磁化辐射杂化铁流体在收缩/拉伸表面上的急剧磁力滑动效应

IF 1.8 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Open Physics Pub Date : 2024-08-16 DOI:10.1515/phys-2024-0052
Adnan Asghar, Sumera Dero, Liaquat Ali Lund, Zahir Shah, Mansoor H. Alshehri, Narcisa Vrinceanu
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引用次数: 0

摘要

这项研究的意义在于它研究了复杂的流体动力学和磁流体力学现象,这些现象有可能应用于物理学、工程学和材料科学等多个领域。它们之所以具有非凡的物理意义,是因为它们能够结合多种物质的独特特性,从而提供所需的功能和性能特征。然而,在本研究中,研究人员对在拉伸/收缩表面上具有尖锐磁力的磁化辐射杂化铁流体流动的滑移效应进行了数值研究。当前研究的主要目的是考察钴铁氧体固体体积百分比、急剧定向磁场和速度滑移因子对吸力作用下表皮摩擦和传热行为的影响。此外,研究还分析了与磁参数、钴铁氧体固体体积百分比、普朗特数和热辐射参数有关的速度和温度曲线的行为。利用相关相似变量将调节系统的方程由偏微分方程转换为常微分方程,然后用 bvp4c MATLAB 软件求解。在实现对偶解的特定参数范围内,满足了边界要求。此外,在收缩区也得到了对偶解。在临界点,两个对偶解相交;但在这些点之后,就无法再求解了。热传导率降低了速度滑移因子,而增加了热滑移因子。此外,热边界层的厚度增加了热辐射,同时降低了普朗特数。此外,钴铁氧体值越高,温度曲线越好。总之,根据稳定性分析,第一种方案是稳定的,第二种方案是不稳定的。
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Slip effects on magnetized radiatively hybridized ferrofluid flow with acute magnetic force over shrinking/stretching surface
The significance of the study comes in the fact that it investigates complex fluid dynamics and magnetohydrodynamics phenomena, which have the potential to be applied in a variety of domains, such as physics, engineering, and materials science. Their exceptional physical significance stems from their ability to combine the unique properties of multiple substances to provide the desired functions and performance characteristics. However, in this study, the numerical studies of slip effects on magnetized radiatively hybridized ferrofluid flow with acute magnetic force over stretching/shrinking surface were investigated. The main objective of current research is to examine the influence of solid volume percentage of cobalt ferrite, the sharply oriented magnetic field, and velocity slip factors on the behaviour of skin friction and heat transfer subjected to suction effect. Moreover, the study included an analysis of the behaviour of velocity and temperature profiles in relation to the consideration of the magnetic parameter, the solid volume percentage of cobalt ferrite, the Prandtl number, and the thermal radiation parameter. The equations that regulate the system were converted partial differential equations into ordinary differential equations by making use of the relevant similarity variables, and then, it solved with bvp4c MATLAB software. The boundary requirements are satisfied in particular parameter ranges where dual solutions are achieved. Besides, dual solutions were obtained in shrinking zone. At critical points, the two dual solutions intersect; however, after these points, no further solutions are accessible. The heat transfer rate decreased the velocity slip factor, while it increased the thermal slip factor. In addition, the thickness of the thermal boundary layer increased thermal radiation, while simultaneously reducing the Prandtl number. Besides, the temperature profile improves when the value of cobalt ferrite is higher. In summary, according to stability analysis, he first solution is stable and the second solution is unstable.
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来源期刊
Open Physics
Open Physics PHYSICS, MULTIDISCIPLINARY-
CiteScore
3.20
自引率
5.30%
发文量
82
审稿时长
18 weeks
期刊介绍: Open Physics is a peer-reviewed, open access, electronic journal devoted to the publication of fundamental research results in all fields of physics. The journal provides the readers with free, instant, and permanent access to all content worldwide; and the authors with extensive promotion of published articles, long-time preservation, language-correction services, no space constraints and immediate publication. Our standard policy requires each paper to be reviewed by at least two Referees and the peer-review process is single-blind.
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