Submitted by Maria.Kapsalaki on Mon, 10/28/2013 - 11:13
This study employed large-eddy simulation (LES) to investigate wind-driven single-sided natural ventilation for an idealized building model located in an urban environment. Two ventilation cases, single-sided ventilation with an opening on the windward wall and with an opening on the leeward wall, were considered. The airflow rates through the single opening were calculated based on the mean flow fields and the transient flow fields, respectively.
Knowledge and estimation of the wind speed and air flow characteristics, in a city, is of vitalimportance for passive cooling applications and especially in the design of naturallyventilated buildings. This study is referred to the analysis of the wind characteristics in urbancanyons as a function of the free stream wind. The impact on the airflow rate calculation isdiscussed for an urban canyon. The goal of this study is to get a better insight of the impact ofthe urban environment on the ventilation effectiveness.