Loading...
Please wait, while we are loading the content...
Similar Documents
Model aerodynamic test results for two variable cycle engine coannular exhaust systems at simulated takeoff and cruise conditions. comprehensive data report. volume 2: tabulated aeroynamic data book 1
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nelson, D. P. |
| Copyright Year | 1981 |
| Description | Tabulated data from wind tunnel tests conducted to evaluate the aerodynamic performance of an advanced coannular exhaust nozzle for a future supersonic propulsion system are presented. Tests were conducted with two test configurations: (1) a short flap mechanism for fan stream control with an isentropic contoured flow splitter, and (2) an iris fan nozzle with a conical flow splitter. Both designs feature a translating primary plug and an auxiliary inlet ejector. Tests were conducted at takeoff and simulated cruise conditions. Data were acquired at Mach numbers of 0, 0.36, 0.9, and 2.0 for a wide range of nozzle operating conditions. At simulated supersonic cruise, both configurations demonstrated good performance, comparable to levels assumed in earlier advanced supersonic propulsion studies. However, at subsonic cruise, both configurations exhibited performance that was 6 to 7.5 percent less than the study assumptions. At takeoff conditions, the iris configuration performance approached the assumed levels, while the short flap design was 4 to 6 percent less. Data are provided through test run 25. |
| File Size | 23476562 |
| Page Count | 405 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810008562 |
| Archival Resource Key | ark:/13960/t3c010t62 |
| Language | English |
| Publisher Date | 1981-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Static Pressure Variable Cycle Engines Supersonic Flight Velocity Distribution Takeoff Exhaust Systems Tables Data Nozzle Design Exhaust Nozzles Jet Thrust Ejectors Wind Tunnel Tests Cruising Flight Irises Mechanical Apertures Deflectors Aerodynamic Characteristics 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 |
