Abstract
A proper understanding of vorticity production, reorientation, and annihilation around and in the wake of complex three-dimensional bodies such as unmanned combat air vehicles (UCAVs) would provide critical insight for effective flow-control development in unsteady environments. Force measurement and steady three-dimensional flow visualization of low Reynolds number baseline cases have been carried out on a steady delta wing. Force measurements, which were conducted at angles of attack 10°, 15°, 20°, 25° and 30°, show that coefficient of drag has a tendency to increase with angle of attack, while coefficient of lift reaches its maximum value at 20°. Reconstructed three-dimensional time-averaged flow visualization conducted at angle of attack 10°, 15°, 20°, 25° and 30° shows vortices with larger size and strength are generated and dissipate faster at higher angles of attack. These results compare analogously with similar baseline experimental results at high Reynolds number.
Original language | English (US) |
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Title of host publication | 2018 Fluid Dynamics Conference |
Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
ISBN (Print) | 9781624105531 |
DOIs | |
State | Published - Jan 1 2018 |
Event | 48th AIAA Fluid Dynamics Conference, 2018 - Atlanta, United States Duration: Jun 25 2018 → Jun 29 2018 |
Other
Other | 48th AIAA Fluid Dynamics Conference, 2018 |
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Country | United States |
City | Atlanta |
Period | 6/25/18 → 6/29/18 |
ASJC Scopus subject areas
- Aerospace Engineering
- Engineering (miscellaneous)