Numerical analysis of vortex-induced vibrations of a slender flexible riser under platform motions

Hao Hu, Di Deng, Decheng Wan, Changhong Hu

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

With influence of current, the platform and the connected riser form relative motion in the flow. In this paper, A computational fluid dynamics (CFD) model is built by strip theory and Bernoulli–Euler bending beam model. Based on this numerical model, the platform motions and corresponding current velocities are employed to investigate the responses of the riser. The numerical results indicate that the dominant crossflow and inline vibration modes are increased with the current velocity. The amplitudes of crossflow and inline vibration modes show periodic variations with the increase in the amplitude of the surge motion and the current velocity. The similar vortex shedding mode in the uniform flow is observed during vortex-induced vibrations of riser under the low frequency platform motions.

本文言語英語
ホスト出版物のタイトルProceedings of the 31st International Ocean and Polar Engineering Conference, ISOPE 2021
出版社International Society of Offshore and Polar Engineers
ページ2015-2020
ページ数6
ISBN(印刷版)9781880653821
出版ステータス出版済み - 2021
イベント31st International Ocean and Polar Engineering Conference, ISOPE 2021 - Virtual, Online
継続期間: 6 20 20216 25 2021

出版物シリーズ

名前Proceedings of the International Offshore and Polar Engineering Conference
ISSN(印刷版)1098-6189
ISSN(電子版)1555-1792

会議

会議31st International Ocean and Polar Engineering Conference, ISOPE 2021
CityVirtual, Online
Period6/20/216/25/21

All Science Journal Classification (ASJC) codes

  • エネルギー工学および電力技術
  • 海洋工学
  • 機械工学

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