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

Stanford Shateyi | Zendy; S. S. Motsa | Zendy; Precious Sibanda | Zendy

Open Access

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

Author(s) -

Stanford Shateyi,

S. S. Motsa,

Precious Sibanda

Publication year - 2010

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2010/627475

Subject(s) - magnetohydrodynamics , thermal radiation , porous medium , mechanics , flow (mathematics) , combined forced and natural convection , thermal , radiation , surface (topology) , natural convection , convection , materials science , physics , porosity , thermodynamics , magnetic field , optics , geometry , mathematics , composite material , quantum mechanics

The study sought to investigate the influence of a magnetic field on heat and mass transfer by mixedconvection 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. Thesimilarity ordinary differential equations were then solved by MATLAB routine bvp4c. The numericalresults 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 themagnetic strength, Hall current, Dufour, and Soret, Eckert number, thermal radiation, and permeabilityparameter on the velocity, temperature, and concentration was investigated

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