A CFD study for floating offshore wind turbine aerodynamics in turbulent wind field

Yang Zhou, Qing Xiao, Yuanchuan Liu, Atilla Incecik, Christophe Peyrard, Decheng Wan, Sunwei Li

Research output: Contribution to conferencePaper

Abstract

The present study is aimed at investigating the turbulent wind effect on FOWT through the usage of a high-fidelity computational fluid dynamics (CFD) method. This method is believed to resolve the wind field, giving us a more in-depth examination into the aerodynamics of FOWT. The work is built upon our previous studies on the modelling of a coupled aerohydro- mooring FOWT system under regular wave and uniform wind. In the present study, we replaced the previously uniform wind with a temporal and spatial variable turbulent wind field using a time-varying spectrum. The turbulent wind is generated with Mann’s wind turbulence model while the Von Karman wind spectrum is used to represent wind turbulence. The present study shows that when turbulent wind is present, there may be fluctuations of the rotor thrust and power outputs, causing the non-uniform wake region. Despite this, both the dynamic motions and the mooring tensions of the floater are not significantly influenced by the wind turbulence under the present inflow wind conditions.
Original languageEnglish
Publication statusAccepted/In press - 28 Jun 2020
EventASME 2020 3nd International Offshore Wind Technical Conference -
Duration: 14 Feb 202117 Feb 2021

Conference

ConferenceASME 2020 3nd International Offshore Wind Technical Conference
Period14/02/2117/02/21

Keywords

  • turbulent wind
  • Computational Fluid Dynamics (CFD)
  • floating offshore wind turbine (FOWT)

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  • Cite this

    Zhou, Y., Xiao, Q., Liu, Y., Incecik, A., Peyrard, C., Wan, D., & Li, S. (Accepted/In press). A CFD study for floating offshore wind turbine aerodynamics in turbulent wind field. Paper presented at ASME 2020 3nd International Offshore Wind Technical Conference, .