Comparative experimental investigation into wake characteristics of turbines in three wind farms areas with varying terrain complexity from LiDAR measurements

2021 ◽  
pp. 118182
Author(s):  
Xiaoxia Gao ◽  
Yao Chen ◽  
Shinai Xu ◽  
Wei Gao ◽  
Xiaoxun Zhu ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Wind Farms ◽  
Lidar Measurements ◽  
Comparative Experimental Investigation ◽  
Wake Characteristics

scholarly journals Experimental Study on Wake Evolution of a 1.5 MW Wind Turbine in a Complex Terrain Wind Farm Based on LiDAR Measurements

2020 ◽  
Vol 12 (6) ◽  
pp. 2467 ◽  
Author(s):  
Fei Zhao ◽  
Yihan Gao ◽  
Tengyuan Wang ◽  
Jinsha Yuan ◽  
Xiaoxia Gao
Keyword(s):  
Wind Speed ◽  
Wind Shear ◽  
Wind Farm ◽  
Wind Farms ◽  
Field Measurements ◽  
Development Trend ◽  
Asymmetric Distribution ◽  
Lidar Measurements ◽  
Wind Characteristics ◽  
The Development Trend

To study the wake development characteristics of wind farms in complex terrains, two different types of Light Detection and Ranging (LiDAR) were used to conduct the field measurements in a mountain wind farm in Hebei Province, China. Under two different incoming wake conditions, the influence of wind shear, terrain and incoming wind characteristics on the development trend of wake was analyzed. The results showed that the existence of wind shear effect causes asymmetric distribution of wind speed in the wake region. The relief of the terrain behind the turbine indicated a subsidence of the wake centerline, which had a linear relationship with the topography altitudes. The wake recovery rates were calculated, which comprehensively validated the conclusion that the wake recovery rate is determined by both the incoming wind turbulence intensity in the wake and the magnitude of the wind speed.

Experimental investigation of the wake characteristics behind twin vertical axis turbines

2021 ◽  
Vol 247 ◽  
pp. 114768
Author(s):  
Stephanie Müller ◽  
Valentine Muhawenimana ◽  
Catherine A.M.E. Wilson ◽  
Pablo Ouro
Keyword(s):  
Experimental Investigation ◽  
Vertical Axis ◽  
Wake Characteristics
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