Vortex induced oscillations of cylinders at low and intermediate reynolds numbers

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

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

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 proceeding › Chapter › peer-review

11 Scopus citations

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.

Original language	English
Title of host publication	Advances in Mathematical Fluid Mechanics
Subtitle of host publication	Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday
Publisher	Springer Berlin Heidelberg
Pages	135-145
Number of pages	11
ISBN (Print)	9783642040672
DOIs	https://doi.org/10.1007/978-3-642-04068-9_8
State	Published - 1 Dec 2010

Keywords

Autorotation
Vortex Induced Oscillation
Vortex Shedding

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

Cite this

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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.",

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Vortex induced oscillations of cylinders at low and intermediate reynolds numbers. / Camassa, Roberto; Chung, Bong Jae; Howard, Philip et al.
Advances in Mathematical Fluid Mechanics: Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday. Springer Berlin Heidelberg, 2010. p. 135-145.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

TY - CHAP

T1 - Vortex induced oscillations of cylinders at low and intermediate reynolds numbers

AU - Camassa, Roberto

AU - Chung, Bong Jae

AU - Howard, Philip

AU - McLaughlin, Richard

AU - Vaidya, Ashwin

PY - 2010/12/1

Y1 - 2010/12/1

N2 - 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.

AB - 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.

KW - Autorotation

KW - Vortex Induced Oscillation

KW - Vortex Shedding

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SN - 9783642040672

SP - 135

EP - 145

BT - Advances in Mathematical Fluid Mechanics

PB - Springer Berlin Heidelberg

ER -

Vortex induced oscillations of cylinders at low and intermediate reynolds numbers

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Keywords

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