OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Aerodynamic analysis of transitional wings encountering high amplitude streamwise gust

Ferrand, Valérie and Gowree, Erwin Ricky Aerodynamic analysis of transitional wings encountering high amplitude streamwise gust. (2022) In: 56th 3AF International Conference on Applied Aerodynamics, 28 March 2022 - 30 March 2022 (Toulouse, France).

[img] (Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader


We are interested here in the effect of high amplitude streamwise gusts felt by fixed rigid wings at pre-stall angles of incidence in low Reynolds numbers ($Re\approx 50 \times 10^3 - 200 \times 10^3$) flow conditions. An experimental rig has been developed to reproduce a cyclic variation of the freestream axial velocity representative of the perturbations micro-aerial vehicles can encounter in a urban environment. The temporal evolution of the aerodynamic forces (lift, drag and pitching moment) recorded during the gust show significant deviations from the quasi-static predictions that unsteady but inviscid methods are unable to capture. These deviations appear to be related to the dynamic of both the laminar separation bubble and the laminar separation without trailing edge reattachment, also known as the ``short" and ``long bubble" respectively.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Laboratory name:
Deposited On:23 Jan 2023 12:00

Repository Staff Only: item control page