Modelling of coupled cross-flow and in-line vortex-induced vibrations of flexible cylindrical structures: Part II: on the importance of in-line coupling

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Abstract

To illustrate the influence of the in-line coupling on the prediction of vortex-induced vibration (VIV), the simulation results of the coupled cross-flow and in-line VIVs of flexible cylinders- obtained with three different wake oscillator models with and without the in-line coupling- are compared and studied in this paper. Both the cases of uniform and linearly sheared flow are analysed and the simulation results of the three models are compared with each other from the viewpoints of response pattern, fluid force, energy transfer and fatigue damage. The differences between the simulation results from the three models highlight the importance of the in-line coupling on the prediction of coupled cross-flow and in-line VIVs of flexible cylindrical structures.

Original languageEnglish
Pages (from-to)3083-3112
Number of pages30
JournalNonlinear Dynamics
Volume103 (2021)
Issue number4
DOIs
Publication statusPublished - 2020

Bibliographical note

Accepted author manuscript

Keywords

  • Energy transfer
  • Fatigue damage
  • In-line coupling
  • Motion trajectory
  • Vortex-induced vibration
  • Wake oscillator

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