发电技术 ›› 2023, Vol. 44 ›› Issue (1): 44-52.DOI: 10.12096/j.2096-4528.pgt.22015

• 新能源 • 上一篇    下一篇

基于浸入边界法的海上风电双向流固耦合数值模拟方法

吴荣辉1, 刘冬2, 郁冶3, 牟凯龙4, 赵兰浩4   

  1. 1.浙江省新能源投资集团股份有限公司,浙江省 杭州市 310016
    2.浙江浙能国电投嵊泗海上风力发电有限公司,浙江省 舟山市 316000
    3.国家电投集团浙江新能源有限公司,浙江省 杭州市 310016
    4.河海大学水利水电学院,江苏省 南京市 210098
  • 收稿日期:2022-01-21 出版日期:2023-02-28 发布日期:2023-03-02
  • 作者简介:吴荣辉(1963),男,高级工程师,研究方向为新能源技术与应用,41863966@qq.com
    赵兰浩(1980),男,博士,教授,研究方向为流固耦合问题数值模拟和水工结构抗震分析,本文通信作者,zhaolanhao@hhu.edu.cn
  • 基金资助:
    国家自然科学基金项目(52009034)

Two-Way Fluid-Structure Interaction Numerical Simulation Method for Offshore Wind Power Based on Immersed Boundary Method

Ronghui WU1, Dong LIU2, Ye YU3, Kailong MU4, Lanhao ZHAO4   

  1. 1.Zhejiang Provincial New Energy Investment Group Co. , Ltd. , Hangzhou 310016, Zhejiang Province, China
    2.Zhejiang Zheneng Guodiantou Shengsi Offshore Wind Power Generation Co. , Ltd. , Zhoushan 316000, Zhejiang Province, China
    3.State Power Investment Group Zhejiang New Energy Co. , Ltd. , Hangzhou 310016, Zhejiang Province, China
    4.College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, Jiangsu Province, China
  • Received:2022-01-21 Published:2023-02-28 Online:2023-03-02
  • Supported by:
    National Natural Science Foundation of China(52009034)

摘要:

为研究海上风电机组在运行过程中的流场特性及流固耦合动力响应,引入海上风电机组整机系统一体化分析理念,提出基于浸入边界法的海上风电双向流固耦合运行过程模拟方法。其中,采用浸入边界法模拟了风机旋转引起的静动干涉问题,基于交错迭代法构建了适用于风电机组“风机-塔架-基础”一体化研究的双向流固耦合数值模拟方法。该方法能够真实反映海上风电机组的流固耦合效应,准确求解其动力响应。所采用的浸入边界法无需更新网格运动,能够高效求解风电机组叶片旋转引起的静动干涉问题。最后,将该方法应用于工程实践,模拟了某海上风电工程双向流固耦合运行全过程。

关键词: 海上风电, 双向流固耦合, 浸入边界法, 数值模拟

Abstract:

In order to study the flow field characteristics and dynamic fluid-structure interaction response of offshore wind turbine during operation process, the concept of integrated analysis of offshore wind power project was introduced and the simulation method for the integrated fluid-structure interaction operation process of offshore wind power was established based on the immersed boundary method. The stator-rotor interaction caused by the rotation of the fan was simulated by the immersed boundary method. With the alternating iteration method, a two-way fluid-structure interaction numerical method for the integrated research of offshore wind turbines “fan-tower-foundation” was presented. With the proposed method, the fluid-solid interaction effect of offshore wind turbine can be truly reflected and its dynamic response can be accurately solved. The immersed boundary method can effectively solve the stator-rotor interaction caused by fan rotation without updating the grid motion. Finally, the integrated fluid-structure interaction operation process of an offshore wind power project was simulated.

Key words: offshore wind power, two-way fluid-structure interaction, immersed boundary method, numerical simulation

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