Hydromagnetic thermal boundary layer of nanofluids over a convectively heated flat plate with viscous dissipation and ohmic heating
Mutuku, W. N.
Oluwole, Daniel Makinde
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This paper examines the effect of the complex interaction between the electrical conductivity of the conventional base fluid and that of the nanoparticles under the influence of magnetic field in a boundary layer flow with heat transfer over a convectively heated flat surface. Three types of water based nanofluids containing metallic or non-metallic nanoparticles such as copper (Cu), Alumina (Al2O3) and Titania (TiO2) are investigated. Using a similarity analysis of the model transport equations followed by their numerical computations, the results for the nanofluids velocity, temperature, skin friction and Nusselt number are obtained. The effects of various thermophysical parameters on the boundary layer flow characteristics are displayed graphically and discussed quantitatively. It is observed that the presence of nanoparticles greatly enhance the magnetic susceptibility of nanofluids as compared to the convectional base fluid