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Heat and Mass Transfer Analysis of MHD Nanofluid Flow with Radiative Heat Effects in the Presence of Spherical Au-Metallic Nanoparticles

机译:球形金金属纳米粒子存在下具有辐射热效应的MHD纳米流体流的传热和传质分析

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摘要

Energy generation is currently a serious concern in the progress of human civilization. In this regard, solar energy is considered as a significant source of renewable energy. The purpose of the study is to establish a thermal energy model in the presence of spherical Au-metallic nanoparticles. It is numerical work which studies unsteady magnetohydrodynamic (MHD) nanofluid flow through porous disks with heat and mass transfer aspects. Shaped factor of nanoparticles is investigated using small values of the permeable Reynolds number. In order to scrutinize variation of thermal radiation effects, a dimensionless Brinkman number is introduced. The results point out that heat transfer significantly escalates with the increase of Brinkman number. Partial differential equations that govern this study are reduced into nonlinear ordinary differential equations by means of similarity transformations. Then using a shooting technique, a numerical solution of these equations is constructed. Radiative effects on temperature and mass concentration are quite opposite. Heat transfer increases in the presence of spherical Au-metallic nanoparticles.
机译:当前,能源生产是人类文明进步中的一个严重问题。在这方面,太阳能被认为是可再生能源的重要来源。该研究的目的是在球形金金属纳米颗粒存在下建立热能模型。这是一项数值研究,研究了热和质量传递方面的非稳态磁流体动力学(MHD)纳米流体流经多孔盘的情况。使用可渗透雷诺数的较小值研究纳米颗粒的形状因子。为了检查热辐射效应的变化,引入了无量纲的布林克曼数。结果表明,随着布林克曼数的增加,热传递显着增加。借助相似变换,控制该研究的偏微分方程被简化为非线性常微分方程。然后使用射击技术,构造这些方程的数值解。辐射对温度和质量浓度的影响是完全相反的。在球形金金属纳米粒子的存在下,传热增加。

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