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Model aerodynamic test results for a refined actuated inlet ejector nozzle at simulated takeoff and cruise conditions
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nelson, D. P. |
| Copyright Year | 1983 |
| Description | Wind tunnel model tests were conducted to demonstrate the aerodynamic performance improvements of a refined actuated inlet ejector nozzle. Models of approximately one-tenth scale were configured to simulate nozzle operation at takeoff, subsonic cruise, transonic cruise and supersonic cruise. Variations of model components provided a performance evaluation of ejector inlet and exit area, forebody boattail angle and ejector inlet operation in the open and closed mode. Approximately 700 data points were acquired at Mach numbers of 0, 0.36, 0.9, 1.2, and 2.0 for a wide range of nozzle flow conditions. Results show that relative to two ejector nozzles previously tested performance was improved significantly at takeoff and subsonic cruise performance, a C sub f of 0.982, was attained equal to the high performance of the previous tests. The established advanced supersonic transport propulsion study performance goals were met or closely approached at takeoff and supersonic cruise. |
| File Size | 3901339 |
| Page Count | 80 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830018545 |
| Archival Resource Key | ark:/13960/t5s806k9h |
| Language | English |
| Publisher Date | 1983-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Performance Tests Transonic Flight Subsonic Speed Supersonic Speed Nozzle Flow Scale Models Annular Nozzles Ejectors Inlet Nozzles Takeoff Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
