Abstract
Linear unsteady aerodynamic models are obtained for a NACA 0006 airfoil in a wind tunnel experiment at Reynolds number 65,000. A family of system identification maneuvers, based on a canonical step-up, hold maneuver, are specifically designed to extract relevant unsteady information from phase averaged wind tunnel measurements. Linear models based on these maneuvers are constructed using OKID/ERA for the case of pitching about α0 = 0° and α0 = 10°, as well as the case of pure plunge. It is shown that the identified models are more accurate than Theodorsen's model for all maneuvers, especially those at larger base angle of attack.
| Original language | English (US) |
|---|---|
| Title of host publication | 41st AIAA Fluid Dynamics Conference and Exhibit |
| State | Published - Dec 1 2011 |
| Event | 41st AIAA Fluid Dynamics Conference and Exhibit 2011 - Honolulu, HI, United States Duration: Jun 27 2011 → Jun 30 2011 |
Publication series
| Name | 41st AIAA Fluid Dynamics Conference and Exhibit |
|---|
Other
| Other | 41st AIAA Fluid Dynamics Conference and Exhibit 2011 |
|---|---|
| Country | United States |
| City | Honolulu, HI |
| Period | 6/27/11 → 6/30/11 |
All Science Journal Classification (ASJC) codes
- Fluid Flow and Transfer Processes
- Energy Engineering and Power Technology
- Aerospace Engineering
- Mechanical Engineering
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Cite this
Brunton, S. L., Rowley, C. W., & Williams, D. R. (2011). Linear unsteady aerodynamic models from wind tunnel measurements. In 41st AIAA Fluid Dynamics Conference and Exhibit (41st AIAA Fluid Dynamics Conference and Exhibit).