Résumé
The results of a Large-Eddy Simulation of the flow around a perforated plate are described. A temperature difference is imposed across the perforated plate, to study the effusion cooling process. A configuration of full-coverage film cooling is considered: a specific methodology allowing to perform the simulation in a periodic computational domain is presented. The geometry corresponds to classical configurations encountered in gas turbines liners: the hole diameter is 0.5 mm, the thickness of the plate 1 mm, and the hole is angled at 30° respect to the plate. The density ratio is 2.85 and the blowing ratio is M = 1. The flow obtained in such a periodic domain is described, focusing on information relevant to the estimation of mass/momentum/energy fluxes through the plate.