Vortex induced oscillations of cylinders at low and intermediate reynolds numbers

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

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

6 Citations (Scopus)

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 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
Pages135-145
Number of pages11
ISBN (Print)9783642040672
DOIs
StatePublished - 1 Dec 2010

Fingerprint

Reynolds number
Vortex
Oscillation
Flow Visualization
Vortex Shedding
Wake
Incompressible Flow
Tunnel
Inertia
Bubble
Phase Diagram
Hydrogen
Water
Range of data

Keywords

  • Autorotation
  • Vortex Induced Oscillation
  • Vortex Shedding

Cite this

Camassa, R., Chung, B. J., Howard, P., McLaughlin, R., & Vaidya, A. (2010). Vortex induced oscillations of cylinders at low and intermediate reynolds numbers. In Advances in Mathematical Fluid Mechanics: Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday (pp. 135-145). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-04068-9_8
Camassa, Roberto ; Chung, Bong Jae ; Howard, Philip ; McLaughlin, Richard ; Vaidya, Ashuwin. / Vortex induced oscillations of cylinders at low and intermediate reynolds numbers. Advances in Mathematical Fluid Mechanics: Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday. Springer Berlin Heidelberg, 2010. pp. 135-145
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Camassa, R, Chung, BJ, Howard, P, McLaughlin, R & Vaidya, A 2010, Vortex induced oscillations of cylinders at low and intermediate reynolds numbers. in Advances in Mathematical Fluid Mechanics: Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday. Springer Berlin Heidelberg, pp. 135-145. https://doi.org/10.1007/978-3-642-04068-9_8

Vortex induced oscillations of cylinders at low and intermediate reynolds numbers. / Camassa, Roberto; Chung, Bong Jae; Howard, Philip; McLaughlin, Richard; Vaidya, Ashuwin.

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 proceedingChapterResearchpeer-review

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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

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Camassa R, Chung BJ, Howard P, McLaughlin R, Vaidya A. Vortex induced oscillations of cylinders at low and intermediate reynolds numbers. In Advances in Mathematical Fluid Mechanics: Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday. Springer Berlin Heidelberg. 2010. p. 135-145 https://doi.org/10.1007/978-3-642-04068-9_8