Aeroelastic analysis of a 5 MW offshore wind turbine based on actuator line method

LENG Jun; GAO Zhiteng; ZHENG Xiaobo; LI Ye

doi:10.7638/kqdlxxb-2022.0048

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Aeroelastic analysis of a 5 MW offshore wind turbine based on actuator line method

更新时间：2026-05-28

- Aeroelastic analysis of a 5 MW offshore wind turbine based on actuator line method
- Vol. 40, Issue 4, Pages: 203-209(2022)
- 作者机构：
  
  1. 上海交通大学船舶海洋与建筑工程学院,上海,200240
  2. 上海交通大学多功能拖曳水池实验室,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2022.0048
  CLC： TM315;V415.3
- Published：2022
- 稿件说明：
移动端阅览
冷峻, 郜志腾, 郑小波, 等. 基于致动线方法的5 MW海上风力机气动弹性分析[J]. 空气动力学学报, 2022, 40(4): 203−209.

LENG Jun, GAO Zhiteng, ZHENG Xiaobo, et al. Aeroelastic analysis of a 5 MW offshore wind turbine based on actuator line method[J]. 2022, 40(4): 203-209.
冷峻, 郜志腾, 郑小波, 等. 基于致动线方法的5 MW海上风力机气动弹性分析[J]. 空气动力学学报, 2022, 40(4): 203−209. DOI： 10.7638/kqdlxxb-2022.0048

LENG Jun, GAO Zhiteng, ZHENG Xiaobo, et al. Aeroelastic analysis of a 5 MW offshore wind turbine based on actuator line method[J]. 2022, 40(4): 203-209. DOI： 10.7638/kqdlxxb-2022.0048.

摘要

随着风力机功率的不断增大以及新型复合材料的应用，叶片的柔性和几何非线性变形成为风力机设计中不可忽略的因素，结构和气动弹性的分析也随之变得更加复杂。然而，风能行业中传统的叶片分析方法无法准确预测现代复杂叶片的气动弹性特性，从而导致风力机性能预测出现较大误差。本文基于柔性多体动力学，建立了一种新型双向流固耦合模型，在结合致动线方法和大涡模拟的基础上，考虑了结构和气动弹性对风力机性能的影响，可用于动态结构载荷预测及流固耦合分析。对5 MW基准风力机进行建模，验证了计算模型的准确性，并讨论了叶片的瞬时结构响应，分析了叶片变形对风力机功率、尾迹的影响。研究结果表明，叶片的柔性在风力机气动弹性设计中不可忽略，同时本文模型可以准确捕捉风力机的尾迹结构（包括叶尖涡和叶根涡），更适用于现代兆瓦级复合材料风力机气动弹性和尾迹分析。

Abstract

With the increasing power of wind turbines and the application of new composite materials

the flexibility and geometrically nonlinear deformation of blades have become important parts in wind turbine design. As a consequence

the structural analysis becomes more complex and thus their aeroelasticity accordingly. However

traditional blade analysis methods in the wind energy industry cannot predict the aeroelastic behavior of these modern complicated blades

which leads to an inaccurate estimation of the turbine performance. Based on the flexible multi-body dynamics

a new two-way fluid-structure coupling analysis method is established in the present study. The model retains the traditional actuator line model and considers the influence of aeroelasticity on the performance of the rotor. This work verifies the accuracy of the model through a 5 MW baseline wind turbine

investigates the transient structural response of the blade

and analyzes the influence of blade deformation on the rotor power and wake. The results show that the flexibility of blades cannot be ignored in the aeroelastic design of wind turbines. Moreover

the model can accurately capture the wake structure of the rotor

including the blade tip and blade root vortices

which is more suitable for the aeroelastic and wake analysis of modern megawatt-level composite wind turbines.

关键词

Keywords

references

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