So far, the literature review has highlighted how relevant is to model appropriately the interaction between the water droplets and the turbulent eddies when predicting the drift eliminator collection efficiency. However, no studies regarding LES simulations in drift eliminators have been found in the reviewed literature. Therefore, the main objective of this paper is to determine the best numerical approach to predict the performance of drift eliminators. For this purpose, the results predicted by CFD using RANS and LES turbulent approaches are compared when predicting the wall-bounded shear driven flow inside a drift eliminator. The performance of a lath-type eliminator is evaluated by calculating the collection efficiency and the dimensionless pressure drop coefficient. Three different aspect ratios (b/L = 1/3, 1/4.5 and 1/6) and a wide range of velocities and droplet diameters are considered in the simulations.