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Delineating impact of viscous dissipation and non-uniform heat source/sink on viscous fluid flow towards a stretching surface
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering ( IF 2.3 ) Pub Date : 2021-10-26 , DOI: 10.1177/09544089211050461
Junfeng Yin 1 , Xianqin Zhang 2 , Aamir Hamid 3 , Muhammad Israr Ur Rehman 3 , Dezhi Yang 4 , Saif Ullah 5
Affiliation  

The proposed model is applicable to a wide range of engineering and technological activities, including polymer manufacturing, chemical production, nuclear energy, electronics, and aerodynamics. The current work is being performed as a result of such applications. This paper deals with the mechanism of heat transport in magnetohydrodynamics flow of an electrically conducting viscous fluid along with a permeable stretching sheet. Further, an analysis has been carried out to discuss the effects of Ohmic heating, viscous dissipation, and non-uniform heat source/sink near the stagnation point. Implementing similarity transformations, the governing boundary-layer equations corresponding to the momentum and energy are reduced to a set of self-similar non-linear ordinary differential equations and then solved numerically by using the shooting technique. The influence of pertinent parameters on dimensionless velocity, temperature distribution, skin friction coefficient, and local Nusselt number are displayed graphically and the physical aspects are discussed comprehensively. It is worthy to note that higher values of Hartmann number and velocity ratio parameter enhance the velocity profiles. Moreover, the heat transfer rate is decreased by Eckert number, and reverse behavior is seen for Prandtl number. Comparisons are made with previously published studies, and the results are found to be very similar.



中文翻译:

描述粘性耗散和非均匀热源/汇对粘性流体流向拉伸表面的影响

所提出的模型适用于广泛的工程和技术活动,包括聚合物制造、化学生产、核能、电子和空气动力学。由于此类应用程序正在执行当前的工作。本文研究了导电粘性流体与可渗透拉伸片的磁流体动力学流动中的热传输机制。此外,还进行了分析以讨论阻滞点附近的欧姆加热、粘性耗散和非均匀热源/散热器的影响。实施相似变换,将动量和能量对应的控制边界层方程简化为一组自相似非线性常微分方程,然后使用射击技术进行数值求解。图形显示了相关参数对无量纲速度、温度分布、表面摩擦系数和局部努塞尔数的影响,并全面讨论了物理方面。值得注意的是,较高的哈特曼数和速度比参数值会增强速度剖面。此外,传热速率因埃克特数而降低,而普朗特数则出现相反的行为。与之前发表的研究进行了比较,发现结果非常相似。值得注意的是,较高的哈特曼数和速度比参数值会增强速度剖面。此外,传热速率因埃克特数而降低,而普朗特数则出现相反的行为。与之前发表的研究进行了比较,发现结果非常相似。值得注意的是,较高的哈特曼数和速度比参数值会增强速度剖面。此外,传热速率因埃克特数而降低,而普朗特数则出现相反的行为。与之前发表的研究进行了比较,发现结果非常相似。

更新日期:2021-10-26
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