通过Koo-Kleinstreuer-Li (KKL) 模型通过水平表面经过水磁纳米流体流的不可逆性分析
Syed M Hussain1, Faisal Shahzad2, Nek Muhammad Katbar3,4
1Department of Mathematics, Faculty of Science, Islamic University of Madinah, 42351, Saudi Arabia.
Heliyon
|July 24, 2023
概括
这项研究检查了Jeffrey纳米流体的热传递与欧米加热和MHD效应. 发动机油中的氧化铜纳米颗粒降低速度,但增强热量,对能源设备有影响.
科学领域:
- 流体动力学 流体动力学
- 纳米技术 纳米技术
- 热传递是热传递的过程.
背景情况:
- 磁动力学 (MHD) 边界层流量在许多工业应用中至关重要.
- 与传统流体相比,纳米流体提供了增强的热性能.
- 了解热量产生和粘性散热是优化传热的关键.
研究的目的:
- 分析欧米加热,热量产生和粘性消散对杰弗里纳米流体流动的影响.
- 通过Koo-Kleinstreuer-Li (KKL) 模型在拉伸表面上研究氧化铜发动机油纳米流体的传热特性.
- 探索各种参数 (MHD,Prantl,Deborah,Eckert数,纳米粒子大小) 对流量和热场的影响.
主要方法:
- 支配部分微分方程 (PDEs) 通过相似性转换被转换为非线性普通微分方程 (ODEs).
- 使用在MATLAB.中实现的凯勒盒子方法获得了数值解决方案.
- 结果通过图表和表格可视化,以说明参数效应.
主要成果:
- 氧化铜发动机油纳米流体表现出较低的速度和阻力,但与基液相比增加了热量.
- 升高的埃克特数,纳米粒子大小和磁性参数降低了传热率.
- 增加Deborah的数量增加了拉力和传热率.
结论:
- 在发动机油中纳米颗粒的含有改善了热传递,尽管减少了流体的速度.
- 这项研究为优化灯泡和加热设备等设备的热传输提供了宝贵的见解.
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