Study on Shape Effect of MHD Radiative Ag-Water and CuO-Water Nanofluid Flow in a Semi-Porous Channel

Q4 Physics and Astronomy

Defect and Diffusion Forum Pub Date : 2024-01-09 DOI:10.4028/p-1sbxuh

Dhanonjoy Chandra Paul, Md. Abdul Hye, Md. Maidul Islam, Md. Zakir Hosen, M. Alam

引用次数: 0

Abstract

This paper studies the two-dimensional unsteady incompressible Ag-water and CuO-water nanofluid flow in a semi-porous expanding-contracting channel in the presence of thermal radiation effect. The continuity equation, Navier-Stokes equation, and energy equation governing the model are transformed into a set of non-dimensional ordinary differential equations using appropriate transformations. These dimensionless governing equations are solved using power series with the aid of the Hermite-Padé approximation method. The influences of physical parameters such as Reynolds number, expansion ratio, solid volume fraction, Prandtl number, Magnetic parameter, and shape factor are depicted in velocity and temperature profiles. Moreover, the average Nusselt number and skin friction coefficient are also investigated with the effect of Reynolds number, solid volume fraction, and expansion ratio. It is observed that the heat transfer rate decreases significantly as the shape factor increases.

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半多孔通道中 MHD 辐射 Ag-Water 和 CuO-Water 纳米流体流动的形状效应研究

本文研究了存在热辐射效应的半多孔膨胀收缩通道中的二维非稳态不可压缩银-水和铜-水纳米流体流动。通过适当的转换，将支配模型的连续性方程、纳维-斯托克斯方程和能量方程转换成一组无量纲常微分方程。借助 Hermite-Padé 近似法，利用幂级数求解这些无量纲控制方程。雷诺数、膨胀比、固体体积分数、普朗特数、磁参数和形状系数等物理参数对速度和温度曲线的影响得到了描述。此外，还研究了雷诺数、固体体积分数和膨胀比对平均努塞尔特数和表皮摩擦系数的影响。结果表明，随着形状系数的增大，传热速率明显降低。

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

Defect and Diffusion Forum Physics and Astronomy-Radiation

CiteScore

1.20

自引率

0.00%

发文量

127

期刊介绍： Defect and Diffusion Forum (formerly Part A of ''''Diffusion and Defect Data'''') is designed for publication of up-to-date scientific research and applied aspects in the area of formation and dissemination of defects in solid materials, including the phenomena of diffusion. In addition to the traditional topic of mass diffusion, the journal is open to papers from the area of heat transfer in solids, liquids and gases, materials and substances. All papers are peer-reviewed and edited. Members of Editorial Boards and Associate Editors are invited to submit papers for publication in “Defect and Diffusion Forum” . Authors retain the right to publish an extended and significantly updated version in another periodical.