This image shows the hairpin vortex that forms behind the tab. The vortex is shed off in a time dependent fashion. It is better seen on either the short animation (467kB) or the long animation (3214kB). This time dependent vortex pattern was calculated with the large eddy simulation model in Fluent V5.
This image shows the counter-rotating longitudinal vortices behind one tab.
This image shows the interaction between the counter-rotating longitudinal vortices coming from a first tab array, and then interacting with the hairpin vortices and longitudinal vortices coming from the second tab array. This is again better viewed from the animation (6338kB)
This image shows the turbulent kinetic energy just behind the tab. The red region corresponds to the high turbulence intensity hairpin vortex.
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