Large Eddy Simulation with Immersed Boundary Method for Tall Building in Turbulent Boundary Layer Flow

Abstract

The prediction accuracy of CFD has been reported by many studies by comparing the results of wind force coefficients derived from wind tunnel tests. The authors have been investigating the prediction accuracy of their own code for LES (Large-eddy simulation) on tall buildings with various configurations to determine its usefulness in wind force evaluation by CFD. In this study, to clarify the effects of Immersed Boundary Method on LES prediction accuracy, we carried out numerical simulations for a square cylinder placed in turbulent boundary layer flow, and compared the results with those of wind tunnel tests.