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通过熵优化对旋转圆锥上具有化学反应的辐射卡森流体流动的霍尔效应

Hall Effect on Radiative Casson Fluid Flow with Chemical Reaction on a Rotating Cone through Entropy Optimization.

作者信息

Deebani Wejdan, Tassaddiq Asifa, Shah Zahir, Dawar Abdullah, Ali Farhad

机构信息

Department of Mathematics, College of Science and Arts, Rabigh King Abdul-Aziz University, Rabigh 21911, Saudi Arabia.

College of Computer and Information Sciences Majmaah University, Al Majmaah 11952, Saudi Arabia.

出版信息

Entropy (Basel). 2020 Apr 22;22(4):480. doi: 10.3390/e22040480.

DOI:10.3390/e22040480
PMID:33286253
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7516964/
Abstract

Magnetohydrodynamic (MHD) flow with Hall current has numerous applications in industrial areas such as Hall current accelerators, MHD power generators, planetary dynamics, Hall current sensors, etc. In this paper, the analysis of an unsteady MHD Casson fluid with chemical reaction over a rotating cone is presented. The impacts of Hall current, joule heating, thermal radiation, and viscous dissipation are analyzed. Entropy optimization is also considered in the present analysis. The system of coupled equations is tackled with homotopy analysis method (HAM). The convergence of HAM is also shown through figures. Deviations in the flow due to dimensionless parameters are shown graphically. Similarly, the variation in skin friction, Nusselt number, and Sherwood number are deliberated through Tables. A justification of the current consequences is presented.

摘要

具有霍尔电流的磁流体动力学（MHD）流动在工业领域有众多应用，如霍尔电流加速器、MHD发电机、行星动力学、霍尔电流传感器等。本文对旋转锥面上具有化学反应的非稳态MHD卡森流体进行了分析。分析了霍尔电流、焦耳热、热辐射和粘性耗散的影响。本分析中还考虑了熵优化。用同伦分析方法（HAM）求解耦合方程组。通过图表展示了HAM的收敛性。以图形方式展示了由于无量纲参数导致的流动偏差。同样，通过表格讨论了表面摩擦力、努塞尔数和舍伍德数的变化。给出了当前结果的合理性说明。

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Radiative MHD Casson Nanofluid Flow with Activation energy and chemical reaction over past nonlinearly stretching surface through Entropy generation.通过熵产生研究具有活化能和化学反应的辐射磁流体动力学卡森纳米流体在过去非线性拉伸表面上的流动
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Comput Methods Programs Biomed. 2020 Mar;185:105168. doi: 10.1016/j.cmpb.2019.105168. Epub 2019 Nov 2.