Computed Symmetry Plane Velocity Vectors

^ Computed velocity vectors.

Notice that the flow in the separated region is highly reversed. It is difficult to get a CFD program to accurately model reversed flow. In this simulation, the flow pattern is assumed to be steady and symmetrical, although in the experiments, the flow was unsteady . HOwever, the basic features of the flow and the drag on the body are predicted accurately. Compare with Laser Sheet Light particle paths