The Effects of Thermal Radiation, Hall Currents, Soret, and Dufour on MHD Flow by Mixed Convection over a Vertical Surface in Porous Media

被引：54
作者：
Shateyi, Stanford [1 ]
Motsa, Sandile Sydney [2 ]
Sibanda, Precious [3 ]
机构：
[1] Univ Venda, Dept Math & Appl Math, ZA-0950 Thohoyandou, South Africa
[2] Univ Swaziland, Dept Math, Kwaluseni, Eswatini
[3] Univ KwaZulu Natal, Dept Math & Appl Math, ZA-3209 Pietermaritzburg, South Africa
来源：
MATHEMATICAL PROBLEMS IN ENGINEERING | 2010年 / 2010卷
关键词：
BOUNDARY-LAYER-FLOW; MASS-TRANSFER; CHEMICAL-REACTION; DIFFUSION-THERMO; STRETCHING SURFACE; HEAT; SUCTION; PLATE; VISCOSITY;
D O I：
10.1155/2010/627475
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The study sought to investigate the influence of a magnetic field on heat and mass transfer by mixed convection from vertical surfaces in the presence of Hall, radiation, Soret (thermal-diffusion), and Dufour (diffusion-thermo) effects. The similarity solutions were obtained using suitable transformations. The similarity ordinary differential equations were then solved by MATLAB routine bvp4c. The numerical results for some special cases were compared with the exact solution and those obtained by Elgazery (2009) and were found to be in good agreement. A parametric study illustrating the influence of the magnetic strength, Hall current, Dufour, and Soret, Eckert number, thermal radiation, and permeability parameter on the velocity, temperature, and concentration was investigated.
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页数：20
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