Thermal radiation effects on MHD flow of a micropolar fluid over a stretching surface with variable thermal conductivity

Mostafa A.A. Mahmoud

Physica A: Statistical Mechanics and its Applications, 2007, vol. 375, issue 2, 401-410

Abstract: In this paper, the effects of variable thermal conductivity and radiation on the flow and heat transfer of an electrically conducting micropolar fluid over a continuously stretching surface with varying temperature in the presence of a magnetic field are considered. The surface temperature is assumed to vary as a power-law temperature. The governing conservation equations of mass, momentum, angular momentum and energy are converted into a system of non-linear ordinary differential equations by means of similarity transformation. The resulting system of coupled non-linear ordinary differential equations is solved numerically. The numerical results show that the thermal boundary thickness increases as the thermal conductivity parameter S increases, while it decreases as the radiation parameter F increases. Also, it was found that the Nusselt number increases as F increases and decreases as S increases.

Keywords: MHD; Micropolar fluids; Radiation; Variable thermal conductivity (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:375:y:2007:i:2:p:401-410

DOI: 10.1016/j.physa.2006.09.010

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