A numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular waves
Coastal engineering and maritime hydraulics have experienced significant development over the years with the construction of bridges, oil exploration platforms, and ports, highlighting the importance of studying and quantifying the efforts resulting from wave loads on these structures. The present...
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Universidade Federal de Viçosa (UFV)
2023-05-01
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| Series: | The Journal of Engineering and Exact Sciences |
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| Online Access: | https://periodicos.ufv.br/jcec/article/view/15748 |
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| author | Guilherme Fuhrmeister Vargas Bruno Alvarez Scapin |
| author_facet | Guilherme Fuhrmeister Vargas Bruno Alvarez Scapin |
| author_sort | Guilherme Fuhrmeister Vargas |
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Coastal engineering and maritime hydraulics have experienced significant development over the years with the construction of bridges, oil exploration platforms, and ports, highlighting the importance of studying and quantifying the efforts resulting from wave loads on these structures. The present work aims to identify how a variation in the geometry of the cross-section, along the wave climate, can modify the magnitude of the wave loadings experienced by the structure. The open-source computational code OpenFOAM v. 4.1 was applied in the considered cases, along with the OlaFlow extension, considering the application of a structured mesh, the VOF (Volume of Fluid) methodology for representing the free surface, and the turbulence modeling according to Reynolds averaged equations (RANS). The results demonstrated that the shape of the cross-section plays an important role in the efforts experienced by the structure, and this influence is directly related to a characteristic length, whose intensification causes an increase in the magnitude of the experienced horizontal force. Likewise, by defining important dimensionless parameters, it was possible to obtain approximate expressions to determine the maximum wave force on the structures. The results and analyses carried out demonstrated that the force value calculated according to this approximation methodology is quite adequate, presenting relative errors smaller than 11,00%, corresponding to a relevant simplified approach for the determination of the maximum wave loads experienced by the structures, which can be important for proper design and analysis.
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| format | Article |
| id | doaj-art-2a3eda520d6d40ecbcc6a20f24ed2b9a |
| institution | Kabale University |
| issn | 2527-1075 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | Universidade Federal de Viçosa (UFV) |
| record_format | Article |
| series | The Journal of Engineering and Exact Sciences |
| spelling | doaj-art-2a3eda520d6d40ecbcc6a20f24ed2b9a2025-02-02T19:55:09ZengUniversidade Federal de Viçosa (UFV)The Journal of Engineering and Exact Sciences2527-10752023-05-019510.18540/jcecvl9iss5pp15748-01eA numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular wavesGuilherme Fuhrmeister Vargas0Bruno Alvarez Scapin1Federal University of Rio Grande do Sul (UFRGS) – Institute of Hydraulic Research (IPH), BrazilFederal University of Rio Grande do Sul (UFRGS) – Institute of Hydraulic Research (IPH), Brazil Coastal engineering and maritime hydraulics have experienced significant development over the years with the construction of bridges, oil exploration platforms, and ports, highlighting the importance of studying and quantifying the efforts resulting from wave loads on these structures. The present work aims to identify how a variation in the geometry of the cross-section, along the wave climate, can modify the magnitude of the wave loadings experienced by the structure. The open-source computational code OpenFOAM v. 4.1 was applied in the considered cases, along with the OlaFlow extension, considering the application of a structured mesh, the VOF (Volume of Fluid) methodology for representing the free surface, and the turbulence modeling according to Reynolds averaged equations (RANS). The results demonstrated that the shape of the cross-section plays an important role in the efforts experienced by the structure, and this influence is directly related to a characteristic length, whose intensification causes an increase in the magnitude of the experienced horizontal force. Likewise, by defining important dimensionless parameters, it was possible to obtain approximate expressions to determine the maximum wave force on the structures. The results and analyses carried out demonstrated that the force value calculated according to this approximation methodology is quite adequate, presenting relative errors smaller than 11,00%, corresponding to a relevant simplified approach for the determination of the maximum wave loads experienced by the structures, which can be important for proper design and analysis. https://periodicos.ufv.br/jcec/article/view/15748Wave LoadingOffshore StructuresComputational Fluid DynamicsOpenFOAMOlaFlowRANS |
| spellingShingle | Guilherme Fuhrmeister Vargas Bruno Alvarez Scapin A numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular waves The Journal of Engineering and Exact Sciences Wave Loading Offshore Structures Computational Fluid Dynamics OpenFOAM OlaFlow RANS |
| title | A numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular waves |
| title_full | A numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular waves |
| title_fullStr | A numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular waves |
| title_full_unstemmed | A numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular waves |
| title_short | A numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular waves |
| title_sort | numerical study on the wave loading on offshore structures of different cross sectional geometries under the action of regular waves |
| topic | Wave Loading Offshore Structures Computational Fluid Dynamics OpenFOAM OlaFlow RANS |
| url | https://periodicos.ufv.br/jcec/article/view/15748 |
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