考虑流固耦合效应的单桩式海上风电机组结构响应模拟  

Fluid-structure coupling numerical method for the whole operation process of single pile foundation offshore wind power

作　　者：乐可定 郁冶 赵兰浩[3] 牟凯龙 LE Keding;YU Ye;ZHAO Lanhao;MU Kailong(Zhejiang Zheneng Guodiantou Shengsi Offshore Wind Power Generation Co.,Ltd.,Zhoushan 316000,China;State Power Investment Group Zhejiang New Energy Co.,Ltd.,Hangzhou 310016,China;College of Water Conservancy and Hydropower,Hohai University,Nanjing 210098,China)

机构地区：[1]浙江浙能国电投嵊泗海上风力发电有限公司,浙江舟山316000 [2]国家电投集团浙江新能源有限公司,浙江杭州310016 [3]河海大学水利水电学院,江苏南京210098

出　　处：《海洋工程》2023年第5期37-47,共11页The Ocean Engineering

基　　金：国家自然科学基金资助项目(52009034)。

摘　　要：针对海上风电整机系统,建立了一体化流固耦合分析方法。在模拟过程中,采用浸入边界法解决风机叶片旋转引起的静动干涉问题,利用改进的守恒式level set(简称ICLS)方法捕捉海浪自由面,并使用交错迭代法求解流固耦合方程。通过构建“风机—塔架—基础”一体化流固耦合数值模拟方法,能够在一次仿真计算中实现海上风电整机系统的全过程数值模拟,准确求解多荷载耦合作用下“风机—塔架—基础”的整体结构动力响应。以某单桩式海上风电工程为例,验证了本方法能够实现对海上风电整体系统的一体化分析。The method of integrated fluid-structure coupling is presented for integrated analysis of offshore wind power.To address the static and dynamic interference caused by the rotation of turbine blades,the immersed boundary method is employed,while the free surfaces of sea waves are captured by the improved conservative level set method(ICLS).The fluid structure coupling equation is solved using the staggered iterative method,and the method for the integrated analysis of the turbine-tower-foundation of offshore wind turbines is presented.In a single calculation,the present method enables the simulation of the entire operation process of offshore wind turbines,accurately solving the overall structural dynamic response under multi-load coupling.The effectiveness of the method is demonstrated through a single pile foundation offshore wind power project example,indicating that the integrated analysis of the overall offshore wind power system can be achieved using this approach.

关 键 词：海上风电 流固耦合 运行全过程 ICLS 单桩基础 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]