活性白土を用いた風洞実験による水平屋根,山形屋根の屋上積雪形状

抄録

This is a report on our research on the ratio of the snow depth on the flat roof, the gable roof to that on the ground by windtunnel tests with activated clay particles. The results are: 1. The ratio of the snow depth on the roofs to that on the ground usually decreases as the wind grows stronger and increases as the wind grows weaker. 2. As the wind grows stronger, the ratio of the snow depth on the flat roof to that on the ground is usually less than the ratio of the snow depth on the gable roof to that of the snow depth on the ground. 3. As the wind grows stronger, the ratio of the snow depth on the gable roof to that on the ground shows the maximum ratio at the roof inclination of about 25°. The ratio increases as the inclination increases from 5° to about 25° and decreases as the inclination grows lager than about 25°.