Modulated global mode of a controlled wake

V. Parezanović, O. Cadot

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


The 3D properties of the Bénard von Kármán global mode of the wake behind a 2D bluff body are investigated in an experimental study when a smaller, circular control cylinder is placed in the wake. Previous investigations [1, 2, 3], have shown the influence of a small control cylinder on the global frequency of the wake. The main effect is related to the interaction of vorticity produced by the control cylinder with the vorticity created by the bluff body. However, for certain positions of control, the envelope of the local velocity signal shows a modulation of amplitude. The search in the span-wise direction has shown the effects of the control cylinder’s presence on existence and location of the modulation.

Original languageBritish English
Title of host publicationAdvances in Turbulence XII - Proceedings of the 12th EUROMECH European Turbulence Conference, 2009
EditorsBruno Eckhardt
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages4
ISBN (Print)9783642030840
StatePublished - 2009
Event12th EUROMECH European Turbulence Conference, ETC12 2009 - Marburg, Germany
Duration: 7 Sep 200910 Sep 2009

Publication series

NameSpringer Proceedings in Physics
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941


Conference12th EUROMECH European Turbulence Conference, ETC12 2009


  • Bluff Body
  • Global Frequency
  • Global Mode
  • Recirculation Zone
  • Vortex Tube


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