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Transonic off-design drag and performance of three mixed-compression axisymmetric inlets
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Meleason, E. T. Woollett, R. R. Choby, D. A. |
| Copyright Year | 1975 |
| Description | An experimental investigation was conducted to determine the off-design drag and pressure performance of three axisymmetric supersonic inlets in the transonic speed range. For typical engine airflows at Mach 0.8 the drag coefficient varied from 0.045 to 0.09; at Mach 1.2 the largest drag coefficient measured was 0.25. Below Mach 0.9 a lower drag resulted when all or at least part of the excess weight flow was spilled over the cowl rather than through the bypass doors; above Mach 1.1 the lowest drag was obtained by bypassing excess flow. |
| File Size | 3432697 |
| Page Count | 50 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19750015530 |
| Archival Resource Key | ark:/13960/t2s51fc8r |
| Language | English |
| Publisher Date | 1975-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Performance Tests Cowlings Supersonic Inlets Transonic Speed Aerodynamic Coefficients Spilling Drag Measurement Flow Deflection Supersonic Drag 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 |
