Effect of Turbulence Intensity on Aerodynamic Loads of Floating Wind Turbine under Wind–Wave Coupling Effect

Wenxin Tian, Qiang Shi, Lidong Zhang, Hehe Ren (), Hongfa Yu, Yibing Chen, Zhengcong Feng and Yuan Bai
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Wenxin Tian: Department of Airport and Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Qiang Shi: School of Energy and Power Engineering, Northeast Electric Power University, 169 Changchun Road, Chuanying District, Jilin 132012, China
Lidong Zhang: School of Energy and Power Engineering, Northeast Electric Power University, 169 Changchun Road, Chuanying District, Jilin 132012, China
Hehe Ren: Department of Airport and Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Hongfa Yu: Department of Airport and Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Yibing Chen: School of Energy and Power Engineering, Northeast Electric Power University, 169 Changchun Road, Chuanying District, Jilin 132012, China
Zhengcong Feng: School of Energy and Power Engineering, Northeast Electric Power University, 169 Changchun Road, Chuanying District, Jilin 132012, China
Yuan Bai: State Key Laboratory of Low-Carbon Smart Coal-Fired Power Generation and Ultra-Clean Emission, China Energy Science and Technology Research Institute Co., Ltd., Nanjing 210023, China

Sustainability, 2024, vol. 16, issue 7, 1-17

Abstract: This study first employs TurbSim and OpenFAST (Fatigue, Aerodynamics, Structures, Turbulence) programs for secondary development to comprehensively model the NREL-5MW semi-submersible wind turbine and OC4-DeepC wind floating platform with wind–wave interaction. Next, we investigate the dynamic response of floating wind turbines under the complex coupling of turbulent winds and irregular waves. Turbulent wind fields were simulated using the IEC Kaimal model with turbulence intensities of 5% and 20%. Additionally, two irregular waves were simulated with the Pierson–Moskowitz (P–M) spectrum. The results indicate that in turbulent wind conditions, the aerodynamic power of the wind turbine and the root bending moments of the blades are significantly influenced by turbulence, while the impact of waves is minimal. The coupled motion response of the floating platform demonstrates that turbulence intensity has the greatest impact on the platform’s heave and pitch motions, underscoring the importance of turbulence in platform stability. This study provides essential insights for designing and optimizing floating wind turbines in complex wind–wave coupling offshore environments.

Keywords: floating wind turbine; turbulent wind; aerodynamic load; platform motion response (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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