Abstract
In this paper, vibration phenomena of a curved pipe with a guide vane were considered. In order to decide analysis conditions of Computational Fluid Dynamics (CFD) based on Large Eddy Simulation (LES), CFD results were compared to Particle Image Velocimetry (PIV) results for a downscale model. Moreover, Fluid-Structure Interaction Analysis was conducted for the elbow pipe fitting having actual size. As a result of this analysis, stress fluctuation on the trailing edge of the guide vane was largest. This result indicates that vibration phenomena are possible to occur on the trailing edge of the guide vane.