Vortex induced vibration energy extraction modeling via forced versus free vibration

Aya Aihara, Bahri Uzunoglu

研究成果: Conference contribution

1 被引用数 (Scopus)


Vortex induced vibrations (VIV) for energy extraction have been revisited in last years by both marine power and wind power communities. Even though vortex induced vibrations have been focus of research for many years, energy extraction from vortex induced vibrations is relevantly new field which needs more detailed investigation and modeling. To this end, there has been recent experimental and modeling parametric studies where VIV was modeled by solution of one-degree-of-freedom ordinary differential equation spring system where engineering modeling of vortex induced vibration for energy extraction has been investigated based on a spring system with the forces defined from forced oscillation experiments where full coupling of free oscillations were not taken into account. Herein a Computational Fluid Dynamics (CFD) modeling of a circular cylinder will be studied to compare forced and free vibrations in the context of vortex-induced energy extraction. The model is essentially solved by partial differential isothermal incompressible Navier-Stokes equations to model fully mathematical model of the fluid-structure interaction of vortex induced vibration. The comparison between forced and free oscillation response studies of this paper will serve to improve the scientific knowledge where vortex induced vibration modeling are comparatively more limited. The preliminary results are presented herein for forced and free oscillations for the Reynolds number regimes Re = 100 and Re = 3800 in two dimensions for combinations of amplitudes and frequency of oscillations in the context of energy extraction modeling.

ホスト出版物のタイトルOCEANS 2017 - Aberdeen
出版社Institute of Electrical and Electronics Engineers Inc.
出版ステータスPublished - 2017 10月 25
イベントOCEANS 2017 - Aberdeen - Aberdeen, United Kingdom
継続期間: 2017 6月 192017 6月 22


名前OCEANS 2017 - Aberdeen


OtherOCEANS 2017 - Aberdeen
国/地域United Kingdom

ASJC Scopus subject areas

  • 器械工学
  • コンピュータ ネットワークおよび通信
  • 海洋学
  • 音響学および超音波学
  • 自動車工学


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