Tidal Current with Sediment Transport Analysis and Wind Turbine Foundation Pile Scour Trend Studies on the Central Bohai Sea
This study addresses the local scour problem of monopile foundations in the central Bohai Sea. This study integrates numerical simulations with experimental validation to conduct an in-depth analysis of the tidal current background, sediment transport, sediment sources, and scour characteristics ove...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
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| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/13/1/180 |
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| Summary: | This study addresses the local scour problem of monopile foundations in the central Bohai Sea. This study integrates numerical simulations with experimental validation to conduct an in-depth analysis of the tidal current background, sediment transport, sediment sources, and scour characteristics over the past two decades. The analysis of ocean currents and sediment dynamics revealed that the monthly average tidal current speed in the majority of the study region is below 0.6 m·s<sup>−1</sup>, with annual seabed erosion and accretion changes within 0.02 m, exhibiting minimal variation. The annual erosion and accretion changes in the wind farm areas are less than 0.01 m. The analysis of local scour around monopile foundations indicates that approximately 80% of the scour occurs during the initial phase. A comparative analysis of collar protection effectiveness indicates that the collar can effectively reduce scour depth by 50%, thereby demonstrating significant protective effects. However, the prevailing trend of scouring remains unaltered, indicating that collar protection has inherent limitations in regulating early-stage scouring. The findings of this study provide a theoretical basis for the design and protection of monopile foundations in the central Bohai Sea and offer a valuable reference point for the scour protection of wind turbine foundations in similar regions. |
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| ISSN: | 2077-1312 |