Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
800798 | Mechanics Research Communications | 2015 | 10 Pages |
Abstract
This work describes the numerical simulation of natural convection heat transfer of Cu–water nanofluids in a square enclosure for Rayleigh numbers varying from 103 up to 105. Two different numerical approaches were used: the finite volume method and the finite element method. The nanofluids were assumed to be single-phase fluids with modified thermal properties obtained from experimental results and theoretical models. The results showed that the Nusselt number for nanofluids was basically the same as that obtained for the base fluid. Therefore, the enhancement observed in the heat transfer coefficient was significant due to the augmentation in the thermal conductivity.
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Authors
Douglas Hector Fontes, Daniel Dall’Onder dos Santos, Elie Luis Martínez Padilla, Enio Pedone Bandarra Filho,