Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel Study
The wake behavior of wind turbines in complex terrain is influenced by the combined effects of atmospheric turbulence and terrain features, which brings challenges to wind farm power production and safety. Despite extensive studies, there remains a gap in understanding the combined impact of turbule...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/18/11/2865 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849331280822403072 |
|---|---|
| author | Bowen Yan Shuangchen Tang Meng Yu Guowei Qian Yao Chen |
| author_facet | Bowen Yan Shuangchen Tang Meng Yu Guowei Qian Yao Chen |
| author_sort | Bowen Yan |
| collection | DOAJ |
| description | The wake behavior of wind turbines in complex terrain is influenced by the combined effects of atmospheric turbulence and terrain features, which brings challenges to wind farm power production and safety. Despite extensive studies, there remains a gap in understanding the combined impact of turbulent inflows and terrain slopes on turbine wake behaviors. To address this, the current study conducted systematic wind tunnel experiments, using scaled wind turbines and terrain models featured both gentle and steep slopes. In the experiments, different turbulent inflows were generated and the wake characteristics of turbines located at different locations were analyzed. The results demonstrated that higher turbulence intensity accelerates wake recovery, and that steep slopes introduce distinctive wake patterns, including multi-peak added turbulence intensity profiles. Moreover, turbines on hilltops exhibited a more rapid wake recovery compared to those positioned in front of hills, a phenomenon attributed to the influence of adverse pressure gradients. This study provides pivotal experimental insights into the evolution laws of wind turbine wake over terrains under different turbulent inflow conditions, which are instrumental in wind turbine siting in complex terrains. |
| format | Article |
| id | doaj-art-c2d5670406de42a2b389750b4e423065 |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-c2d5670406de42a2b389750b4e4230652025-08-20T03:46:38ZengMDPI AGEnergies1996-10732025-05-011811286510.3390/en18112865Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel StudyBowen Yan0Shuangchen Tang1Meng Yu2Guowei Qian3Yao Chen4Chongqing Key Laboratory of Wind Engineering and Wind Resource Utilization, School of Civil Engineering, Chongqing University, Chongqing 400045, ChinaChongqing Key Laboratory of Wind Engineering and Wind Resource Utilization, School of Civil Engineering, Chongqing University, Chongqing 400045, ChinaChongqing Key Laboratory of Wind Engineering and Wind Resource Utilization, School of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ocean Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, ChinaChongqing Key Laboratory of Wind Engineering and Wind Resource Utilization, School of Civil Engineering, Chongqing University, Chongqing 400045, ChinaThe wake behavior of wind turbines in complex terrain is influenced by the combined effects of atmospheric turbulence and terrain features, which brings challenges to wind farm power production and safety. Despite extensive studies, there remains a gap in understanding the combined impact of turbulent inflows and terrain slopes on turbine wake behaviors. To address this, the current study conducted systematic wind tunnel experiments, using scaled wind turbines and terrain models featured both gentle and steep slopes. In the experiments, different turbulent inflows were generated and the wake characteristics of turbines located at different locations were analyzed. The results demonstrated that higher turbulence intensity accelerates wake recovery, and that steep slopes introduce distinctive wake patterns, including multi-peak added turbulence intensity profiles. Moreover, turbines on hilltops exhibited a more rapid wake recovery compared to those positioned in front of hills, a phenomenon attributed to the influence of adverse pressure gradients. This study provides pivotal experimental insights into the evolution laws of wind turbine wake over terrains under different turbulent inflow conditions, which are instrumental in wind turbine siting in complex terrains.https://www.mdpi.com/1996-1073/18/11/2865wind tunnel testwind turbine wakevelocity deficitadded turbulence intensitycomplex terrain |
| spellingShingle | Bowen Yan Shuangchen Tang Meng Yu Guowei Qian Yao Chen Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel Study Energies wind tunnel test wind turbine wake velocity deficit added turbulence intensity complex terrain |
| title | Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel Study |
| title_full | Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel Study |
| title_fullStr | Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel Study |
| title_full_unstemmed | Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel Study |
| title_short | Atmospheric Turbulence Effects on Wind Turbine Wakes over Two-Dimensional Hill: A Wind Tunnel Study |
| title_sort | atmospheric turbulence effects on wind turbine wakes over two dimensional hill a wind tunnel study |
| topic | wind tunnel test wind turbine wake velocity deficit added turbulence intensity complex terrain |
| url | https://www.mdpi.com/1996-1073/18/11/2865 |
| work_keys_str_mv | AT bowenyan atmosphericturbulenceeffectsonwindturbinewakesovertwodimensionalhillawindtunnelstudy AT shuangchentang atmosphericturbulenceeffectsonwindturbinewakesovertwodimensionalhillawindtunnelstudy AT mengyu atmosphericturbulenceeffectsonwindturbinewakesovertwodimensionalhillawindtunnelstudy AT guoweiqian atmosphericturbulenceeffectsonwindturbinewakesovertwodimensionalhillawindtunnelstudy AT yaochen atmosphericturbulenceeffectsonwindturbinewakesovertwodimensionalhillawindtunnelstudy |