Legendre wavelet collocation method to simulate the effect of linear and exponential heat source/sink on AA7072-AA7075/EG-H2O flow over a stretching sheet with Cattaneo-Christov model

IF 2.5 4区工程技术 Q2 ENGINEERING, MECHANICAL

Journal of Porous Media Pub Date : 2024-06-01 DOI:10.1615/jpormedia.2024052183

TANYA GUPTA, Manoj Kumar

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引用次数: 0

Abstract

This research presents a semi-analytical method for investigating the heat transfer of a hybrid nanofluid over an inclined porous stretched sheet under the influence of a magnetic field, non-linear radiation, linear and exponential heat source/sink with convective heating, and slip condition. For assessing the thermal propagation time, the Cattaneo-Christov model is used. The Legendre wavelet collocation technique (LWCT) was used, which employs an operational matrix of integration (OMI) and is capable of producing more accurate findings than other approaches. The hybrid nanofluid is made up of nanoparticles AA7072 and AA7075, as well as ethylene glycol and water (50%-50%) as the base fluid. The heat transfer enhancement is determined to be 19.46% when the volume fraction is increased from 2% to 10%. It is also clear that the thermal relaxation parameter reduces the thermal profile, whereas linear and exponential heat sources improve it. It is also noted that the velocity profile for the horizontal sheet decreases with volume fraction but increases for the vertical sheet.

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用 Cattaneo-Christov 模型模拟线性和指数热源/热沉对拉伸片上 AA7072-AA7075/EG-H2O 流动的影响的 Legendre 小波配位法

本研究提出了一种半分析方法，用于研究在磁场、非线性辐射、线性和指数热源/散热与对流加热以及滑移条件的影响下，混合纳米流体在倾斜多孔拉伸片上的传热情况。为评估热传播时间，采用了 Cattaneo-Christov 模型。使用了 Legendre 小波定位技术 (LWCT)，该技术采用了运算积分矩阵 (OMI)，能够得出比其他方法更精确的结果。混合纳米流体由纳米粒子 AA7072 和 AA7075 以及作为基础流体的乙二醇和水（50%-50%）组成。当体积分数从 2% 增加到 10% 时，热传递增强率为 19.46%。同样明显的是，热松弛参数降低了热剖面，而线性和指数热源则改善了热剖面。还可以注意到，水平片材的速度曲线随体积分数的增加而减小，但垂直片材的速度曲线则增加。

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

Journal of Porous Media 工程技术-工程：机械

CiteScore

3.50

自引率

8.70%

发文量

审稿时长

12.5 months

期刊介绍： The Journal of Porous Media publishes original full-length research articles (and technical notes) in a wide variety of areas related to porous media studies, such as mathematical modeling, numerical and experimental techniques, industrial and environmental heat and mass transfer, conduction, convection, radiation, particle transport and capillary effects, reactive flows, deformable porous media, biomedical applications, and mechanics of the porous substrate. Emphasis will be given to manuscripts that present novel findings pertinent to these areas. The journal will also consider publication of state-of-the-art reviews. Manuscripts applying known methods to previously solved problems or providing results in the absence of scientific motivation or application will not be accepted. Submitted articles should contribute to the understanding of specific scientific problems or to solution techniques that are useful in applications. Papers that link theory with computational practice to provide insight into the processes are welcome.