Numerical study of vortex-induced vibration of a flexible riser under offshore platform horizontal motion

Yuqi Zhang, Decheng Wan, Changhong Hu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, numerical simulation of a flexible riser is carried out at first. Results are compared with the model test to verify the validity of the solver. Then, cases with different KC number with the same motion amplitudes are simulated to explain the effect of KC number in the VIV of the riser in the oscillatory flow. Typical characteristics of the vibration are observed including the modal transition and the “build-up-lock-in-die-out” process. Finally, through wavelet analysis, it was found that the main control modes at different positions were in three states when KC number was 84 and 168.

Original languageEnglish
Title of host publication30th International Ocean and Polar Engineering Conference
PublisherInternational Society of Offshore and Polar Engineers
Pages2555-2562
Number of pages8
ISBN (Electronic)9781880653845
Publication statusPublished - 2020
Event30th International Ocean and Polar Engineering Conference, ISOPE 2020 - Virtual, Online
Duration: Oct 11 2020Oct 16 2020

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2020-October
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference30th International Ocean and Polar Engineering Conference, ISOPE 2020
CityVirtual, Online
Period10/11/2010/16/20

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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