Vortex-induced vibration of two side-by-side circular cylinders of different diameters in close proximity in steady flow

  • Mehran Rahmanian
  • , Liang Cheng
  • , Ming Zhao
  • , Tongming Zhou

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

1 Citation (Scopus)

Abstract

Vortex-induced vibrations of two side-by-side cylinders of different diameters in steady incompressible flow are studied. The diameter ratio of cylinders is fixed at 0.1. The Reynolds number is fixed at 5000 based on the large cylinder diameter and free stream velocity. A Petrov-Galerkin finite element method is used to solve the two dimensional Reynolds-averaged Navier Stokes equations using the Arbitrary Lagrangian Eulerian scheme with a SST k-ω turbulence model closure. The numerical method has been validated against available experimental results. Then, the effects of natural frequencies of the cylinders on the vibration amplitude and vortex shedding regimes are investigated. It is found that for the range of considered parameters, collision of the cylinders is dependent on the difference of the natural frequencies of the cylinders.
Original languageEnglish
Title of host publicationProceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering: OMAE2012: July 1-6, 2012, Rio de Janeiro, Brazil
PublisherASME
Pages309-316
Number of pages8
ISBN (Print)9780791844915
DOIs
Publication statusPublished - 2012
EventInternational Conference on Ocean_Offshore and Arctic Engineering -
Duration: 1 Jul 2012 → …

Conference

ConferenceInternational Conference on Ocean_Offshore and Arctic Engineering
Period1/07/12 → …

Keywords

  • Navier-Stokes equations
  • Petrov-Galerkin finite element method
  • cylinders
  • finite element method
  • natural frequencies
  • vibrations
  • vortex-induced vibrations

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