Stereo Particle Image Velocimetry measurements of the flow field around a unity aspect ratio wing with a sinusoidal leading-edge have been carried out at a Reynolds number Re = 140, 000 for two angles of attack, a = 0º and 15º. These measurements are intended to be used for improved computational modeling of the flow employing Detached Eddy Simulations. For this reason, numerical predictions have also been carried out for the mentioned flow cases, using the “F2-shielded” modeling and the “delayed” modeling approaches for the SST k-ω turbulence model, as well as a reference Reynolds-Averaged Navier-Stokes calculation. The results have demonstrated the superior performance of the “delayed” modeling at high incidence. However, the latter approach unexpectedly fails at low incidence, hence indicating the need for improved boundary layer transition modeling.

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