在一个指数式拉伸的表面上,对不稳定的触角高压模糊混合纳米流体进行数值研究
Muhammad Nadeem1, Imran Siddique1, Zakara Riaz2
1Department of Mathematics, University of Management and Technology, Lahore, 54770, Pakistan.
Scientific reports
|September 20, 2023
概括
这项研究研究了模糊的混合纳米流体流与传热,发现混合纳米流体提供优越的传热比纳米流体. 模糊分析揭示了影响金属冷却等应用中的热性能的关键因素.
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
- 模糊的逻辑 模糊的逻辑
背景情况:
- 在一个指数式拉伸的表面上研究触角的过度波动模糊混合纳米流体的不稳定的MHD流.
- 考虑热传输机制,包括朱尔加热,非线性热辐射和对流边界条件.
- 使用乙烯糖醇 (EG) 作为基础流体与铜 (Cu) 和另一种纳米材料进行增强的热性能.
研究的目的:
- 分析模糊体积百分比对传热特性的影响.
- 探索各种参数的影响,如热辐射,磁场和纳米粒子度对流体流动和热传输的影响.
- 使用模糊分析,将混合纳米流体的传热效率与传统纳米流体进行比较.
主要方法:
- 非线性部分微分方程 (PDEs) 被转换为普通微分方程 (ODEs).
- 使用MATLAB的bvp4c解决方案的数值方法被用来获得解决方案.
- 图形分析用于仔细检查流速,热热,阻力和努塞尔特数的变化.
主要成果:
- 增加的热辐射,功率定律指数和纳米粒子体积分数可以增强热传递.
- 皮肤摩擦随着权力定律指数,森堡数和比值参数的增加而减少,但随着磁性参数的增加而增加.
- 热传递速率由更高的韦森伯格数和纳米粒子体积分数增加.
结论:
- 混合纳米流体显示出比纳米流体更高的传热率,模糊分析证实了这一点.
- 该研究提供了关于优化热传输的见解,用于纸制造,金属板冷却和晶体生长中的应用.
- 模糊逻辑被有效地集成到纳米粒子体积百分比的不确定性模型中,增强了热性能的分析.
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