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Core noise measurements on a yf-102 turbofan engine
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Karchmer, A. M. McArdle, J. G. Penko, P. F. Reshotko, M. |
| Copyright Year | 1977 |
| Description | Core noise from a YF-102 high bypass ratio turbofan engine was investigated through the use of simultaneous measurements of internal fluctuating pressures and far field noise. Acoustic waveguide probes, located in the engine at the compressor exit, in the combustor, at the turbine exit, and in the core nozzle, were employed to measure internal fluctuating pressures. Spectra showed that the internal signals were free of tones, except at high frequency where machinery noise was present. Data obtained over a wide range of engine conditions suggest that below 60% of maximum fan speed the low frequency core noise contributes significantly to the far field noise. |
| File Size | 3479532 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770010121 |
| Archival Resource Key | ark:/13960/t2d84410f |
| Language | English |
| Publisher Date | 1977-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Cores Engine Noise Jet Aircraft Noise Far Fields Turbofan Engines F-102 Aircraft Noise Measurement Internal Pressure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
