活化能和扩散热对存在热泳和布朗运动的多孔垂直拉伸片上的非稳态 MHD 麦克斯韦流体流动的影响

Q2 Mathematics
Aruna Ganjikunta, Bhagya Lakshmi Kuntumalla, Ramachandra Reddy Vaddemani
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引用次数: 0

摘要

本文讨论了在存在热泳和布朗运动的情况下,活化能和扩散热对多孔介质中拉伸片上导电麦克斯韦纳米流体的非稳态 MHD 流动的影响。利用相似变换,将与动量、能量和浓度方程相对应的偏微分方程转换为非线性常微分方程系统,并使用 RungeKutta 四阶方法和射影技术对其进行数值求解,以图形方式绘制了不同流动参数下的结果,并讨论了它们对速度、温度和浓度剖面的影响。表中列出了表皮摩擦系数、努塞尔特数系数和舍伍德数系数的值。与之前报告的数据进行了比较,结果表明两者非常吻合。本研究的目的是利用活化能和扩散热参数分别提高边界层上化学物种的浓度和温度。随着辐射参数、布朗运动、热泳和磁参数的增加,流体的温度也随之升高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of Activation Energy and Diffusion Thermo an Unsteady MHD Maxwell Fluid Flow over a Porous Vertical Stretched Sheet in the Presence of Thermophoresis and Brownian Motion
This article discusses the effects of Activation energy and Diffusion thermo on an unsteady MHD flow of an electrically conducting Maxwell Nanofluid over a stretching sheet in a porous medium in the presence of thermophoresis and Brownian motion. Using the similarity transformations, the partial differential equations corresponding to the momentum, energy, and concentration equations are transformed into a system of nonlinear ordinary differential equations, which are solved numerically using a RungeKutta fourth-order method along with the shooting technique, and the results obtained for different governing flow parameters are drawn graphically, and their effects on velocity, temperature, and concentration profiles are discussed. The values of the skin friction coefficient, Nusselt number coefficient, and Sherwood number coefficient are presented in the table. A comparison with previously reported data is made, and an excellent agreement is noted. The objective of the present study is to use the Activation energy and Diffusion thermo parameters to increase the concentration of chemical species on the boundary layer and temperature, respectively. The temperature of the fluid increases as the radiation parameter, Brownian motion, thermophoresis, and magnetic parameters increase.
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来源期刊
CFD Letters
CFD Letters Chemical Engineering-Fluid Flow and Transfer Processes
CiteScore
3.40
自引率
0.00%
发文量
76
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