Journal article
Flutter, Tumble and Vortex Induced Autorotation
Theoretical and computational fluid dynamics, Vol.17(3), pp.165-170
04/2004
DOI: 10.1007/s00162-003-0101-5
Abstract
The phenomenon of flutter and tumble of objects in free fall has been studied using two-dimensional numerical simulations of uniform flow past a plate which is free to rotate about a fixed axis through its centroid. Particular focus is on the effect of Reynolds number and plate thickness-to-length ratio on the flutter-to-tumble transition and on the observed frequency of the angular motions. Simulations indicate that the tendency to tumble increases with increasing Reynolds number and decreasing thickness ratio. A case is also made that the tumbling frequency for two-dimensional plates is governed by a Karman type vortex shedding process. These results for this pinned plate have also been verified by simulating a limited number of free-fall cases.
Details
- Title: Subtitle
- Flutter, Tumble and Vortex Induced Autorotation
- Creators
- Rajat Mittal - Department of Mechanical and Aerospace Engineering The George Washington University DC 20052 Washington U.S.AVeeraraghavan Seshadri - Department of Mechanical and Aerospace Engineering The George Washington University DC 20052 Washington U.S.AHolavanahalli S Udaykumar - Department of Mechanical Engineering University of Iowa IA 52242 Iowa City U.S.A
- Resource Type
- Journal article
- Publication Details
- Theoretical and computational fluid dynamics, Vol.17(3), pp.165-170
- DOI
- 10.1007/s00162-003-0101-5
- ISSN
- 0935-4964
- eISSN
- 1432-2250
- Publisher
- Springer-Verlag; Berlin/Heidelberg
- Language
- English
- Date published
- 04/2004
- Academic Unit
- Injury Prevention Research Center; Mechanical Engineering
- Record Identifier
- 9984064207202771
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