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Entropy generation on convectively heated surface of casson fluid with viscous dissipation
Physica Scripta ( IF 2.9 ) Pub Date : 2020-10-06 , DOI: 10.1088/1402-4896/abbaf2
Gangadhar Kotha 1 , Venkata Subba Rao M 2 , Manasa Seshakumari P 1 , Ali J Chamkha 3, 4
Affiliation  

The principle aim of this study is to analyse the entropy minimization in boundary layer flow of Casson fluid. Geometry of this examination is stretching sheet. Transverse magnetic field, thermal radiation and viscous dissipation effects are considered in their respective equations. Nonlinear differential equations are derived from the present flow by utilizing the appropriate similarity transformations. Thereafter numerical solution is obtained with the help of Keller Box Method. Effects of various physical parameters, like, magnetic parameter, velocity index parameter, Eckert number, Prandtl number, entropy generation number and Bejan number which are encountered in the present study and all these are analysed through graphs and tables with some notable applications. Moreover, the obtained numerical solutions are validated by comparing with the existing results. Mainly an improvement in entropy generation number is observed for the increase in velocity index parameter and reve...

中文翻译:

粘性耗散的卡森流体对流加热表面上的熵产生

这项研究的主要目的是分析卡森流体边界层流动中的熵最小化。这次检查的几何形状是拉伸片。在各自的方程式中考虑了横向磁场,热辐射和粘性耗散效应。非线性微分方程是通过利用适当的相似度变换从当前流程中得出的。此后,借助凯勒盒法获得了数值解。本研究中遇到的各种物理参数,如磁参数,速度指数参数,埃克特数,普朗特数,熵产生数和贝扬数的影响,并通过图表和表格进行了分析,并具有一些值得注意的应用。此外,通过与现有结果进行比较来验证所获得的数值解。主要观察到随着速度指数参数的增加和熵的增加,熵产生数得到改善。
更新日期:2020-10-07
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