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Noise generated by a propeller in a wake
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Block, P. J. W. |
| Copyright Year | 1984 |
| Description | Propeller performance and noise were measured on two model scale propellers operating in an anechoic flow environment with and without a wake. Wake thickness of one and three propeller chords were generated by an airfoil which spanned the full diameter of the propeller. Noise measurements were made in the relative near field of the propeller at three streamwise and three azimuthal positions. The data show that as much as 10 dB increase in the OASPL results when a wake is introduced into an operating propeller. Performance data are also presented for completeness. |
| File Size | 2196046 |
| Page Count | 72 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840018314 |
| Archival Resource Key | ark:/13960/t2w42kw64 |
| Language | English |
| Publisher Date | 1984-05-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Chords Geometry Anechoic Chambers Propellers Aircraft Noise Wind Tunnel Tests Aircraft Wakes Near Fields Aerodynamic Noise Airfoils Propeller Efficiency Noise Measurement 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 |
