Three dimensional structure of wake behind a square prism

Part 1: Mean flow

Abstract

The flow ground of various object rotations has been examined by the development or spread of CFD and PIV. However, the flow around a three-dimensional object represented by a building is complicated, and it cannot always become clear about the details. On the unsteady interference of the flows from the top and the sides of the prism, it cannot be said in particular that it is elucidated though various trials have been accomplished till now. In this report, based on measurement results of a 3 dimensional square prism model of aspect ratio 2.7 by PIV, we examined an average flow in part 1.