Abstract
A new discrete vortex method combined with the singularity method is described, which was developed for the analysis of an unsteady separated flow around a body of complicated shape such as a structure. In this method, the flow around the body is assumed to be potential flow except in the, region of free shear layers, and the free shear region and the body are represented by discrete vortices.
This method is applied to calculations of the flow around a single square prism and two square prisms perpendicular to the flow. The formation of vortex sheets from square prisms is calculated and the calculated results predict the real phenomena accurately.
