There have been a number of studies on the flow field around a pitching airfoil and a heaving airfoil. Especially, the relationship between the wake structure and the characteristics of dynamic thrust has been clarified. Recently, the flow field around an elastic body has been attracted significant attention and the flow field is treated as a coupled problem between the fluid and structure. The flow field around an elastic body has been investigated primarily by numerical means, and there have been experimental studies. However, the details of the impact of elastic deformation effects on the growth process of vortices generated in the vicinity of the wall have not been clarified. In this study, we investigate the growth process of vortices generated in the vicinity of the wall of elastic moving airfoils experimentally. The elastic NACA0010 generates vortices in a large region of a wall and rolls up vortices, with the vortices growing gradually toward the trailing edge as a result of elastic deformation. The elastic NACA0010 has a characteristic whereby vortices having a rotational component that is stronger than the shear-strain component due to the vorticities in the vicinity of a wall of the elastic NACA0010 change not only spatial change of x- and y-components.
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ASME 2013 Fluids Engineering Division Summer Meeting
July 7–11, 2013
Incline Village, Nevada, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5555-3
PROCEEDINGS PAPER
The Growth of Vortices in the Vicinity of a Wall of Elastic Moving Airfoils
Masaki Fuchiwaki,
Masaki Fuchiwaki
Kyushu Institute of Technology, Iizuka, Fukuoka, Japan
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Tomoki Kurinami,
Tomoki Kurinami
Kyushu Institute of Technology, Iizuka, Fukuoka, Japan
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Kazuhiro Tanaka
Kazuhiro Tanaka
Kyushu Institute of Technology, Iizuka, Fukuoka, Japan
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Masaki Fuchiwaki
Kyushu Institute of Technology, Iizuka, Fukuoka, Japan
Tomoki Kurinami
Kyushu Institute of Technology, Iizuka, Fukuoka, Japan
Kazuhiro Tanaka
Kyushu Institute of Technology, Iizuka, Fukuoka, Japan
Paper No:
FEDSM2013-16362, V01BT13A003; 7 pages
Published Online:
December 13, 2013
Citation
Fuchiwaki, M, Kurinami, T, & Tanaka, K. "The Growth of Vortices in the Vicinity of a Wall of Elastic Moving Airfoils." Proceedings of the ASME 2013 Fluids Engineering Division Summer Meeting. Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics. Incline Village, Nevada, USA. July 7–11, 2013. V01BT13A003. ASME. https://doi.org/10.1115/FEDSM2013-16362
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