The fluttering flag instability has been thoroughly studied through experimental, computational and theoretical means. However, each of these studies only considers the boundary conditions where a flagpole or other tethering mechanism precedes the plate in the fluid flow. Under the inverse condition, where the so-called flag is fixed by its downstream edge in the fluid flow, three regions of behavior exist: straight, flapping, and bent back. This paper expands on these findings by closely examining the transition regions between straight and flapping and flapping and bent back. The onset mechanism of the instability and the terminating mechanism are shown to be dependent on different factors. The region of flapping occurs within a narrow range of non-dimensional bending stiffness, with the region boundaries depending on the aspect ratio and angle of attack of the plate.
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ASME 2014 Pressure Vessels and Piping Conference
July 20–24, 2014
Anaheim, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4601-8
PROCEEDINGS PAPER
The Effect of Aspect Ratio and Angle of Attack on the Transition Regions of the Inverted Flag Instability Available to Purchase
Julia Cossé,
Julia Cossé
California Institute of Technology, Pasedena, CA
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John Sader,
John Sader
University of Melbourne, Melbourne, VIC, Australia
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Daegyoum Kim,
Daegyoum Kim
California Institute of Technology, Pasedena, CA
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Cecilia Huertas Cerdeira,
Cecilia Huertas Cerdeira
California Institute of Technology, Pasedena, CA
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Morteza Gharib
Morteza Gharib
California Institute of Technology, Pasedena, CA
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Julia Cossé
California Institute of Technology, Pasedena, CA
John Sader
University of Melbourne, Melbourne, VIC, Australia
Daegyoum Kim
California Institute of Technology, Pasedena, CA
Cecilia Huertas Cerdeira
California Institute of Technology, Pasedena, CA
Morteza Gharib
California Institute of Technology, Pasedena, CA
Paper No:
PVP2014-28445, V004T04A046; 5 pages
Published Online:
November 18, 2014
Citation
Cossé, J, Sader, J, Kim, D, Cerdeira, CH, & Gharib, M. "The Effect of Aspect Ratio and Angle of Attack on the Transition Regions of the Inverted Flag Instability." Proceedings of the ASME 2014 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. Anaheim, California, USA. July 20–24, 2014. V004T04A046. ASME. https://doi.org/10.1115/PVP2014-28445
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