对磁化 SWCNT/MWCNT 纳米流体的 Soret-Dufour 机制和热辐射效应的对流传输与溶质分层分析

IF 6 2区 工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY Ain Shams Engineering Journal Pub Date : 2024-08-17 DOI:10.1016/j.asej.2024.102853
Bidemi Olumide Falodun , Ogiboina Ramakrishna , Ahmed Senior Ismail , Tijani Musa Oladipupo , Ogunsanya Tolulope Idiat , Adenekan Ibrahim Oyeyemi , Gurrampati Venkata Ramana Reddy
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引用次数: 0

摘要

本研究通过对流传输和溶质分层分析,阐明了磁化 SWCNT/MWCNT 纳米流体的 Soret-Dufour 机理。溶质分层在本研究的传热和传质过程中起着重要作用。溶质分层涉及纳米颗粒在边界层流动机制中的分布。流体流被视为在圆盘中垂直向下/向上旋转,其物理解释为偏微分方程(PDEs)。在应用频谱弛豫法(SRM)数值方案之前,首先将偏微分方程组转换为全微分方程。利用 SRM 的迭代技术对磁化的 SWCNT/MWCNT 进行了严格的数值模拟。相关流动参数的关键作用以图表说明,相关工程量的计算值则以表格形式列出。方位角剖面因磁性参数的增加而增大。由于水的热导率较低,普朗特数的增加会降低速度和温度曲线。热辐射的增加会增强温度曲线,从而改善流体的热状况。本分析与文献分析进行了比较,发现两者非常一致。
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Soret-Dufour mechanisms and thermal radiation effects on magnetized SWCNT/MWCNT nanofluid in a convective transport and solutal stratification analysis

This research elucidates the mechanisms of Soret-Dufour on magnetized SWCNT/MWCNT nanofluid in a convective transport and solutal stratification analysis. The solutal stratification plays a significant role in this study's heat and mass transfer process. The solutal stratification involves the distribution of nanoparticles within the boundary layer flow regime. The fluid flow was considered to rotate vertically downward/upward in a disk and the physical interpretation is presented as partial differential equations (PDEs). The set of PDEs was first changed into total differential equations before applying the numerical scheme of the spectral relaxation method (SRM). The magnetized SWCNT/MWCNT's numerical simulations were rigorously examined using the iterative techniques of SRM. The crucial role of pertinent flow parameters is graphically illustrated while the calculated values of engineering quantities of interest are tabulated. The azimuthal profile increases due to an increase in the magnetic parameter. An increase in the Prandtl number was found to depreciate the velocity alongside the temperature profile because of the low thermal conductivity possessed by water. A rise in thermal radiation increases the fluid thermal condition by enhancing the temperature profile. The present analysis was compared with the analysis in the literature and was found to be in good agreement.

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来源期刊
Ain Shams Engineering Journal
Ain Shams Engineering Journal Engineering-General Engineering
CiteScore
10.80
自引率
13.30%
发文量
441
审稿时长
49 weeks
期刊介绍: in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance. Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.
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