Experimental data is available from the following projects:

Single Wing-Tip Vortices

Sponsors: Office of Naval Research, NASA Langley Aeroacoustics
 

Wake of a lifting wing

Sponsors: Office of Naval Research, NASA Langley Aeroacoustics
 

Counter Rotating Wing-Tip Vortex Pair

Sponsors: DARPA/ARPA
 

Co Rotating Wing-Tip Vortex Pair

Sponsors: DARPA/ARPA
 

Perpendicular Blade Vortex Interaction

Sponsors: NASA Langley Aeroacoustics
 

Plane Wake (Two-Point Correlation Data)

Sponsors: NASA Langley Aeroacoustics

Turbulence/Airfoil Interaction

Sponsor: NASA Langley Aeroacoustics

Passive and Active Trailing Edge Noise Control

Sponsor: NASA Glenn