Influence of turbulent wind on air change rates an application with Clim2000 software program

In the framework of a collaboration between EDF and CSTB, we carried out a specific experimental protocol in Bouin house (CSTB site, house completely dedicated for infiltration and air change measurement) with different configurations to study the wind fluctuations. These experimental data are used to validate the pressure elementary models available into CLIM2000 software and especially the infiltration models. The agreement between experimental data and simulated results is acceptable taking into account the difficulty of this kind of experiment. Different ways of improvements and of analysis are still under treatment. Nevertheless, we have  found  that   specific  air   inlets  give  lower ventilation rate than classical ones.