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Energies 2014, 7(8), 5011-5026; doi:10.3390/en7085011

Computational Fluid Dynamic Analysis of a Floating Offshore Wind Turbine Experiencing Platform Pitching Motion

1
Graduate School of Mechanical and Aerospace Engineering, Gyeongsang National University (GNU), 900 Gazwa, Jinju 660-701, Gyeongnam, Korea
2
Department of System Engineering, Korea Institute of Machinery and Materials (KIMM), Taejon 305-343, Korea
*
Author to whom correspondence should be addressed.
Received: 14 May 2014 / Revised: 25 July 2014 / Accepted: 29 July 2014 / Published: 4 August 2014
(This article belongs to the Special Issue Wind Turbines 2014)
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Abstract

The objective of this study is to illustrate the unsteady aerodynamic effects of a floating offshore wind turbine experiencing the prescribed pitching motion of a supporting floating platform as a sine function. The three-dimensional, unsteady Reynolds Averaged Navier-Stokes equations with the shear-stress transport (SST) k-ω turbulence model were applied. Moreover, an overset grid approach was used to model the rigid body motion of a wind turbine blade. The current simulation results are compared to various approaches from previous studies. The unsteady aerodynamic loads of the blade were demonstrated to change drastically with respect to the frequency and amplitude of platform motion. View Full-Text
Keywords: floating offshore wind turbine; Reynolds Averaged Navier-Stokes; dynamic mesh; overset grid approach; Fatigue, Aerodynamics, Structures, and Turbulence (FAST) floating offshore wind turbine; Reynolds Averaged Navier-Stokes; dynamic mesh; overset grid approach; Fatigue, Aerodynamics, Structures, and Turbulence (FAST)
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Tran, T.; Kim, D.; Song, J. Computational Fluid Dynamic Analysis of a Floating Offshore Wind Turbine Experiencing Platform Pitching Motion. Energies 2014, 7, 5011-5026.

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