Heat transfer enhancement in combined convection around a rotating horizontal cylinder using nanofluids is presented. The transport equations are solved numerically using a second-order finite volume scheme. Water-based nanofluid containing various volume fractions of different types of nanoparticles is used. The nanoparticles used are Cu, Ag, Al2O3⁠, and TiO2⁠. In the region outside the plume, the Nusselt number increases by increasing the volume fraction of nanoparticles. However, in the plume region, the effect of the volume fraction of nanoparticles on the Nusselt number is less pronounced.

Issue Section:
Technical Briefs
Keywords:
convection, external flows, finite volume methods, forced convection, nanoparticles, natural convection, nanofluids, heat transfer enhancement, mixed convection, horizontal cylinder
Topics:
Convection, Cylinders, Heat transfer, Nanofluids, Nanoparticles, Plumes (Fluid dynamics), Mixed convection
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 by American Society of Mechanical Engineers
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