FSI analysis of deformation along offshore pile structure for tidal current power

Chul-Hee Jo, Do-Youb Kim, Yu-Ho Rho, Kang-Hee Lee, Cameron Johnstone

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Abstract

Due to global warming, the need to secure an alternative clean energy resource has become an international issue. Tidal current power is now recognized as one of the clean power resources in Korea, where there are many strong current regions on the west and south coasts. Recently, large scale tidal
devices have been deployed with a maximum rotor diameter of 18 m. These devices impose significant loading on supporting structures. In many cases, a pile fixed foundation is used to secure the structure. However, due to the high density of seawater, the drag and lift forces are much larger than in air, causing
extensive stress and deflection to the pile tower structure. In this study, a numerical analysis of the hydro-forces from a rotating tidal current turbine to a tower was conducted to determine the deformation distribution along the pile tower.
Original languageEnglish
Pages (from-to)248-252
Number of pages5
JournalRenewable Energy
Volume54
DOIs
Publication statusPublished - Jun 2013

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Keywords

  • Tidal Current Power (TCP)
  • renewable energy
  • Horizontal Axis Turbine (HAT)
  • finite element method
  • computational fluid dynamics
  • fluid-structure interaction

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