Verma, Abhishek ; Mittal, Sanjay (2011) A new unstable mode in the wake of a circular cylinder Physics of Fluids, 23 (12). 121701_1-121701_4. ISSN 1070-6631
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Official URL: http://pof.aip.org/resource/1/phfle6/v23/i12/p1217...
Related URL: http://dx.doi.org/10.1063/1.3664869
Abstract
The flow past a circular cylinder looses stability at Re~47, via the primary wake (PW) mode. Linear stability analysis of the steady base flow, in two dimensions, is conducted using a stabilized finite element formulation. A new mode, referred to as the secondary wake (SW) mode, is discovered which is found to be unstable for Re≥ 110.8. The relative roles of the PW and SW mode in the development of Karman vortex shedding are also investigated.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Finite Element Analysis; Flow Instability; Vortices; Wakes |
| ID Code: | 82552 |
| Deposited On: | 13 Feb 2012 06:02 |
| Last Modified: | 13 Feb 2012 06:02 |
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