Numerical simulation of heat transfer enhancement for natural convection in a cubical enclosure filled with Al2O3/water and Ag/water nanofluids |
| |
| Authors: | L. Snoussi R. Chouikh N. Ouerfelli A. Guizani |
| |
| Affiliation: | 1. Thermal Process Laboratory Research and Technologies Centre of Energy, Borj-Cedria Science and Technologies Park, Hammam-lif, Tunisialotfi.snoussi@yahoo.fr;3. Faculty of Science, Physics Department, King Khalid University, Abha, Saudi Arabia;4. Laboratoire de Biophysique et Technologies Médicales, LR13ES07, Institut Supérieur des Technologies Médicales de Tunis, Université de Tunis El Manar, Tunis, Tunisia;5. Thermal Process Laboratory Research and Technologies Centre of Energy, Borj-Cedria Science and Technologies Park, Hammam-lif, Tunisia |
| |
| Abstract: | In the present study, the natural convective heat transfer in a cube filled with Al2O3/H2O and Ag/H2O nanofluids is investigated numerically. Commercial CFD code FLUENT has been used to simulate water-based nanofluid considering it as a single-phase fluid. The influence of different parameters, such as the Rayleigh number and the nanoparticle volume fraction, is studied. The velocity vectors and the isotherm profiles are plotted. The variation of the Average Nusselt number at the hot wall and the variation of y-component of velocity are presented and discussed. The numerical results show a decrease in the heat transfer with the increase in the particle volume fraction and the same trend in the increase of the Nusselt number with the Rayleigh number. |
| |
| Keywords: | Natural convection nanofluid three-dimensional differentially heated cavity commercial CDF code FLUENT Rayleigh number Nusselt number |
|
|
