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Magnetohydrodynamic squeezing Casson nanofluid flow between parallel convectively heated disks
International Journal of Modern Physics B ( IF 1.7 ) Pub Date : 2022-09-12 , DOI: 10.1142/s0217979223500315
J. C. Umavathi 1 , D. G. Prakasha 2 , Yousef M. Alanazi 3 , Maha M. A. Lashin 4 , Fahad S. Al-Mubaddel 5, 6 , Raman Kumar 7 , R. J. Punith Gowda 2
Affiliation  

Squeezing flow of Casson liquid between two disks is a practical application in compression, polymer processing and injection molding. In this paper, the Casson liquid flow between two convectively heated disks is analyzed using Buongiorno model. Further, the heat and mass transport analysis is done by considering the impact of heat source/sink and activation energy. The continuity and momentum equations governing the unsteady two-dimensional flow are derived using conservative laws. The equations are reformulated using the similarity transformations and the reformulated equations are solved numerically with MATLAB routine bvp4c. The effect of embedding different physical parameters on the flow is analyzed through the graphs for both suction and blowing cases along with comprehensive solutions and equal Biot numbers. Results are validated with the existing literature. For both suction and blowing cases, squeezing number decreases the velocity near the lower disk but increases the velocity near the upper disk. Increasing magnetic field strength slightly increases velocity near the lower disk for equal Biot numbers.



中文翻译:

平行对流加热圆盘之间的磁流体挤压 Casson 纳米流体流动

Casson 液体在两个圆盘之间的挤压流动是压缩、聚合物加工和注塑成型中的实际应用。在本文中,使用 Buongiorno 模型分析了两个对流加热盘之间的 Casson 液体流动。此外,通过考虑热源/散热器和活化能的影响来完成热和质量传输分析。控制不稳定二维流的连续性和动量方程是使用保守定律推导出来的。使用相似变换重新制定方程,并使用 MATLAB 例程 bvp4c 对重新制定的方程进行数值求解。通过吸气和吹气情况的图表以及综合解决方案和相等的毕奥数,分析了嵌入不同物理参数对流动的影响。结果通过现有文献进行了验证。对于吸入和吹气情况,挤压数降低了下盘附近的速度,但增加了上盘附近的速度。对于相等的毕奥数,增加磁场强度会略微增加下盘附近的速度。

更新日期:2022-09-12
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