Quantitative impact of combining blowing and suction flow control on a floating offshore wind turbine aerodynamic performance under the surge motion

IF 9 1区工程技术 Q1 ENERGY & FUELS

Renewable Energy Pub Date : 2024-11-20 DOI:10.1016/j.renene.2024.121945

Yukun Sun , Yaoru Qian , Tongguang Wang , Long Wang , Chengyong Zhu , Yang Gao

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引用次数: 0

Abstract

The dynamic stall induced by platform surge motion significantly reduces the output power of a floating wind turbine and shortens the machine's operational lifespan. This work examines the impact of a D-SFJ active flow control, featuring two suction slots on the suction side and two injection slots near the trailing edge on the pressure side, on the aerodynamic performance of the NREL 5 MW reference wind turbine during surge motion. Numerical simulations are conducted using the Unsteady Reynolds-Averaged Navier-Stokes (URANS) method with the shear stress transport (SST) k-ω turbulence model and the overset mesh technique is performed. The findings confirm that the surge motion dynamically enlarges the flow separation region over the blade surface, with a maximum increase of 164.29 % in comparison to the wind turbine in a fixed state. The control device implemented in the entire rotor can enhance the aerodynamic performance and improve the flow pattern throughout a single surge cycle. For instance, at an inflow of 7 m/s and a jet strength of 0.01, the D-SFJ device yields a 4.82 % increase in average net output power and the separation area can be reduced by 54.68％ compared to the baseline rotor.

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结合吹流和吸流控制对浪涌运动下浮式海上风力涡轮机气动性能的定量影响

平台浪涌运动引起的动态失速会大大降低浮动风力涡轮机的输出功率，缩短机器的运行寿命。本研究探讨了 D-SFJ 主动流控制对 NREL 5 兆瓦参考风力涡轮机在浪涌运动时空气动力性能的影响，D-SFJ 主动流控制的特点是在吸气侧有两个吸气槽，在压力侧靠近后缘处有两个喷气槽。采用非稳态雷诺平均纳维-斯托克斯（URANS）方法和剪应力传输（SST）k-ω 湍流模型进行了数值模拟，并采用了超集网格技术。研究结果证实，激波运动动态扩大了叶片表面的流动分离区域，与处于固定状态的风机相比，最大增幅达 164.29%。在整个转子上安装的控制装置可以提高气动性能，并在单个激波周期内改善流动模式。例如，在流量为 7 米/秒、喷流强度为 0.01 的情况下，D-SFJ 装置的平均净输出功率增加了 4.82%，与基准转子相比，分离面积减少了 54.68%。

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来源期刊

Renewable Energy 工程技术-能源与燃料

CiteScore

18.40

自引率

9.20%

发文量

1955

审稿时长

6.6 months

期刊介绍： Renewable Energy journal is dedicated to advancing knowledge and disseminating insights on various topics and technologies within renewable energy systems and components. Our mission is to support researchers, engineers, economists, manufacturers, NGOs, associations, and societies in staying updated on new developments in their respective fields and applying alternative energy solutions to current practices. As an international, multidisciplinary journal in renewable energy engineering and research, we strive to be a premier peer-reviewed platform and a trusted source of original research and reviews in the field of renewable energy. Join us in our endeavor to drive innovation and progress in sustainable energy solutions.