Study of mean wind pressures and forces acting on yawed circular cylinders with small aspect ratio are examined by wind tunnel tests. In this report, the distributions of mean drag force coefficients and mean pressure coefficients along span axis caused by yaw angles are described and Reynolds number effects for variation of those values are discussed.
The mean drag force coefficients on the cylinder with a yaw angle 0 degree are almost a uniform value along span axis regardless of Reynolds numbers. When approach flow is not at right angles with a cylinder, , the drag force becomes smaller according as the measurement location is more leeward..
For Re=200000 range, the mean pressure coefficients change according to measurement positions except for a yaw angle 0 degree. The wind pressure distribution at a most windward position is different from ones at other positions.
For Re=400000 range, the mean pressure coefficients have not change by the measurement position for all yaw angles.
