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.
Sunil, A., & Kumar, R. (2018). Heat transfer in MHD square duct flow of nanofluid with discrete heat sources. Challenges in Nano and Micro Scale Science and Technology, 6(2), 88-95. doi: 10.22111/tpnms.2018.20662.1120
MLA
Arjun Kozhikkatil Sunil; Rakesh Kumar. "Heat transfer in MHD square duct flow of nanofluid with discrete heat sources". Challenges in Nano and Micro Scale Science and Technology, 6, 2, 2018, 88-95. doi: 10.22111/tpnms.2018.20662.1120
HARVARD
Sunil, A., Kumar, R. (2018). 'Heat transfer in MHD square duct flow of nanofluid with discrete heat sources', Challenges in Nano and Micro Scale Science and Technology, 6(2), pp. 88-95. doi: 10.22111/tpnms.2018.20662.1120
VANCOUVER
Sunil, A., Kumar, R. Heat transfer in MHD square duct flow of nanofluid with discrete heat sources. Challenges in Nano and Micro Scale Science and Technology, 2018; 6(2): 88-95. doi: 10.22111/tpnms.2018.20662.1120
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