Basic Study on Air Flow around Buildings by Particle Image Velocimetry

Part1 PIV Measurements of Outdoor Air Flow around Two Adjacent Building Models

Abstract

Outdoor airflow distribution around buildings largely differs depending on regional wind direction and wind velocity, building shape, surrounding conditions around the building.
In this study, airflow visualization and Particle Image Velocimetry(PIV) measurement for models combining middle and high rise buildings using large boundary layer wind tunnel. In addition, spatial distributions of Gust Factor, which is an important indicator for evaluating the wind environment in urban areas, are calculated from the PIV measurement results and grasp the characteristics of the outdoor airflow around the high-rise building.