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Vortex Formation and Force Generation Mechanisms of the DelFly II in Hovering Flight
Date
2014-08-12
Author
Tenaglia, A
Perçin, Mustafa
Van Oudheusden, Bas W.
Deng, Shuanghou
Remes, Bart
Metadata
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This paper addresses the unsteady aerodynamic mechanisms in the hovering flight of the DelFly II flapping-wing Micro Aerial Vehicle (MAV). Stereoscopic Particle Image Velocimetry (Stereo-PIV) were carried out around the wings at a high framing rate. Thrust-force was measured to investigate the relation between the vortex dynamics and the aerodynamic force generation. The results reveal that the Leading-Edge-Vortex (LEV), as well as the high flexibility of the wings, have a major effect on thrust generation. Comparison of three wing pairs with different aspect ratio (AR) is also reported, yielding significant differences in both vortical structures and thrust generation.
Subject Keywords
IMAV2014
,
MAV
,
Micro Air Vehicle
,
Vortex Formation
,
Force Generation Mechanism
,
Delfly II
,
Hovering Flight
URI
https://hdl.handle.net/11511/84603
DOI
https://doi.org/10.4233/uuid:d503baae-c4d9-4b3d-ac87-2f25ad793d5a
Conference Name
International Micro Air Vehicle Conference and Flight Competition (IMAV2014) (12 - 15 Ağustos 2014)
Collections
Department of Aerospace Engineering, Conference / Seminar
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Flow visualizations have been performed on a free flying, flapping-wing micro air vehicle (MAV), using a large-scale particle image velocimetry (PIV) approach. The PIV method involves the use of helium-filled soap bubbles (HFSB) as tracer particles. HFSB scatter light with much higher intensity than regular seeding particles, comparable to that reflected off the flexible flapping wings. This enables flow field visualization to be achieved close to the flapping wings, in contrast to previous PIV experiments ...
Flow visualization around a flapping-wing micro air vehicle in free flight
Del Estal Herrero, Alejandro; Perçin, Mustafa; Karasek, Matej; Van Oudheusden, Bas W. (null; 2018-10-05)
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A. Tenaglia, M. Perçin, B. W. Van Oudheusden, S. Deng, and B. Remes, “Vortex Formation and Force Generation Mechanisms of the DelFly II in Hovering Flight,” Delft, Hollanda, 2014, p. 1, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84603.