期刊
ENERGIES
卷 13, 期 23, 页码 -出版社
MDPI
DOI: 10.3390/en13236281
关键词
vertical axis wind turbine; actuator line model; flow characteristics; pitch regulation
资金
- National Natural Science Foundation of China [51875305]
Currently, vertical axis wind turbines (VAWT) are considered as an alternative technology to horizontal axis wind turbines in specific wind conditions, such as offshore farms. However, complex unsteady wake structures of VAWTs exert a significant influence on performance of wind turbines and wind farms. In the present study, instantaneous flow fields around and downstream of an innovative VAWT with inclined pitch axes are simulated by an actuator line model. Unsteady flow characteristics around the wind turbine with variations of azimuthal angles are discussed. Several fluid parameters are then evaluated on horizontal and vertical planes under conditions of various fold angles and incline angles. Results show that the total estimated wind energy in the shadow of the wind turbine with an incline angle of 30 degrees and 150 degrees is 4.6% higher than that with an incline angle of 90 degrees. In this way, appropriate arrangements of wind turbines with various incline angles have the potential to obtain more power output in a wind farm.
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