Abstract
This paper investigates the impact of introducing a switchable vortex generator (SVG), acting as a mini-tab, on the aerodynamic performance of a high-aspect-ratio wing's outer section in transonic regime. A parametric study is conducted employing computational fluid dynamics 2D simulations, focusing on the aerodynamic effects of changing the chord-wise position and height of the vane of a SVG located on the airfoil upper surface in both nominal cruise conditions and for varying angles of attack. The analysis reveals that mini-tabs can strongly affect the aerodynamic forces produced by the wing section, showing great potential for load alleviation and control, but also emphasising the need for a careful parameter selection to reduce undesirable effects such as the generation of shock waves. In cruise conditions, lift reduction increases with the vane height and has its maximum for chord-wise positions at 60% of the chord-length. However, SVGs located in the first half of the chord-length yield more robust performance for varying angle of attack, without sharp lift variations or generated shock waves, and a delayed stall onset. High SVGs (≥3% chord-length) can also lead to strong shock waves on the airfoil lower surface at small or negative angle of attack, while small SVGs (
Original language | English |
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Title of host publication | Proceedings of the AIAA SCITECH 2024 Forum |
Publisher | American Institute of Aeronautics and Astronautics Inc. (AIAA) |
Number of pages | 21 |
ISBN (Electronic) | 978-1-62410-711-5 |
DOIs | |
Publication status | Published - 2024 |
Event | AIAA SCITECH 2024 Forum - Orlando, United States Duration: 8 Jan 2024 → 12 Jan 2024 |
Conference
Conference | AIAA SCITECH 2024 Forum |
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Country/Territory | United States |
City | Orlando |
Period | 8/01/24 → 12/01/24 |