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Nasa langley low speed aeroacoustic wind tunnel: background noise and flow survey results prior to fy05 construction of facilities modifications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Henderson, Brenda S. Booth Jr., Earl R. |
| Copyright Year | 2005 |
| Description | The NASA Langley Research Center Low Speed Aeroacoustic Wind Tunnel is a premier facility for model-scale testing of jet noise reduction concepts at realistic flow conditions. However, flow inside the open jet test section is less than optimum. A Construction of Facilities project, scheduled for FY 05, will replace the flow collector with a new design intended to reduce recirculation in the open jet test section. The reduction of recirculation will reduce background noise levels measured by a microphone array impinged by the recirculation flow and will improve flow characteristics in the open jet tunnel flow. In order to assess the degree to which this modification is successful, background noise levels and tunnel flow are documented, in order to establish a baseline, in this report. |
| File Size | 5085056 |
| Page Count | 31 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050170450 |
| Archival Resource Key | ark:/13960/t2b907b2w |
| Language | English |
| Publisher Date | 2005-04-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Nasa Programs Test Facilities Acoustic Measurement Jet Flow Jet Aircraft Noise Noise Reduction Flow Characteristics Data Processing Low Speed Wind Tunnels Background Noise Microphones Noise Intensity Wind Tunnel Tests Aeroacoustics 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 |
