Effects of heat generation and thermal radiation on steady MHD flow near a stagnation point on a linear stretching sheet in porous medium and presence of variable thermal conductivity and mass transfer

Mohammed Ibrahim, S.; Suneetha, K.

doi:10.22061/jcarme.2015.271

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	Effects of heat generation and thermal radiation on steady MHD flow near a stagnation point on a linear stretching sheet in porous medium and presence of variable thermal conductivity and mass transfer
Journal of Computational & Applied Research in Mechanical Engineering (JCARME)
مقاله 3، دوره 4، شماره 2، شهریور 2015، صفحه 133-144 اصل مقاله (772.05 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22061/jcarme.2015.271
نویسندگان
S. Mohammed Ibrahim^* ؛ K. Suneetha
Department of Mathematics, Priyadarshini College of Engineering and Technology, Nellore, Andra Pradesh, India - 524004
تاریخ دریافت: 27 دی 1392، تاریخ بازنگری: 19 اردیبهشت 1393، تاریخ پذیرش: 22 خرداد 1393
چکیده
The present paper was aimed to study the effects of variable thermal conductivity and heat generation on the flow of a viscous incompressible electrically conducting fluid in the presence of a uniform transverse magnetic field, thermal radiation, porous medium, mass transfer, and variable free stream near a stagnation point on a non-conducting stretching sheet. Equations of continuity, momentum, energy, and mass were transformed into ordinary differential equations and solved numerically using shooting method. Velocity, temperature, and concentration distributions were numerically discussed and presented in the graphs. Skin-friction coefficient, the Nusselt number, and Sherwood number on the sheet were derived and discussed numerically. Their numerical values for various values of physical parameters were presented in the tables. It was found that temperature increased with increasing radiation parameter, R, and concentration decreased with increasing the Schmidt number, Sc. The numerical predications were compared with the existing information in the literature and a good agreement was obtained.
کلیدواژه‌ها
Boundary layer؛ Steady؛ MHD؛ Stagnation point؛ Radiation؛ Mass transfer؛ Porous medium؛ Heat generation

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Effects of heat generation and thermal radiation on steady MHD flow near a stagnation point on a linear stretching sheet in porous medium and presence of variable thermal conductivity and mass transfer