Host: Science Council of Japan
Co-host: Architectural Institute of Japan, Japan Association for Wind Engineering, The Institute of Electrical Engineering of Japan, Japan Society of Steel Construction, Japan Society of Civil Engineering, Meteorological Society of Japan
Pages 40
This study describes the wind force and the pressure characteristics on several D-sectioned cylinders of which section was composed of a plane and an arc at the crossing angular position α. Models of α≤53° have a small drag coefficient, because of the flow separated from the leading edge re-attached on the after body. On the other hand, models of α≥60° have a large drag coefficient due to the complete separation of the flow. When a oblique wind attacks to a D-sectioned model, the strong negative pressure was observed near the leading edge. Galloping on the model of α=53° will occur so that the lateral force of the model has the obvious negative gradient.
