对转式垂直轴风力机气动性能研究

doi:10.16183/j.cnki.jsjtu.2019.360

上海交通大学学报 ›› 2021, Vol. 55 ›› Issue (2): 141-148.doi: 10.16183/j.cnki.jsjtu.2019.360

所属专题：《上海交通大学学报》2021年12期专题汇总专辑；《上海交通大学学报》2021年“工程力学”专题

对转式垂直轴风力机气动性能研究

曹宇^a, 韩兆龙^a^,^b, 周岱^a^,^b^,^c(), 雷航^a

^a.上海交通大学　船舶海洋与建筑工程学院
^b.上海交通大学　海洋工程国家重点实验室上海
^c.上海交通大学　高新船舶与深海开发装备协同创新中心，上海　200240

收稿日期:2019-12-12 出版日期:2021-02-01 发布日期:2021-03-03
通讯作者: 周岱 E-mail:zhoudai@sjtu.edu.cn
作者简介:曹宇(1996-)，男，江苏省盐城市人，硕士生，主要研究方向为海上风力机气动性能研究．
基金资助:
国家自然科学基金项目(11772193);上海市教委科研创新计划项目(2019-01-07-00-02-E00066);上海市自然科学基金项目(18ZR1418000);上海交通大学新引进人员科研启动基金项目(WF220401005);上海高校特聘教授（东方学者）岗位计划(ZXDF010037);上海市国际科技合作基金项目(18290710600)

Aerodynamic Performance of Counter-Rotating Vertical Axis Wind Turbine

CAO Yu^a, HAN Zhaolong^a^,^b, ZHOU Dai^a^,^b^,^c(), LEI Hang^a

^a.School of Naval Architecture, Ocean and Civil Engineering
^b.State Key Laboratory of Ocean Engineering
^c.Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2019-12-12 Online:2021-02-01 Published:2021-03-03
Contact: ZHOU Dai E-mail:zhoudai@sjtu.edu.cn

摘要/Abstract

摘要：

为了改进漂浮独立式垂直轴风力机的气动和稳定性能，提出风力机的新型结构设计理念，即同轴对转式垂直轴风力机．基于计算流体力学理论，借助雷诺时均剪切应力传输RANS SST k-ω湍流模型对风力机进行数值模拟，并结合涡流理论，比较对转式与独立式垂直轴风力机在不同叶尖速比(TSR)时的气动和稳定性能．结果表明，相同流场条件下，对转式风力机浮式平台的稳定性更强．当TSR<1.3时，长时间的失速状态使得对转式风力机的脱涡现象更严重，风能利用效率更低；当TSR>1.3时，外流场的风能更多地被对转式风力机转子吸收，风力机的远端涡流长度更短且脱涡强度更低，风能利用效率更高．同轴对转式的结构设计理念和分析方法对海上垂直轴风力机的性能优化有一定的参考价值.

关键词: 对转式垂直轴风力机, 数值模拟, 气动性能, 稳定性能, 涡流理论

Abstract:

In order to improve the aerodynamic performance and stability of the floating platform of an isolated vertical axis wind turbine, a novel structure design concept of the wind turbine with a coaxial counter-rotating vertical axis was proposed. Based on the computational fluid dynamics theory, a numerical simulation was conducted with the application of the Reynolds-averaged Navier-Stokes (RANS) shear stress transfer (SST) k-ω turbulence model, and combined with the eddy current theory, the aerodynamic performance and stability with different tip speed ratios (TSR) were further compared. The results show that in the same flow field, the floating platform of the counter-rotating wind turbine is more stable. When TSR<1.3, the long-time stall makes the de-vortex of the counter-rotating wind turbine more serious, and the wind energy utilization efficiency is lower. When TSR>1.3, the wind energy in outflow field is more absorbed by the rotor of the counter-rotating wind turbine. In addition, the length of remote vortex is shorter and the intensity is lower. Therefore, the wind energy utilization efficiency is higher. Coaxial counter-rotating has a certain reference value for the performance optimization of the vertical axis wind turbine.

Key words: counter-rotating vertical axis wind turbine, numerical simulation, aerodynamic performance, stability, vortex theory

中图分类号:

O352

曹宇, 韩兆龙, 周岱, 雷航. 对转式垂直轴风力机气动性能研究[J]. 上海交通大学学报, 2021, 55(2): 141-148.

CAO Yu, HAN Zhaolong, ZHOU Dai, LEI Hang. Aerodynamic Performance of Counter-Rotating Vertical Axis Wind Turbine[J]. Journal of Shanghai Jiao Tong University, 2021, 55(2): 141-148.

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网格类型	网格基础尺寸/m	网格最小尺寸/m	总网格数	C_p			y⁺
网格类型	网格基础尺寸/m	网格最小尺寸/m	总网格数	数值模拟	风洞试验	相对误差/%	y⁺
粗糙	0.010	0.004	2 976 672	0.126	0.176	28.35	1.360 7
中等	0.010	0.002	4 027 823	0.180	0.176	2.46	0.683 5
精细	0.005	0.001	5 494 114	0.176	0.176	—	0.294 7

对转式垂直轴风力机气动性能研究

Aerodynamic Performance of Counter-Rotating Vertical Axis Wind Turbine

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