Cattaneo-Christov热通量对Jeffrey流体中sakadiis MHD边界层输运现象的影响

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Zarith Othman, Zailan Siri, Muhamad Aziz, Kohilavani Naganthran
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引用次数: 0

摘要

在Cattaneo-Christov热通量模型下,对具有Sakiadis特征的磁流体杰弗里流体在水平板上的边界流动进行了数值模拟。利用局部相似解的相似变换将控制方程组简化为非线性常微分方程。用?dsolve?求解方程。命令,该命令带有用于Maple中的边界值问题的数字选项。对不同的弛豫时间、德博拉数、磁场参数、热流弛豫时间、普朗特数和施密特参数进行了模拟。将先前发表的论文的数值结果与本文对水平板上无量纲速度梯度的计算结果进行了比较,结果表明两者非常吻合。结果表明,狄波拉数的增加导致无量纲速度梯度的增强,而弛豫到延迟时间参数和磁场参数的增加则表明相反的趋势。传热速率随普朗特数的增加和流体状态下热松弛时间的增加而显著降低。Schmidt参数越大,流体浓度越低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cattaneo-Christov heat flux effect on Sakiadis MHD boundary layer transport phenomena in the Jeffrey fluid
This study aims to perform a numerical simulation of the boundary flow with the characteristic Sakiadis flow of the magnetohydrodynamic (MHD) Jeffrey fluid under the Cattaneo-Christov heat flux model over the horizontal plate. The similarity transformation for the local similarity solution was used to reduce the set of governing equations to non-linear ordinary differential equations. The equations were solved by using ?dsolve? command with the numeric option for the boundary value problem in Maple. Simulations have been carried out for different values of the relaxation to retardation times, the Deborah number, the magnetic field parameter, the heat flux relaxation time, the Prandtl number, and the Schmidt parameter. A comparative study of the numerical results from the previously published paper with the present result for the dimensionless velocity gradient over the horizontal plate shows excellent agreement. It has been found that the growth of the Deborah number leads to the dimensionless velocity gradient enhancement, while the increment of the relaxation to retardation times parameter and the magnetic field parameter indicates the opposite trend. The heat transfer rate noticeably decreased with an increment in the Prandtl number and thermal relaxation time at the fluid regime. Also, fluid concentration decreases with larger values of the Schmidt parameter.
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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