求解对流加热条件的谱拟线性化方法

Q2 Engineering
W. Ibrahim
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引用次数: 4

摘要

本文旨在实现光谱准线性化方法,以研究二阶滑移流和对流加热对可扩展表面上纳米流体边界层流动和传热的影响。流动问题的数学模型是通过考虑引导参数的权重来获得的。相似性转换用于将领先的偏微分方程转换为非线性高阶常微分方程。对于主要参数的不同值,使用谱拟线性化方法对这些方程进行了数值计算。对于流动变量,以及皮肤摩擦系数、局部努塞尔数和舍伍德数,获得了有趣的数值结果。结果表明,表面摩擦系数$C_f$随着滑移参数$\gamma$值的增加而下降,随着$\delta$值的增大而提高。局部努塞尔数$\theta'(0)$和舍伍德数$\phi'(0。将光谱准线性化方法(SQLM)与bvp4c方法进行了比较,并观察到它们的输出非常一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spectral Quasilinearization Method for Solution of Convective Heating Condition
This article aims to implement the spectral quasilinearization method to examine the impact of a second-order slip flow and convective heating on boundary layer flow and heat transfer of a nanofluid over an extensible surface. The mathematical modeling of the flow problem is obtained by taking into consideration the weight of leading parameters. Similarity conversions are employed in converting the leading partial differential equations to non-linear high-order ordinary differential equations. These equations were numerically computed using a spectral quasilinearization method for different values of the main parameters. The interesting numerical outcomes are attained for the flow variables, as well as the skin friction coefficient, local Nusselt number and Sherwood number. The results designate that the skin friction coefficient $C_f$ falls as the values of slip parameter $\gamma$ rise, it improves as the values of $\delta$ boost. Both the local Nusselt number, $\theta'(0)$ , and Sherwood number, $\phi'(0)$, drop as both Brownian motion and thermophoresis parameters increase. A comparison of the spectral quasilinerization method (SQLM) with the bvp4c method is conducted and an excellent agreement in their output is observed.
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来源期刊
Engineering Transactions
Engineering Transactions Engineering-Engineering (all)
CiteScore
1.40
自引率
0.00%
发文量
0
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.
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