用周期性磁力和灵敏度分析对非线性辐射纳米卡森和麦克斯韦尔流体进行比较模拟
Saiful Islam1, Md Yousuf Ali2, Sk Reza-E-Rabbi3
1Department of Mathematics, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh.
Heliyon
|April 18, 2024
概括
这项研究检查了卡森和麦克斯韦流体中的磁电-水力学,揭示了非线性辐射对热传递有重大影响. 与麦克斯韦流体相比,卡森流体对传热速率的影响更大.
科学领域:
- 流体动力学 流体动力学
- 磁动力学是一种磁动力学.
- 热传递热量转移的方法
背景情况:
- 像卡森和麦克斯韦这样的非牛顿流体在各种工业,科学和医疗应用中至关重要.
- 了解磁性水力动力学 (MHD) 辐射效应对于优化涉及流体流动和热传递的过程至关重要.
研究的目的:
- 在非线性辐射和阿雷尼乌斯激活能量下的卡森和麦克斯韦流体中研究周期性MHD辐射效应.
- 分析各种物理参数对热量和质量转移特征的影响.
主要方法:
- 使用边界层近似的非维方程的制定.
- 通过显式有限差异方法 (EFDM) 获得的数值解决方案.
- 稳定性和收性测试 EFDM 稳定性,加上响应表面方法 (RSM) 用于灵敏度分析.
主要成果:
- 非线性热辐射对温度和度概况的显著影响大于线性辐射对两种流体类型的显著影响.
- 卡森流体在非线性辐射下对平均传热速率 (比马克斯韦流体高8.6%) 有更强的影响.
- 减少的布朗运动 (Nb) 和热泳 (Nt) 降低了传热速率,Ra对努塞尔特数产生了积极的影响,而Nb和Nt则表现出负的灵敏度.
结论:
- 非线性辐射和MHD效应在Casson和Maxwell流体的热液压性能中起着至关重要的作用.
- 在特定的辐射条件下,卡森液体与麦克斯韦液体相比,表现出优越的传热特性.
- 灵敏度分析突出了辐射和布朗运动参数对传热效率的重大影响.
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