Three-Dimensional Mixed Convection in a Cubical Cavity with Nanofluid

The present study reports numerical simulations of three-dimensional

laminar mixed convection heat transfer of water-based-Al2O3 nanofluid in an open

cubic cavity with a heated block. Ansys-Fluent 14.5 was used to simulate 3D flows

with heat transfer. Streamlines, isotherms, vertical velocity profile, and local Nusselt

numbers are presented for Reynolds numbers in the range (300<Re<700), volume

fractions of nanoparticles (0<ϕ<0.08) and heat source location (1cm <d <3cm). It was

found that when adding nanoparticles to the base fluid or increasing the volume

fraction of nanoparticles, the Nusselt number increases. Moreover, the heat transfer rate

increases when the Reynolds number increases.

Keywords: Cubical cavity, Heated block, Mixed convection, Nanofluid

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DOI https://doi.org/10.2174/9789815179279123030003	Print ISSN 2811-0463
Publisher Name Bentham Science Publisher	Online ISSN 2811-0455

Mechanical Engineering Technologies and Applications