%0 Journal Article
%T Heat transfer in MHD square duct flow of nanofluid with discrete heat sources
%J Challenges in Nano and Micro Scale Science and Technology
%I University of Sistan and Baluchestan,
Iranian Society Of Mechanical Engineers
%Z 2322-3634
%A Sunil, Arjun Kozhikkatil
%A Kumar, Rakesh
%D 2018
%\ 07/01/2018
%V 6
%N 2
%P 88-95
%! Heat transfer in MHD square duct flow of nanofluid with discrete heat sources
%K discrete heat source
%K heat transfer
%K Magneto Hydro Dynamics
%K Nusselt number
%K square duct
%R 10.22111/tpnms.2018.20662.1120
%X The effect of thermal and solutal buoyancy induced by a discrete source of heat and mass transfer in a square duct under the influence of magnetic field, especially at the turbulent regime for the first time is reported. Al2O3/water nanofluid is used with constant heat flux from three discrete heat sources. In the present study, the effects of Reynolds number (100 to 3000), particle volume fraction (0 to 2%) and magnetic field (Ha = 10 to 90) on the Nusselt number, pressure drop and wall temperature (at the axial and height directions) are represented graphically and discussed quantitatively. Two percent Al2O3-water nanofluid under Ha = 10 can produce 81% increase in Nusselt number with only 60% increase in pressure drop when compared to base fluid at Re = 100. Four percent enhancement in nanofluids cooling effect in the vicinity of a centre of the final heat source can be utilized in hot spots cooling.
%U https://chal.usb.ac.ir/article_4035_298f85e0ed49d5753946afaa1f6ea733.pdf