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Analysis of boundary layer MHD Darcy-Forchheimer radiative nanofluid flow with soret and dufour effects by means of marangoni convection
Case Studies in Thermal Engineering ( IF 6.4 ) Pub Date : 2020-12-03 , DOI: 10.1016/j.csite.2020.100792
Muhammad Jawad , Anwar Saeed , Poom Kumam , Zahir Shah , Aurangzeb Khan

In the current article, the analysis of magnetohydrodynamic laminar flow past a vertical permeable surface is presented. The flow is considered in the existence of Dufour as well as Soret effects. There is a diffusion-thermo process when heat transmission is encouraged by the concentration gradient and thermo diffusion process when the transfer of mass is encouraged by the thermal gradient. The set of partial differential equations (PDEs) for a modeled problem is changed into a set of ordinary differential equations by applying selected non-dimensional similarity transformations. The semi-analytical method HAM is used to determine a solution for the modeled problem. The features of flow characteristics such as velocity, temperature, and concentration profiles in response to the variations of the emerging parameters are simulated and examined in detail. This research article aims to analyze the impacts of surface tension thermo-solutal quotient, Soret parameter, Dufour parameter, Schmidt number, and Prandtl number on the fluid momentum, transfer of heat, and mass. It is noticed in this article that, the gradient of temperature and concentration at the surface is escalated with enhancement in thermo-solutal surface tension. It is further noted that augmentation in the Prandtl number augmented the transfer in heat.



中文翻译:

借助Marangoni对流分析具有Soret和Dufour效应的边界层MHD Darcy-Forchheimer辐射纳米流体流动

在当前文章中,介绍了通过垂直可渗透表面的磁流体动力学层流的分析。杜福尔效应和索雷特效应的存在都考虑了流动。当通过浓度梯度促进传热时,存在扩散-热过程;当通过温度梯度促进质量传递时,存在热扩散过程。通过应用选定的无量纲相似性转换,可将模型问题的一组偏微分方程(PDE)更改为一组常微分方程。半分析方法HAM用于确定建模问题的解决方案。流动特性的特征,例如速度,温度,模拟和检查了响应新兴参数变化的浓度曲线。本文旨在分析表面张力热溶质商,Soret参数,Dufour参数,Schmidt数和Prandtl数对流体动量,传热和质量的影响。在本文中注意到,随着热固溶表面张力的增强,表面温度和浓度的梯度逐渐增大。还要注意的是,Prandtl数的增加增加了热量的传递。表面温度和浓度的梯度随着热固溶表面张力的增加而增加。还要注意的是,Prandtl数的增加增加了热量的传递。随着热固溶表面张力的增加,表面温度和浓度的梯度逐渐升高。还要注意的是,Prandtl数的增加增加了热量的传递。

更新日期:2020-12-22
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