
The flow around a bluff body is studied computationally at high Reynolds number to understand the mechanism of drag crisis and the transitional flow phenomena to turbulence. It is found that simulation based on Cartesian coordinates system can capture the drag crisis. The present grid system is too coarse to resolve the boundary layer structure. This suggests that even the drag crisis phenomena are determined mainly by large structure of the flow field. 資料番号: AA0032827012 レポート番号: NAL SP-54
