Cattaneo-Christov Heat Flux on an MHD 3D Free Convection Casson Fluid Flow Over a Stretching Sheet

Q2 Engineering

Engineering Transactions Pub Date : 2020-07-20 DOI:10.24423/ENGTRANS.1099.20200720

D. G. Shankar, C. Raju, M. Kumar, O. Makinde

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引用次数: 10

Abstract

In this investigation, we analyze the magnetohydrodynamic (MHD) three-dimensional (3D) flow of Casson fluid over a stretching sheet using non-Darcy porous medium with heat source/sink. We also consider the Cattaneo-Christov heat flux and Joule effect. The governing partial differential equations (PDEs) are transformed into ordinary differential equations (ODEs) using suitable transformations and solved by using the shooting technique. The effects of the non-dimensional governing parameters on velocity and temperature profiles are discussed with the graphs. Also, the skin friction coefficient and Nusselt number are discussed through tables. We also validate our results with the ones already available in the literature. It is found that the obtained results are in excellent agreement with the existing studies under some special cases. Our analysis reveals that the thermal relaxation parameter reduces the temperature field for the Newtonian and non-Newtonian fluid cases. It is also found that the temperature profile is decreased in the Newtonian fluid case when compared with the non-Newtonian fluid case.

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拉伸薄板上MHD三维自由对流Casson流体流动的Cattaneo Christov热通量

在本研究中，我们使用带热源/散热器的非达西多孔介质分析了Casson流体在拉伸薄板上的磁流体动力学（MHD）三维（3D）流动。我们还考虑了Cattaneo-Christov热通量和焦耳效应。使用适当的变换将控制偏微分方程（PDE）转换为常微分方程（ODE），并使用射击技术进行求解。用曲线图讨论了无量纲控制参数对速度和温度分布的影响。此外，通过表格讨论了表面摩擦系数和努塞尔数。我们还用文献中已有的结果验证了我们的结果。研究发现，在某些特殊情况下，所得结果与现有研究结果非常吻合。我们的分析表明，对于牛顿和非牛顿流体情况，热弛豫参数降低了温度场。还发现，与非牛顿流体情况相比，牛顿流体情况下的温度分布降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Engineering Transactions Engineering-Engineering (all)

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Engineering Transactions (formerly Rozprawy Inżynierskie) is a refereed international journal founded in 1952. The journal promotes research and practice in engineering science and provides a forum for interdisciplinary publications combining mechanics with: Material science, Mechatronics, Biomechanics and Biotechnologies, Environmental science, Photonics, Information technologies, Other engineering applications. The journal publishes original papers covering a broad area of research activities including: experimental and hybrid techniques, analytical and numerical approaches. Review articles and special issues are also welcome. Following long tradition, all articles are peer reviewed and our expert referees ensure that the papers accepted for publication comply with high scientific standards. Engineering Transactions is a quarterly journal intended to be interesting and useful for the researchers and practitioners in academic and industrial communities.