Flow Pattern around a Circular Cylinder Located in a Harmonically Oscllatory Flow

Abstract

Flow pattern around a circular cylinder located in a harmonically oscillatory flow is visualized using the tracer particle method. The technique which enables to distinguish the directions of movements of the individual particles on a photo-print was employed. Both descrip-tions of the flow fields using the contour lines of vorticity and equivalent vortex strength, which are based on the resultant data of the velocity vector distributions, are presented.