空气动力学
垂直轴风力涡轮机
涡轮机
风力发电
海洋工程
环境科学
航空航天工程
声学
工程类
物理
电气工程
作者
Jie Su,Yu Li,Yaoran Chen,Zhaolong Han,Dai Zhou,Yongsheng Zhao,Yan Bao
出处
期刊:Energy
[Elsevier]
日期:2021-06-01
卷期号:225: 120202-120202
被引量:7
标识
DOI:10.1016/j.energy.2021.120202
摘要
The floating vertical axis wind turbine (VAWT) is considered as a competitive device in the utilization of offshore wind energy. However, the platform pitch motion would affect its aerodynamic behavior. In this paper, the aerodynamic performance of a floating φ-type VAWT under pitch motion is investigated by using the Improved Delayed Detached Eddy Simulation SST k−ω turbulence model. After verifying the feasibility of the numerical model, the effects of pitch motion amplitude and period on the aerodynamic characteristics were evaluated, and the impacts of these observations were elucidated. The results showed that the averaged net power coefficient increment of about 1.5%–15% could be obtained under platform pitch motions, and the fluctuation of aerodynamic loads was found to increase. Besides, the pitch motion pattern could be regarded as the combination of surge and heave motions, which explained the similarity of their effects on the wind turbine aerodynamics. Furthermore, it was found that the frequency of the peak torque coefficient would change under different periods of pitch motion, which should be noticed in the design of floating wind turbine. Finally, it was concluded that the current study provided additional information about the effect of pitch motion on wind turbine aerodynamics.
科研通智能强力驱动
Strongly Powered by AbleSci AI