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Absolute instabilities and self-sustained oscillations in the wake of circular cylinders

Journal Article · · Phys. Rev. Lett.; (United States)
The Karman vortex street in the wake of a circular cylinder is shown to be due to an absolute instability of the flow in the near wake. A new means of instability analysis is used, involving mappings from the complex k plane to the complex ..omega.. plane.
Research Organization:
Ocean Engineering Department, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
OSTI ID:
5925260
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 59:17; ISSN PRLTA
Country of Publication:
United States
Language:
English