SONGKLANAKARIN JOURNAL OF SCIENCE & TECHNOLOGY

Volume 41, No. 01, Month JANUARY, Year 2019, Pages 123 - 135

Stagnation point flow of thermally radiative and dissipative mhd nanofluid over a stretching sheet filled with porous medium and suction

R. V. M. S. S. Kiran Kumar and S. Vijaya Kumar Varma

Abstract Download PDF

An analysis is carried out to examine the stagnation point flow of a nanofluid over a stretching surface through a porous medium in the presence of radiation and dissipation. The Buongiorno nanofluid model is incorporated in this study. The arising set of governing partial differential equations (PDE’ s) of the flow is transformed into coupled non-linear ordinary differentials equations (ODE’ s) with the help of appropriate similarity transformations and then solved numerically using boundary value problem default solver in MATLAB bvp4c package. To reveal the effects of the controlling parameters on the velocity, temperature, species concentration, the friction factor coefficient, the rate of heat and mass transfer coefficients are presented in graphical and tabular forms. It is found that the surface temperature in motivated with rising values of thermal radiation and thermophoresis parameters. From this we concluded that for heat enhancement processes thermal radiation and thermophoresis are very useful.

Keywords

MHD, porous medium, stagnation point flow, viscous dissipation, thermal radiation

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