Abstract
This research is focused on the wind characteristics and the ventilation performance in the consecutive street canyon using CFD (Computational Fluid Dynamics) analysis. In order to achieve the CFD analysis of the consecutive street canyon, the cyclic boundary condition was set. To estimate the effects of complex of building and atmospheric stability on ventilation performance, 4 cases varying building height and arrangement and 3 cases with various atmospheric stability were conducted. In order to obtain the performance of ventilation of pedestrian space with urban street canyon, pollutants were released in the region under 7.5m high. Furthermore, ventilation rate and PFR (Purging Flow Rate) were calculated from the result of each case. Moreover, the ventilation efficiency in canyon was analyzed how ventilation performance is influenced by the form of canyon and the various atmospheric stabilities has been studied.
