| Download | - View final version: Subsonic aerodynamic coefficients of the SDM at angles of attack up to 90̊ (PDF, 1.8 MiB)
|
|---|
| DOI | Resolve DOI: https://doi.org/10.4224/40003398 |
|---|
| Author | Search for: Huang, X. Z.1; Search for: Beyers, M. E.1 |
|---|
| Affiliation | - National Research Council of Canada
|
|---|
| Format | Text, Technical Report |
|---|
| Physical description | 59 p. |
|---|
| Abstract | A test programme was undertaken to determine the subsonic aerodynamic coefficients of the Standard Dynamics Model at angles of attack up to 90° under conditions of minimal wall interference. Five component aerodynamic coefficients were measured at 0° and 5° sideslip, while a sideslip sweep was performed at high alpha. The onset of flow asymmetry was found to occur at near 26° angle of attack and asymmetrical flow conditions prevailed up to 53°. Large side-force asymmetries at angles of attack between 53° and 69° were attributed to asymmetrical vortex breakdown. The effects of sideslip angle on the aerodynamic characteristics were large and the lack of symmetry with respect to the zero sideslip condition at an angle of attack of 36° was attributed to the effects of forebody flow asymmetries. No definitive effects of wind speed/Reynolds number were observed. Measurable effects of sting diameter on the side-force and moment coefficients were observed at high alpha. Evidence of support-strut interference was found in the lateral-directional coefficients at angles of attack above 69°. |
|---|
| Publication date | 1990-01 |
|---|
| Publisher | National Research Council of Canada. National Aeronautical Establishment |
|---|
| Series | |
|---|
| Language | English |
|---|
| Peer reviewed | No |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | 442f8d60-9414-4460-8f2f-3a4e185cc052 |
|---|
| Record created | 2024-08-02 |
|---|
| Record modified | 2024-08-02 |
|---|
