Vortex Induced Oscillations of Cylinders at Low and Intermediate Reynolds Numbers

Roberto Camassa (), Bong Jae Chung (), Philip Howard (), Richard McLaughlin () and Ashwin Vaidya ()
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Roberto Camassa: University of North Carolina, Department of Mathematics
Bong Jae Chung: University of North Carolina, Department of Mathematics
Philip Howard: University of North Carolina, Department of Statistics
Richard McLaughlin: University of North Carolina, Department of Mathematics
Ashwin Vaidya: University of North Carolina, Department of Mathematics

A chapter in Advances in Mathematical Fluid Mechanics, 2010, pp 135-145 from Springer

Abstract: Abstract 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.

Keywords: Vortex Induced Oscillation; Autorotation; Vortex Shedding (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-04068-9_8

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DOI: 10.1007/978-3-642-04068-9_8

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