Numerical Investigation of Effects of Turbulence Intensity on Aerodynamic Performance for Straight-Bladed Vertical-Axis Wind Turbines

被引：17
作者：
Kuang, Limin [1 ]
Lei, Hang [1 ]
Zhou, Dai [2 ]
Han, Zhaolong [3 ]
Bao, Yan [3 ]
Zhao, Yongsheng [4 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Naval Architecture, Ocean & Civil Engn, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai Key Lab Digital Maintenance Bldg & Infra, Minist Educ,Key Lab Hydrodynam,State Key Lab Ocea, Shanghai 200240, Peoples R China
[3] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, State Key Lab Ocean Engn, Shanghai Key Lab Digital Maintenance Bldg & Infra, Shanghai 200240, Peoples R China
[4] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China
来源：
JOURNAL OF ENERGY ENGINEERING | 2021年 / 147卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Vertical-axis wind turbine (VAWT); Turbulence intensity; Aerodynamic performance; Aerodynamic interaction; Improved delayed detached eddy simulation (IDDES); POWER PERFORMANCE; WAKE CHARACTERISTICS; DYNAMIC STALL; H-DARRIEUS; SIMULATION; SOLIDITY; IMPACT; INFLOW; DESIGN; NUMBER;
D O I：
10.1061/(ASCE)EY.1943-7897.0000740
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Vertical-axis wind turbines (VAWTs) may be subjected to varying degrees of turbulence in practice. In the present study, the computational fluid dynamics (CFD) method and improved delayed detached eddy simulation (IDDES) turbulence model are adopted to investigate the effects of turbulence intensity on the aerodynamic performance of single and dual straight-bladed VAWTs. The reliability of the numerical model is verified by available experiments. Then, the power performance, wake characteristics, and turbulence statistics distribution of a single VAWT under different inlet conditions are analyzed. Besides, the aerodynamic interaction between two arrayed VAWTs in the turbulent flow are explored. The results show that higher turbulence intensities could significantly improve the power coefficients of the VAWT under low and medium inflow velocities. The aerodynamic loads on the blade are enlarged by the turbulent flow, and more fluctuations occur around the rotor. The strong ambient turbulence could provide constant momentum supplement for the turbine wake and accelerate the wake recovery. Moreover, the atmospheric turbulence has a positive effect on the total power output of dual VAWTs in a tandem arrangement.
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页数：17
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