Corner Vortex Structures Within Recirculation Zones of Confined Bluff-Body Flows

What is it about?

Recently observed vortex structures in the recirculation zone of non-reacting and reacting flows over a confined bluff-body are investigated computationally. These vortex structures appear in the corners between the bluff-body and side-walls of the combustor, and enhance mixing and residence times in the recirculation zone. Boundary layer separation on the side-walls of the combustor is a necessary condition for the formation of these ``corner vortex structures``.

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