Suitably shaped grooves, placed transverse to the flow, can delay flow separation over curved surfaces. When grooves are fully extruded in spanwise direction, they may reduce drag of boat-tailed bodies with vortex shedding, but drawback increasing correlation shedding. We investigate herein effect spanwise-discontinuous through Large Eddy Simulations. A systematic analysis is carried out on num...

In this paper, the oscillating two-dimensional laminar flow about a cylinder and the oscillation of a cylinder in still water are studied. A finite volume method is applied to solve the Navier Stokes equations using SIMPLEC algorithm on a body fitted co-located O-type grid. In this study, the non-dimensional flow numbers, Keulegan-Carpenter and Stokes’ numbers are chosen over a range where diff...

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