通过在磁化卡森-斯宾尔铁纳米流体中螺旋式拉伸板开发的动态现象
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1Department of Mathematics, University of Gour Banga, Malda 732 103, India.
Heliyon
|August 14, 2023
概括
这项研究模拟了磁化卡森纳米流体在拉伸板上的流动,揭示了辐射增强热场. 增加旋转会增加皮肤摩擦,但会降低努塞尔特数,影响传热应用.
科学领域:
- 流体动力学 流体动力学
- 热传递是一种热传递.
- 纳米材料科学科学 纳米材料科学
背景情况:
- 纳米流体在化学工程,电子和能源应用中具有重大潜力.
- 在先进的热管理方面,正在探索spinel ferrite (MnFe2O4) 纳米流体.
- 卡森流体模型描述了与工业过程相关的非牛顿流体行为.
研究的目的:
- 为了建模和数值模拟磁化卡森基旋铁纳米流体的流动.
- 为了研究非线性热辐射,粘性/朱尔加热和热生成/吸收对传热的影响.
- 分析诸如辐射,生物数和旋转等参数对流动特征的影响.
主要方法:
- 支配部分微分方程被转化为普通微分方程,使用相似性变量.
- 使用第四阶Runge-Kutta方法与射击算法 (MATLAB中的bvp4c解决程序) 的计算方法被采用.
- 用图形和表格表示来分析结果.
主要成果:
- 根据辐射参数和Biot数,观察到热场和边界层厚度的放大.
- 增加旋转参数导致局部皮肤摩擦系数增加.
- 旋转参数的增加削弱了当地的努塞尔特数,表明传热效率下降.
结论:
- 该研究提供了关于在磁性和流量条件下纳米流体热传递增强的见解.
- 这些发现适用于工业过程,如聚合物挤出和磁性存储装置设计.
- 数值模型有效地捕捉了纳米流体复杂的热和水力动力学行为.
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