Wind Tunnel Tests on The Nature of Regional Wind Flow in The 270m Square Residential Area, Using The Real Model

摘要

In this paper, a method for evaluating the nature of regional wind flow is presented along with the result of the measurement obtained through this method with wind tunnel tests by use of 14 real residential areas (270m square each) as their models. In the wind tunnel tests, the wind velocity at a pedestrian level (1.5m from the ground level) is measured for 14 residential areas which have some housing patterns. The results of 14 areas shows that the nature of regional wind flow in the 270m square residential area is related to the gross buildings coverage ratio in each area, and shows that as a whole, the spatial average of wind velocity in mid-to-high-rise apartment houses areas is stronger than that in low-rise housing areas even though the gross buildings coverage ratio is the same for both areas.