Unsteady squeezing flow and heat transport of SiO2/kerosene oil nanofluid around radially stretchable parallel rotating disks with upper disk oscillating

IF 5.4 2区工程技术 Q1 ENGINEERING, AEROSPACE

Propulsion and Power Research Pub Date : 2024-03-01 DOI:10.1016/j.jppr.2024.02.005

Folarin Oluwaseun , Sicelo Goqo , Hiranmoy Mondal

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引用次数: 0

Abstract

In this study, we have analyzed fluid mobility and thermal transport of the SiO₂/kerosene nanofluid within two rotating stretchable disks. The top disk is simulated to be oscillating with a periodic velocity and squeezing continuously the nanofluid within a porous medium and making the fluid to flow perpendicularly to the situated magnetic field. Thermal radiation effects are considered in the heat transfer model. The non-linear (NL) PDEs that describe the nanofluid mobility structure and thermal transport are transformed into system of NL-ODEs by introducing adequately suitable non-dimensional variables after which the NL-ODEs were numerically solved via spectral quasi-linearization method (SQLM) on overlapping grids. The consequences of several pertinent parameters of the model on pressure, temperature, velocity, skin drag coefficient and thermal transport rate are examined and elucidated in detail with the aid of figures and tables. It was found that the flow structure with prescribing conditions develops negative pressure situation which has vast applications in modern day medical engineering, especially in the construction of air pressure stabilizers used in medical isolation and wound therapy physiology.

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SiO2/煤油纳米流体在上盘摆动的径向可拉伸平行旋转盘周围的非稳态挤压流动和热传输

在这项研究中，我们分析了两个可旋转拉伸圆盘内 SiO/kerosene 纳米流体的流动性和热传输。模拟顶部圆盘以周期性速度摆动，不断挤压多孔介质中的纳米流体，使流体垂直于所在磁场流动。传热模型考虑了热辐射效应。通过引入适当的非尺寸变量，将描述纳米流体流动结构和热传输的非线性（NL）PDEs 转化为 NL-ODEs 系统，然后通过重叠网格上的谱准线性化方法（SQLM）对 NL-ODEs 进行数值求解。借助图表对模型中几个相关参数对压力、温度、速度、表皮阻力系数和热传输速率的影响进行了详细研究和阐释。研究发现，在规定条件下的流动结构会产生负压情况，这在现代医学工程中有着广泛的应用，尤其是在建造用于医学隔离和伤口生理治疗的气压稳定器方面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Propulsion and Power Research Multiple-

CiteScore

7.50

自引率

5.70%

发文量

期刊介绍： Propulsion and Power Research is a peer reviewed scientific journal in English established in 2012. The Journals publishes high quality original research articles and general reviews in fundamental research aspects of aeronautics/astronautics propulsion and power engineering, including, but not limited to, system, fluid mechanics, heat transfer, combustion, vibration and acoustics, solid mechanics and dynamics, control and so on. The journal serves as a platform for academic exchange by experts, scholars and researchers in these fields.