A Study on the Scour Surrounding the Fixed Foundation of an Offshore Wind Turbine under Complex Waves, Tidal Currents, and Pile Vibration Conditions
Scouring around the fixed foundations of offshore wind turbines (OWTs) remains a pressing concern within the offshore wind industry, significantly jeopardizing OWT safety. Despite previous efforts, the current understanding of this phenomenon remains incomplete, as various factors related to offshor...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/7/1561 |
| _version_ | 1797212630281093120 |
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| author | Bo Qin Rui Qu Wenxian Yang Yanfeng Xie |
| author_facet | Bo Qin Rui Qu Wenxian Yang Yanfeng Xie |
| author_sort | Bo Qin |
| collection | DOAJ |
| description | Scouring around the fixed foundations of offshore wind turbines (OWTs) remains a pressing concern within the offshore wind industry, significantly jeopardizing OWT safety. Despite previous efforts, the current understanding of this phenomenon remains incomplete, as various factors related to offshore wind farms and OWT operations can exert intricate influences. To further explore this matter, this paper undertakes a new study to further understand the interplay between monopile vibrations, tidal currents, and sea waves, elucidating their combined impact on scour surrounding an OWT’s foundation. It was found that, besides pile vibration amplitude and frequency, the pile vibration direction can also notably influence the scour around the monopile. Specifically, the most pronounced scour mostly transpires when the monopile undergoes vibrations along the 135° direction relative to the inflow direction. The mildest scour mostly occurs when the pile vibrates along the 90° direction. Additionally, this study reveals that different types of waves, indicated by the ratio of water depth, H, to wavelength, L, also engender varying scour around the monopile. The influence of waves on scour increases with the decrease in the H/L ratio, implying that OWT foundations are more threatened by shallow water waves than by deep water waves. |
| first_indexed | 2024-04-24T10:45:26Z |
| format | Article |
| id | doaj.art-57068797d4114cbea0c19c645ceb3b53 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-24T10:45:26Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-57068797d4114cbea0c19c645ceb3b532024-04-12T13:17:44ZengMDPI AGEnergies1996-10732024-03-01177156110.3390/en17071561A Study on the Scour Surrounding the Fixed Foundation of an Offshore Wind Turbine under Complex Waves, Tidal Currents, and Pile Vibration ConditionsBo Qin0Rui Qu1Wenxian Yang2Yanfeng Xie3School of Mechanical Engineering, Hunan Institute of Engineering, Xiangtan 411104, ChinaSchool of Mechanical Engineering, Hunan Institute of Engineering, Xiangtan 411104, ChinaSchool of Computing and Engineering, University of Huddersfield, Huddersfield HD1 3DH, UKSchool of Mechanical Engineering, Hunan Institute of Engineering, Xiangtan 411104, ChinaScouring around the fixed foundations of offshore wind turbines (OWTs) remains a pressing concern within the offshore wind industry, significantly jeopardizing OWT safety. Despite previous efforts, the current understanding of this phenomenon remains incomplete, as various factors related to offshore wind farms and OWT operations can exert intricate influences. To further explore this matter, this paper undertakes a new study to further understand the interplay between monopile vibrations, tidal currents, and sea waves, elucidating their combined impact on scour surrounding an OWT’s foundation. It was found that, besides pile vibration amplitude and frequency, the pile vibration direction can also notably influence the scour around the monopile. Specifically, the most pronounced scour mostly transpires when the monopile undergoes vibrations along the 135° direction relative to the inflow direction. The mildest scour mostly occurs when the pile vibrates along the 90° direction. Additionally, this study reveals that different types of waves, indicated by the ratio of water depth, H, to wavelength, L, also engender varying scour around the monopile. The influence of waves on scour increases with the decrease in the H/L ratio, implying that OWT foundations are more threatened by shallow water waves than by deep water waves.https://www.mdpi.com/1996-1073/17/7/1561offshore wind turbinefixed foundationscourtidal currentwave |
| spellingShingle | Bo Qin Rui Qu Wenxian Yang Yanfeng Xie A Study on the Scour Surrounding the Fixed Foundation of an Offshore Wind Turbine under Complex Waves, Tidal Currents, and Pile Vibration Conditions Energies offshore wind turbine fixed foundation scour tidal current wave |
| title | A Study on the Scour Surrounding the Fixed Foundation of an Offshore Wind Turbine under Complex Waves, Tidal Currents, and Pile Vibration Conditions |
| title_full | A Study on the Scour Surrounding the Fixed Foundation of an Offshore Wind Turbine under Complex Waves, Tidal Currents, and Pile Vibration Conditions |
| title_fullStr | A Study on the Scour Surrounding the Fixed Foundation of an Offshore Wind Turbine under Complex Waves, Tidal Currents, and Pile Vibration Conditions |
| title_full_unstemmed | A Study on the Scour Surrounding the Fixed Foundation of an Offshore Wind Turbine under Complex Waves, Tidal Currents, and Pile Vibration Conditions |
| title_short | A Study on the Scour Surrounding the Fixed Foundation of an Offshore Wind Turbine under Complex Waves, Tidal Currents, and Pile Vibration Conditions |
| title_sort | study on the scour surrounding the fixed foundation of an offshore wind turbine under complex waves tidal currents and pile vibration conditions |
| topic | offshore wind turbine fixed foundation scour tidal current wave |
| url | https://www.mdpi.com/1996-1073/17/7/1561 |
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