Comparisons of two numerical approaches to simulate slatted floor of a slurry pit model - Large eddy simulations

► LES was used to model slatted floor directly (LESD) and as porous media (LESP). ► LESP can estimate air velocity and turbulence in the core of the pit headspace. ► Vertical air motion in the slot was observed for LESD result but not for LESP. ► A dominant Strouhal number 0.23 was found for LESD result but not for LESP result. ► Turbulence transportation was the dominant removal mechanism for both LESD and LESP.