Large-scale experimental study on scour around both slender and large monopiles under irregular waves
Offshore wind power plays a crucial role in energy strategies. The results of traditional small-scale physical models may be unreliable when extrapolated to large field scales. This study addressed this limitation by conducting large-scale (1:13) experiments to investigate the scour hole pattern and...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Water Science and Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674237025000511 |
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| author | En-yu Gong Song-gui Chen Xin Chen Da-wei Guan Jin-hai Zheng |
| author_facet | En-yu Gong Song-gui Chen Xin Chen Da-wei Guan Jin-hai Zheng |
| author_sort | En-yu Gong |
| collection | DOAJ |
| description | Offshore wind power plays a crucial role in energy strategies. The results of traditional small-scale physical models may be unreliable when extrapolated to large field scales. This study addressed this limitation by conducting large-scale (1:13) experiments to investigate the scour hole pattern and equilibrium scour depth around both slender and large monopiles under irregular waves. The experiments adopted Keulegan–Carpenter number (NKC) values from 1.01 to 8.89 and diffraction parameter (D/L, where D is the diameter of the monopile, and L is the wave length) values from 0.016 to 0.056. The results showed that changes in the maximum scour location and scour hole shape around a slender monopile were associated with NKC, with differences observed between irregular and regular waves. Improving the calculation of NKC enhanced the accuracy of existing scour formulae under irregular waves. The maximum scour locations around a large monopile were consistently found on both sides, regardless of NKC and D/L, but the scour hole topography was influenced by both parameters. Notably, the scour range around a large monopile was at least as large as the monopile diameter. |
| format | Article |
| id | doaj-art-3fc763094e6d472d8b5f1552ceda4533 |
| institution | Kabale University |
| issn | 1674-2370 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Water Science and Engineering |
| spelling | doaj-art-3fc763094e6d472d8b5f1552ceda45332025-08-23T04:47:53ZengElsevierWater Science and Engineering1674-23702025-09-0118336937710.1016/j.wse.2025.05.001Large-scale experimental study on scour around both slender and large monopiles under irregular wavesEn-yu Gong0Song-gui Chen1Xin Chen2Da-wei Guan3Jin-hai Zheng4College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, ChinaTianjin Research Institute for Water Transport Engineering, Tianjin 300456, China; Corresponding author.College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, ChinaKey Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing 210098, ChinaOffshore wind power plays a crucial role in energy strategies. The results of traditional small-scale physical models may be unreliable when extrapolated to large field scales. This study addressed this limitation by conducting large-scale (1:13) experiments to investigate the scour hole pattern and equilibrium scour depth around both slender and large monopiles under irregular waves. The experiments adopted Keulegan–Carpenter number (NKC) values from 1.01 to 8.89 and diffraction parameter (D/L, where D is the diameter of the monopile, and L is the wave length) values from 0.016 to 0.056. The results showed that changes in the maximum scour location and scour hole shape around a slender monopile were associated with NKC, with differences observed between irregular and regular waves. Improving the calculation of NKC enhanced the accuracy of existing scour formulae under irregular waves. The maximum scour locations around a large monopile were consistently found on both sides, regardless of NKC and D/L, but the scour hole topography was influenced by both parameters. Notably, the scour range around a large monopile was at least as large as the monopile diameter.http://www.sciencedirect.com/science/article/pii/S1674237025000511ScourKeulegan–Carpenter numberIrregular wavesEquilibrium scour depthLarge-scale test |
| spellingShingle | En-yu Gong Song-gui Chen Xin Chen Da-wei Guan Jin-hai Zheng Large-scale experimental study on scour around both slender and large monopiles under irregular waves Water Science and Engineering Scour Keulegan–Carpenter number Irregular waves Equilibrium scour depth Large-scale test |
| title | Large-scale experimental study on scour around both slender and large monopiles under irregular waves |
| title_full | Large-scale experimental study on scour around both slender and large monopiles under irregular waves |
| title_fullStr | Large-scale experimental study on scour around both slender and large monopiles under irregular waves |
| title_full_unstemmed | Large-scale experimental study on scour around both slender and large monopiles under irregular waves |
| title_short | Large-scale experimental study on scour around both slender and large monopiles under irregular waves |
| title_sort | large scale experimental study on scour around both slender and large monopiles under irregular waves |
| topic | Scour Keulegan–Carpenter number Irregular waves Equilibrium scour depth Large-scale test |
| url | http://www.sciencedirect.com/science/article/pii/S1674237025000511 |
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