Combination effect of Fe3O4 and Al2O3 nanoparticles on natural convection inside an inclined enclosure: CFD numerical approach

Abstract
In the present paper, the free convection heat transfer was simulated through an inclined circular enclosure with a square inside. The effects of \r\n hybrid nanoparticles on heat transfer and fluid flow were evaluated using Buongiorno’s mathematical model. The modeling was performed using the SIMPLE algorithm. The equation of each type of nanoparticle was solved separately in a water-based fluid. In this study, adding 2% volume fraction of each nanoparticle (\r\n to water, Rayleigh number (\r\n), inclined angle (\r\n), the ratio of Brownian to thermophoresis diffusion for each nanoparticle (\r\n) were studied on flow and heat transfer parameters. The study showed that increasing Rayleigh number, \r\n, and \r\n decreases the maximum value of \r\n concentration. Also, at high Rayleigh numbers, the inclined angle did not change the heat transfer rate.

Author
Hawzhen Fateh M. Ameen

DOI
https://doi.org/10.1016/j.asej.2023.102285

Publisher
Ain Shams Engineering Journal

ISSN

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