Abstract
This work undertakes a numerical study of turbulent incompressible flows in lid-driven cubical cavities using Large Eddy Simulation and two sub-grid scale models, i.e., the WALE (Wall-Adapting Local Eddy-viscosity) model and the corresponding dynamic sub-grid model (DSGS). In the process of using DSGS, an optimal value of constant C-W of the WALE model was determined for a pre-set Reynolds number Re = 10(4). The computed numerical results showed very good agreement with those Direct Numerical Simulation (DNS) results and with the experimental measurements found in the literature. Optimal values of C-W were determined afterwards with the DSGS model and they were proposed for the analysis of higher Reynolds number turbulent flows. At the end, a power law correlation between C-W and Re was proposed for the range 10(4) <= Re <= 3 x 10(4). (C) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.