风浪流联合作用下海上风电单桩基础荷载数值模拟研究

Study on Loads on Single Pile Wind Turbine Foundation under Combined Action of Wind,Wave and Current

我国海洋风能资源丰富,海上风机受到风、浪和流等复杂环境荷载,对风机设计和运维起着重要作用。该文基于开源流体力学软件Open FOAM求解器olaFlow,采用k-ωSST湍流模型,建立风、浪和流联合的海上风机荷载计算数值模型。对不同水位条件下,如东海上风电单桩基础受到的风荷载、波流荷载和风-浪-流联合荷载进行计算,并与经验公式进行对比分析。结果表明,该模型与经验公式结果具有良好的一致性。

Marine wind energy resources are rich in China,so offshore wind turbines are widely used for the wind power generation.The offshore wind turbine is subjected to many loads,such as wind,wave and current.Considering the safety and stability,it is necessary to study the loads of the turbine foundation.Based on the standard solver olaFlow of OpenFOAM software,k-ωSST turbulence model is used to established the numerical model of wind-wave-current forces on the wind turbines.Under the various water level,the wind loads,the wave-current loads and the coupling of wind-wave-current loads on the turbine foundation in RuDong are studied.Furthermore,comparison with the empirical formula,the numerical results show that the model is in good agreement with the empirical formula.