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Effects of ground proximity on a low aspect ratio propulsive wing/canard configuration
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Stewart, V. R. Kemmerly, G. T. |
| Copyright Year | 1987 |
| Description | The effect of near proximity to the ground are investigated on a low aspect ratio propulsive wing/canard concept at STOL conditions. Data were obtained on a wing/body and wing/body/canard configuration at various heights above the ground, ranging from free air to approximately 1/4 of the mean aerodynamic chord (MAC) above the ground. The data presented and discussed include force and moment coefficients, surface pressure distributions, and downwash angles measured one MAC behind the wing. The test technique, model requirements, and special considerations required for testing these configurations are also discussed. Special model requirements included evenly distributed exit nozzle pressures along four separate nozzles of lengths of one and two feet with only one air supply to the model. Test techniques must recognize and deal with the ground boundary layer as well as the air supply pressure measurement and management. |
| File Size | 9616348 |
| Page Count | 30 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870014989 |
| Archival Resource Key | ark:/13960/t2t48kn17 |
| Language | English |
| Publisher Date | 1987-02-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Chords Geometry Exhaust Nozzles Body-wing Configurations Canard Configurations Low Aspect Ratio Wings Scale Effect Downwash Pressure Distribution Short Takeoff Aircraft Ground Effect Aerodynamics Boundary Layer Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
