Concerning drift eliminator analysis by numerical simulation, Chan and Golay [2] developed a numerical model to investigate the collection efficiency and the pressure drop for different types of drift eliminator. They assumed laminar flow and the free-slip and noslip conditions were imposed on the walls. They suggested a selection (design) criterion that consisted of setting a pressure drop limit across the eliminator and choose the geometry yielding to the best collection efficiency. Verlaan [3] used the PHOENICS code to predict the flow and collection efficiency on a vane-type drift eliminator. He used a low Reynolds number k–ϵ turbulence model. He optimized the geometry of the eliminator and reduced the pressure drop by 50% without loss of collection efficiency. Wang and James [4] reported a numerical model for the collection efficiency of two waveplate demisters. They obtained a fair agreement between the predicted and the experimental results using a low Reynolds number k–ϵ turbulence model, although large discrepancies were found over a range of droplet sizes. They justified these discrepancies due to the turbulent motion