A Study of Interactions between Two Side-by-Side Square Cylinders by Using 2D Numerical Simulation

Abstract

According to the recent trend of building verticalization the dynamic responses under considering the interaction between buildings becomes important in the wind resistant design. The characteristics of the side-by-side structures are still uncertain, though some studies pointed out that the aerodynamic characteristic and the pattern of the flow are changed significantly by the relative gap distance. In this study, aerodynamic characteristics and dynamic response of two side-by-side square cylinders were investigated by the 2D computational fluid dynamics. The pressure distribution surrounding the two stationary cylinders was found to be symmetry and the interaction is small. However, the interaction becomes remarkable and the responses tend to be increased in the self-induced vibration.