Numerical simulation of multi-modal vortex-induced vibration of a 3D flexible circular cylinder

Enhao Wang, Qing Xiao, Wendi Liu

Research output: Contribution to conferenceProceeding

Abstract

Vortex-induced vibration of a 3D flexible circular cylinder at a constant Reynolds number Re = 1000 is numerically investigated using a fully coupled Computational Fluid Dynamics (CFD) and Computational Structural Dynamics (CSD) method. The dynamic response of a flexible cylinder with fixed ends is modelled by the Euler-Bernoulli beam theory. Simulation results show that by increasing the reduced velocity, different vibration modes (up to the 5th mode) are excited. The flow visualization results suggest that 2S wake mode is observed at all span-wise planes. Depending on the vibration amplitude, the vortex shedding mode can be either AS mode or SS mode.
Original languageEnglish
Number of pages7
Publication statusPublished - Jul 2014
EventICMT 2014 - University of Strathclyde, Glasgow, United Kingdom
Duration: 7 Jul 20149 Jul 2014
http://www.icname.org/show.asp?id=28

Conference

ConferenceICMT 2014
Abbreviated titleICMT 2014
CountryUnited Kingdom
CityGlasgow
Period7/07/149/07/14
Internet address

Keywords

  • vibration
  • 3D flexible circular cylinder
  • numerical simulation
  • multi modal
  • vortex induced vibration

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