Flow Around the 3D Square Cylinder and Interference Effects on Double Square Cylinders

Abstract

Using the Cobra probe, the flow around the single three-dimensional square cylinder was tested in wind tunnel, and the effects of cylinders on disturbed flow were discussed. The mean wind loads distributions on cylinder were studied with rigid model pressure testing in uniform flow. As the main concern, the interference effects of double 3D square cylinders were described based on the comparison of wind pressure distributions on interference cylinder and single cylinder, and the relationship between flow characteristics and wind pressure distribution was discussed to prove the feasibility of revealing the interference effects by the flow around the single 3D square cylinders. The results presented in this paper can be used for accessory structure design, evaluations of pedestrian level winds and square-section high-rise building design.