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Acoustic measurements from a rotor blade-vortex interaction noise experiment in the german-dutch wind tunnel (dnw)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schultz, K.-J. Elliott, J. W. Martin, Ruth M. Splettstoesser, W. R. |
| Copyright Year | 1988 |
| Description | Acoustic data are presented from a 40 percent scale model of the 4-bladed BO-105 helicopter main rotor, measured in the large European aeroacoustic wind tunnel, the DNW. Rotor blade-vortex interaction (BVI) noise data in the low speed flight range were acquired using a traversing in-flow microphone array. The experimental apparatus, testing procedures, calibration results, and experimental objectives are fully described. A large representative set of averaged acoustic signals is presented. |
| File Size | 4333925 |
| Page Count | 181 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880009834 |
| Archival Resource Key | ark:/13960/t8sb9001g |
| Language | English |
| Publisher Date | 1988-03-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Acoustic Measurement Helicopters Calibrating Low Speed Rotors Wind Tunnel Tests Blade-vortex Interaction Wind Tunnel Models Arrays Aeroacoustics Microphones Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
