Vortex induced oscillations of cylinders at low and intermediate reynolds numbers

Roberto Camassa, Bong Jae Chung, Philip Howard, Richard McLaughlin, Ashwin Vaidya

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

12 Scopus citations


We study the orientational behavior of a hinged cylinder suspended in a water tunnel in the presence of an incompressible flow with Reynolds number (Re), based on particle dimensions, ranging between 100 and 6000 and non-dimensional inertia of the body(I*) in the range 0.1-0.6. The cylinder displays four unique features, which include: steady orientation, random oscillations, periodic oscillations and autorotation.We illustrate these features displayed by the cylinder using a phase diagram which captures the observed phenomena as a function of Re and I*. We identify critical Re and I* to distinguish the different behaviors of the cylinders. We used the hydrogen bubble flow visualization technique to show vortex shedding structure in the cylinder's wake which results in these oscillations.

Original languageEnglish
Title of host publicationAdvances in Mathematical Fluid Mechanics
Subtitle of host publicationDedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday
PublisherSpringer Berlin Heidelberg
Number of pages11
ISBN (Print)9783642040672
StatePublished - 1 Dec 2010


  • Autorotation
  • Vortex Induced Oscillation
  • Vortex Shedding


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