NUMERICAL RESEARCH ON EXTREME WAVE LOADS ON HIGH PLATFORM PILE FOUNDATION OF OFFSHORE WIND TURBINES

Hu Jinpeng; Li Zhenglin; Chen Yuanming; Hong Bo; Zhang Yunqiu

doi:10.19912/j.0254-0096.tynxb.2023-1851

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (3) : 589-594. DOI: 10.19912/j.0254-0096.tynxb.2023-1851

NUMERICAL RESEARCH ON EXTREME WAVE LOADS ON HIGH PLATFORM PILE FOUNDATION OF OFFSHORE WIND TURBINES

Hu Jinpeng¹, Li Zhenglin^2,3, Chen Yuanming⁴, Hong Bo⁴, Zhang Yunqiu¹

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Abstract

Extreme waves represented by abnormal waves have a potential threat to the safety of offshore wind turbine foundation. This article will focus on the high platform pile foundation of a 3 MW offshore wind turbine in the Donghai Bridge offshore wind power demonstration project, and firstly FLUENT software is used to establish the interaction model between regular waves and the pile foundation of offshore wind turbines with high bearing platforms, and the numerical simulation results are compared and verified with existing experimental results to verify the reliability of the numerical simulation results. Then, abnormal waves are used as incident wave conditions to simulate their impact on the pile foundation of high bearing platforms and compared with the impact results of regular waves to compare the differences and similarities between the two incident wave conditions. Results show that the wave loads obtained by the numerical simulation method are much closer to the laboratory results than those from the MORISON method. For the same experimental cases, the errors of numerical simulations are up to 39% smaller than those of the relevant technical specifications, and this indicates that the numerical simulation method is more applicable. For the same scale conditions, the wave peak loads generated by abnormal waves can reach 2.2 times the regular wave forces, so the coastal engineering structures without fully considering the extreme wave load will be more dangerous.

Key words

offshore wind turbines / extreme waves / abnormal waves / wave loads / high platform pile foundation

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Hu Jinpeng, Li Zhenglin, Chen Yuanming, Hong Bo, Zhang Yunqiu. NUMERICAL RESEARCH ON EXTREME WAVE LOADS ON HIGH PLATFORM PILE FOUNDATION OF OFFSHORE WIND TURBINES[J]. Acta Energiae Solaris Sinica. 2025, 46(3): 589-594 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1851

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