to a fixed-wing aircraft, the vortices trailing from a hovering helicopter remain in close proximity to the aircraft lifting surfaces.
Slices of the flow field (PIV image frames) are shown at various azimuthal locations with respect to the rotor blade. In each frame contours of vorticity are plotted. The vorticity is computed from the 3-D measurements of the velocity field.
The data was acquired during a cooperative effort between the University of Maryland and TSI, Inc. The TSI PowerView™ PIV System integrates Tecplot® into its INSIGHT™ software so that the results of many velocity field measurements are easily combined into a summary figure such as this.
_____________________ PowerView and INSIGHT are trademarks of TSI Incorporated. Tecplot® is a registered trademark of Tecplot, Inc., Bellevue, WA, USA.
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