Spatial Structure of Fluctuating Pressure Acting on Fixed Tandem Circular Cylinders

Abstract

　In this study, the structure of fluctuating surface pressure acting on a single fixed circular cylinder and a downstream circular cylinder of tandem circular cylinders were investigated by wind tunnel tests. Effects of the distance between the tandem circular cylinders on fluctuating surface pressure acting on a downstream circular cylinder of fixed tandem circular cylinders were investigated. As results of this study, it was found that the spatial correlation of fluctuating pressure on a downstream circular cylinder was affected by distance between the tandem circular cylinders. Furthermore, POD Analysis indicated that the structure of fluctuating surface pressure acting on a single fixed circular cylinder and downstream circular cylinder were different.