带有尾缘襟翼的兆瓦级大型垂直轴风力机气动性能优化

doi:10.16183/j.cnki.jsjtu.2021.488

上海交通大学学报 ›› 2023, Vol. 57 ›› Issue (6): 642-652.doi: 10.16183/j.cnki.jsjtu.2021.488

所属专题：《上海交通大学学报》2023年“船舶海洋与建筑工程”专题

带有尾缘襟翼的兆瓦级大型垂直轴风力机气动性能优化

陈昊¹, 戴孟祎¹, 韩兆龙¹^,²^,³^,⁴(), 周岱¹^,²^,³, 包艳¹^,²^,³, 涂佳黄⁵

1.上海交通大学船舶海洋与建筑工程学院; 海洋工程国家重点实验室,上海 200240
2.上海交通大学水动力学教育部重点实验室,上海 200240
3.上海交通大学上海市公共建筑和基础设施数字化运维重点实验室,上海 200240
4.上海交通大学极地深海技术研究院; 海洋装备研究院,上海 200240
5.湘潭大学土木工程与力学学院,湖南湘潭 411105

收稿日期:2021-12-03 修回日期:2021-12-31 接受日期:2022-01-19 出版日期:2023-06-28 发布日期:2023-07-05
通讯作者: 韩兆龙 E-mail:han.arkey@sjtu.edu.cn.
作者简介:陈昊(1997-),硕士生,从事垂直轴风力机气动性能优化研究.
基金资助:
国家自然科学基金(52122110);国家自然科学基金(42076210);国家自然科学基金(51879160);上海市科委重大研究计划(2019-01-07-00-02-E00066);上海市曙光计划(19SG10);上海交通大学深蓝计划(SL2020PT201);上海交通大学深蓝计划(SL2021PT302);湖南省自然科学基金(2021JJ50027)

Aerodynamic Performance Optimization of MW-Level Large Vertical Axis Wind Turbine with Trailing Edge Flaps

CHEN Hao¹, DAI Mengyi¹, HAN Zhaolong¹^,²^,³^,⁴(), ZHOU Dai¹^,²^,³, BAO Yan¹^,²^,³, TU Jiahuang⁵

1. School of Naval Architecture, Ocean and Civil Engineering; State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2. Key Laboratory of Hydrodynamics of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
3. Shanghai Key Laboratory of Digital Operation and Maintenance of Public Buildings and Infrastructure, Shanghai Jiao Tong University, Shanghai 200240, China
4. Institute of Polar and;Ocean Technology; Institute of Marine Equipment, Shanghai Jiao Tong University, Shanghai 200240, China
5. College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, Hunan, China

Received:2021-12-03 Revised:2021-12-31 Accepted:2022-01-19 Online:2023-06-28 Published:2023-07-05
Contact: HAN Zhaolong E-mail:han.arkey@sjtu.edu.cn.

摘要/Abstract

摘要：

垂直轴风力机较低的风能利用率是限制其工程化应用的主要原因,为了提高其风能转化率、降低气动荷载,针对叶尖速比为2.65的中等值条件下带尾缘襟翼的大型垂直轴风力机提出了一种改进的气动性能优化模型,采用SST k-ω湍流模型进行数值模拟.研究结果表明:与原始模型相比,考虑桨距和襟翼协同运动下优化模型的功率系数可提高12.2%;此外,桨距和襟翼的协同运动可以显著减少作用在风力机整机上的推力和侧向力,与原始模型相比分别减少了12.4%和7.5%,推力和侧向力的波动幅值也要明显低于原始模型,这将有助于降低作用在风力机整机上的疲劳荷载.该模型有望在兆瓦级大型垂直轴风力机上得到应用.

关键词: 大型垂直轴风力机, 可变桨距, 可变尾缘襟翼, 数值模拟

Abstract:

Low power efficiency is a critical factor that restricts the engineering application of the vertical axis wind turbine (VAWT). In order to improve the efficiency of VAWT and reduce aerodynamic load, an improved aerodynamic performance optimization model for a large VAWT with trailing edge flaps at a medium tip speed ratio (TSR=2.65) is proposed. A numerical simulation is conducted using the SST k-ω turbulence model. The results indicate that compared with the base model, the power coefficient of the model under the synergic motion of pitch and flap can be increased by 12.2%. In addition, the synergic motion of pitch and flap can significantly reduce the thrust and lateral force on the VAWT, which are reduced by 12.4% and 7.5% respectively compared with the base model. The load fluctuation of thrust and lateral force is also significantly lower than that of the base model, which is helpful to reduce the fatigue load on wind turbine. This model is expected to be applied to MW-level VAWT.

Key words: large vertical axis wind turbine (VAWT), variable pitch, variable trailing edge flap, numerical simulation

中图分类号:

TK83

陈昊, 戴孟祎, 韩兆龙, 周岱, 包艳, 涂佳黄. 带有尾缘襟翼的兆瓦级大型垂直轴风力机气动性能优化[J]. 上海交通大学学报, 2023, 57(6): 642-652.

CHEN Hao, DAI Mengyi, HAN Zhaolong, ZHOU Dai, BAO Yan, TU Jiahuang. Aerodynamic Performance Optimization of MW-Level Large Vertical Axis Wind Turbine with Trailing Edge Flaps[J]. Journal of Shanghai Jiao Tong University, 2023, 57(6): 642-652.

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参数	取值	参数	取值
翼型	NACA 0021	展向长度,H/m	72.82
叶片数量,N	3	扫风面积,A/m²	3750.23
叶片弦长,c/m	4.29	实度,σ	0.25
旋转半径,D/m	25.75	叶尖速比,λ	2.65

带有尾缘襟翼的兆瓦级大型垂直轴风力机气动性能优化

Aerodynamic Performance Optimization of MW-Level Large Vertical Axis Wind Turbine with Trailing Edge Flaps

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