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

Energies

Thanhtoan Tran¹  Donghyun Kim¹ 

[1] Graduate School of Mechanical and Aerospace Engineering, Gyeongsang National University (GNU), 900 Gazwa, Jinju 660-701, Gyeongnam, Korea; E-Mail:

关键词: floating offshore wind turbine;    Reynolds Averaged Navier-Stokes;    dynamic mesh;    overset grid approach;    Fatigue;    Aerodynamics;    Structures;    and Turbulence (FAST);   

DOI  :  10.3390/en7085011

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.