Loading...
Please wait, while we are loading the content...
Similar Documents
Exhaust environment measurements of a turbofan engine equipped with an afterburner and 2d nozzle
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Brase, L. O. |
| Copyright Year | 1990 |
| Description | A test to measure the acoustic noise and static pressure environment on a structure exposed to engine exhaust flow was conducted at the NASA Lewis Research Center Propulsion Systems Laboratory by using an F100 derivative engine with a two-dimensional convergent-divergent (2D/CD) non-flight-weight demonstrator nozzle. A highly instrumented, water cooled flat panel was placed behind the 2D/CD nozzle, and tests were conducted at simulated Mach/altitude flight conditions with the engine at military or maximum-afterburner power setting. The panel instrumentation consisted of acoustic pressure microphones, thermocouples, and static-pressure pickups. Measurements indicated that the exhaust environment may excite structural resonances up to 10,000 HZ and that overall sound pressure levels decrease with increasing altitude. |
| File Size | 12412644 |
| Page Count | 59 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900012444 |
| Archival Resource Key | ark:/13960/t82k1bh6m |
| Language | English |
| Publisher Date | 1990-05-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Static Pressure Exhaust Nozzles Jet Aircraft Noise Simulation Exhaust Gases Structural Vibration Turbofan Engines Divergent Nozzles Pressure Measurement Noise Measurement Afterburning Altitude 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 |
