Dufour and Soret effects on Darcy-Forchheimer flow of second-grade fluid with the variable magnetic field and thermal conductivity

被引:49
|
作者
Khan, Ambreen A. [1 ]
Naeem, S. [1 ]
Ellahi, R. [1 ,2 ]
Sait, Sadiq M. [3 ]
Vafai, K. [4 ]
机构
[1] Int Islamic Univ, Dept Math & Stat, Islamabad, Pakistan
[2] King Fahd Univ Petr & Minerals, Ctr Modeling & Comp Simulat, Res Inst, Dhahran, Saudi Arabia
[3] King Fahd Univ Petr & Minerals, Ctr Commun & IT Res, Dhahran, Saudi Arabia
[4] Univ Calif Riverside, Dept Mech Engn, Riverside, CA 92521 USA
关键词
Magnetic field; Second-grade fluid; Dufour and Soret effects; Stretching sheet; Darcy-Forchheimer; Software package BVPh 2; 0; Blend of analytical and numerical results; BOUNDARY-LAYER-FLOW; COUPLE STRESS FLUID; HEAT-TRANSFER; ENTROPY GENERATION; VISCOELASTIC FLUID; POISEUILLE FLOW; CHEMICAL-REACTION; FREE-CONVECTION; MASS-TRANSFER; POROUS-MEDIUM;
D O I
10.1108/HFF-11-2019-0837
中图分类号
O414.1 [热力学];
学科分类号
摘要
Purpose This study aims to investigate the effect of two-dimensional Darcy-Forchheimer flow over second-grade fluid with linear stretching. Heat transfer through convective boundary conditions is taken into account. Design/methodology/approach Nonlinear coupled governing equations are tackled with a homotopy algorithm, while for numerical computation the computer software package BVPh 2.0 is used. The convergence analysis is also presented for the validation of analytical and numerical results. Findings Valuation for the impact of key parameters such as variable thermal conductivity, Dufour and Soret effects and variable magnetic field in an electrically conducted fluid on the velocity, concentration and temperature profiles are graphically illustrated. It is observed from the results that temperature distribution rises by Dufour number whereas concentration distribution rises by Soret number. The Forchheimer number and porosity parameter raise the skin friction coefficient. The permeable medium has a vital impact and can help in reining the rate of heat transfer. Originality/value To the best of the authors' knowledge, this study is reported for the first time.
引用
收藏
页码:4331 / 4347
页数:17
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