在热辐射效应下混合对流传热传递的比较动力学,在双拉伸表面的多孔介质流动下,在双拉伸表面的多孔介质流动下
Mohammad Mahtab Alam1, Mubashar Arshad2, Fahad M Alharbi3
1Department of Basic Medical Sciences, College of Applied Medical Science, King Khalid University, 61421, Abha, Saudi Arabia.
Scientific reports
|August 7, 2023
概括
这项研究探讨了热辐射如何影响纳米流体流动. 三混合纳米流体显示改善的传热和减少皮肤摩擦,提供工业效益.
科学领域:
- 流体动力学 流体动力学
- 热传递是一种热传递.
- 纳米技术 纳米技术
背景情况:
- 纳米流体和混合纳米流体提供增强的传热率,对于工业应用至关重要.
- 了解热辐射对流体流动的影响对于优化热交换过程至关重要.
研究的目的:
- 为了研究热辐射对水基旋转纳米流体的速度和温度概况的影响.
- 用铜,和氧化纳米颗粒制备的纳米流体的性能进行比较分析.
主要方法:
- 使用相似性转换将治理方程转换为普通微分方程 (ODEs).
- 在 MATLAB 中使用 bvp-4c 程序进行了数值模拟.
- 使用铜,和氧化纳米粒子制备了三种不同的纳米流体.
主要成果:
- 三混合纳米流体显示出更高的传热率,并最大限度地减少了皮肤摩擦.
- 在特定的混合对流条件下,三混合纳米流体的皮肤摩擦系数降低了高达50%.
- 随着热辐射和普兰特尔数的增加,传热系数增加了大约60%.
结论:
- 与单个纳米粒子纳米流体相比,三混合纳米流体表现出优越的热性能和降低的阻力.
- 热辐射显著提高旋转纳米流体系统中的传热率.
- 这些发现为设计利用纳米流体的高效传热系统提供了宝贵的见解.
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