Abstract
This study examines the application of a porous model in computational fluid dynamics (CFD) analysis to simulate the effect of passive cooling method to form a comfortable outdoor thermal environment. We developed a passive cooling louver with evaporative cooling function, which can not only reduce solar radiation and provide ventilation, but also generate cool radiation and provide cool air. These functions were evaluated using CFD analysis with human scale resolution by treating the louver as an equivalent columnar porous media, to decrease the computational load.