
- 雷诺兹数,二极管位置和强度,二极管数量等参数被系统地变化.
主要成果:
- 不均的磁场显著影响热能转移.
- 一个单双极将平均传热量增加约22%.
- 两个磁场使平均传热量增加了约40%,磁源强度增加了24%.
结论:
- 不均磁场是一种有效的被动方法,用于增强冷却管道中的热传递.
- 磁二极体的数量和强度可以优化,以提高冷却性能.
- 这种技术为增强复杂几何形状的电子设备的冷却提供了可行的解决方案.
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