磁流体力学纳米流体流过热收缩滑面Buongiorno模型的对偶解及其稳定性分析

IF 2.7 Q3 NANOSCIENCE & NANOTECHNOLOGY
Khodani Sherrif Tshivhi, O. Makinde
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引用次数: 2

摘要

本研究探讨了磁场、焦耳加热、粘性耗散、热电泳和布朗运动对对流加热收缩和光滑表面纳米流体滞止点流动的综合影响。采用改进的纳米流体流动Buongiorno模型,并结合Runge-Kutta-Fehlberg积分格式采用射击技术进行数值求解。发现在一定的收缩面参数范围内存在对偶解。对小扰动对偶解进行了时间稳定性分析,发现上解分支是该问题的稳定且物理上真实的解。对磁场、表面滑度、Eckert数、Biot数、布朗运动和热电泳参数对纳米流体温度、速度、纳米颗粒浓度、Nusselt数、表面摩擦和Sherwood数的影响进行了定量讨论,并以图形和表格的形式进行了描述。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dual Solutions and Stability Analysis for Buongiorno Model of Magnetohydrodynamics Nanofluid Flow Past a Heated Shrinking Slippery Surface
This study investigates the combined effects of magnetic field, Joule heating, viscous dissipation, thermophoresis, and Brownian motion towards a convectively heated shrinking and slippery surface on a stagnation point flow of nanofluid is theoretically examined. The modified Buongiorno model for nanofluid flow is employed and numerically solved using a shooting technique together with the Runge-Kutta-Fehlberg integration scheme. It is found that dual solutions appear in certain range of shrinking surface parameter. The temporal stability analysis of the dual solutions to small disturbances was performed and the upper solution branch is found to be a stable and physically realistic solution to the problem. Appropriate results showing the influence of magnetic field, Surface slipperiness, Eckert number, Biot number, Brownian motion, and thermophoresis parameters on the nanofluid temperature, velocity, nanoparticles concentration, Nusselt number, skin friction, and Sherwood number are quantitatively discussed, and depicted graphically and in tables.
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来源期刊
Journal of Nanofluids
Journal of Nanofluids NANOSCIENCE & NANOTECHNOLOGY-
自引率
14.60%
发文量
89
期刊介绍: Journal of Nanofluids (JON) is an international multidisciplinary peer-reviewed journal covering a wide range of research topics in the field of nanofluids and fluid science. It is an ideal and unique reference source for scientists and engineers working in this important and emerging research field of science, engineering and technology. The journal publishes full research papers, review articles with author''s photo and short biography, and communications of important new findings encompassing the fundamental and applied research in all aspects of science and engineering of nanofluids and fluid science related developing technologies.
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