Wind tunnel experiments of low-aspect-ratio plates are performed at a chord-based Reynolds number of 8 × 10~4. Previous force and moment measurements reveal that the wings experience a roll stall event at increased angles of attack for non-zero sideslip angles. These measurements represent global effects of the flow on the plates. In the present paper, stereoscopic digital particle image velocimetry (S-DPIV) is used to reconstruct the volumetric mean flow field over wings at several different sideslip angles. These data offer local, quantitative information about the force distribution on the wings, particularly that which is associated with an asymmetrical orientation of the tip vortices (TVs). A detailed description of the vortex structure, in particular the TVs, is presented. Also, using the circulation of the TVs to estimate the lift coefficient captures the lift trend with sideslip angle and provides a reasonable magnitude as well.
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