Open Accessexperimental investigation on stall flutter over a vertically mounted rigid finite wing
Author(s) -
Renan Francisco Soares,
İlyas Karasu,
Bharathram Ganapathisubramani
Publication year - 2021
Publication title -
international symposium on particle image velocimetry.
Language(s) - English
Resource type - Journals
ISSN - 2769-7576
DOI - 10.18409/ispiv.v1i1.200
Subject(s) - stall (fluid mechanics) , wing , freestream , flutter , wind tunnel , airfoil , structural engineering , engineering , aerospace engineering , aerodynamics , acoustics , marine engineering , physics , mechanics , reynolds number , turbulence
As stall flutter has relevant engineering implications, such as in blades of wind turbine and HALE (highaltitude long-endurance aircraft). This work presents the experimental investigation of rigid wing setup in a closed-circuit wind tunnel having 2.1 m × 1.5 m test section. The experimental campaign reached stable and symmetrical LCO within the freestream range from 9 m/s up to 14 m/s (1.69 × 105 < Re < 2.63 × 105 ). Two techniques were used for position tracking: one mechatronic and one image-based. The latter used ‘shakethe-box’ method applied to a body, which has proven a successful approach as a non-intrusive tool.