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中南大学学报(自然科学版)

Journal of Central South University

第51卷    第9期    总第313期    2020年9月

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文章编号:1672-7207(2020)09-2634-09
涡流发生器布置位置对小型垂直轴风力机气动性能的影响
张立军,朱怀宝,胡阔亮,顾嘉伟,缪俊杰,江奕佳,李想,于洪栋,刘静

(中国石油大学(华东)机电工程学院,山东 青岛,266580)

摘 要: 为提高垂直轴风力机的气动性能,针对小型双叶片H型垂直轴风力机,提出3种涡流发生器在叶片表面安装位置方案。建立风力机整机仿真模型并进行了网格独立性验证。利用ANYSY FLUENT软件对垂直轴风力机进行三维流体力学仿真研究。研究结果表明:在上风区叶片内表面和下风区叶片外表面加装涡流发生器均可提高叶片的转矩系数,但分析流场显示下风区流场紊乱,下风区叶片外表面加装涡流发生器提升效果变差。3种方案中,叶片内外表面加装涡流发生器时垂直轴风力机风能利用率CP提升效果最好,与原型风力机相比CP提升6.4%。

 

关键字: 垂直轴风力机(VAWT);涡流发生器(VG);布置位置;气动性能;FLUENT软件

Effect of arrangement position of vortex generator on aerodynamic performance of small vertical axis wind turbine
ZHANG Lijun, ZHU Huaibao, HU Kuoliang, GU Jiawei, MIAO Junjie, JIANG Yijia, LI Xiang, YU Hongdong, LIU Jing

College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, China

Abstract:In order to improve the aerodynamic performance of VAWT, for a small double-blade H-type vertical axis wind turbine, three kinds of arrangement position schemes of vortex generator on the blade surface were proposed. The simulation model was established for the wind turbine, and the grid independence was verified. By using ANYSY FLUENT software, three-dimensional hydrodynamic simulations of conventional airfoils were performed. The results show that the blade torque coefficient can be improved by adding vortex generators on the inner surface of the upwind zone and the outer surface of the downwind zone, but the analysis of the flow field shows that the flow field in the downwind zone is disordered, and the lifting effect of vortex generator installed on the outer surface of the blade in the downwind area becomes worse. Among the three schemes, when the vortex generator is installed on the inner and outer surface of the blade, the wind energy utilization ratio CP of the vertical axis wind turbine is the best, and the wind energy utilization ratio is increased by 6.4% compared with CP of the original wind turbines.

 

Key words: vertical axis wind turbine(VAWT); vortex generator(VG); arrangement position; aerodynamic performance; FLUENT software

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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