旋转筒配置对Cu-水纳米流体在通风腔中的热传递的影响:COMSOL多物理基础研究
Usman Afzal1, Khalid Masood2, Nehad Ali Shah1
1Department of Mechanical Engineering, Sejong University, Seoul, 05006, South Korea.
Scientific reports
|October 14, 2025
概括
这项研究探讨了使用Cu-水纳米流体的三个旋转圆柱体在通风腔中的热传递. 优化气旋转和纳米颗粒度可增强对流式热传递,用于紧型冷却系统.
科学领域:
- 热传递热量转移的方法
- 流体动力学 流体动力学
- 纳米材料是一种纳米材料.
背景情况:
- 紧的热管理系统需要优化热传输.
- 带有旋转筒的通风腔中的强制对流对于电子冷却等应用至关重要.
- 之前的研究探讨了有限的旋转气配置;这项研究检查了更复杂的设置.
研究的目的:
- 为了研究强迫对流传热传递和流体流动在一个方形通风腔与三个旋转的圆柱塞满Cu-水纳米流体.
- 分析不同气旋转配置和纳米颗粒度对热性能的影响.
- 为设计先进的冷却系统提供见解.
主要方法:
- 使用了加勒金有限元素方法 (FEM) 与COMSOL多物理 6.3.3.
- 解决了动量和能量传输的无维治理方程.
- 进行了不同雷诺兹数,旋转雷诺兹数和纳米粒子体积分数的模拟.
主要成果:
- 达到16.405的最大努塞尔特数是当所有三个气在[公式:参见文本]旋转时,与[公式:参见文本]纳米粒子体积分数和[公式:参见文本]雷诺兹数.
- 中心气 (C2) 的不旋转显著减少了由于压抑的流量而导致的热传递.
- 气旋转和纳米颗粒度的战略调整可以增强局部的对流热传递.
结论:
- 气旋转模式和纳米颗粒度是优化通风腔中的热传递的关键参数.
- 该研究为设计利用旋转增强的紧型冷却系统提供了实际见解.
- 这项研究促进了对纳米流体系统中复杂的流体流动和热传递现象的理解.
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