Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea Pipeline
To investigate the wave- and current-induced seabed response near a fully buried subsea pipeline, a two-dimensional coupled model for fluid-seabed-pipeline interaction (FSPI-2D) is developed within the framework of COMSOL multiphysics. Different from previous studies, both the wave-current interacti...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9976278 |
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| author | Lunliang Duan Meiling Fan Duoyin Wang Caixia Meng Lei Xing |
| author_facet | Lunliang Duan Meiling Fan Duoyin Wang Caixia Meng Lei Xing |
| author_sort | Lunliang Duan |
| collection | DOAJ |
| description | To investigate the wave- and current-induced seabed response near a fully buried subsea pipeline, a two-dimensional coupled model for fluid-seabed-pipeline interaction (FSPI-2D) is developed within the framework of COMSOL multiphysics. Different from previous studies, both the wave-current interaction and the nonlinear pipeline-soil contacts are considered in the present model. In this paper, Biot’s consolidation mode is used to govern the fluid-induced seabed response, and combined Reynolds averaged Navier–Stokes (RANS) equation with the k-ε turbulence model is employed to simulate the fluid propagation. Meanwhile, the pipeline is treated as a linear elasticity. Firstly, the effectiveness of the new model is verified by laboratory experiments from previous reports. Then, the numerical model is employed to examine the effects of nonlinear pipeline-seabed contacts and fluid characteristics on the seabed response around the structure. Finally, the momentary liquefaction near the fully buried pipeline is studied based on the 2D coupled model. |
| format | Article |
| id | doaj-art-3cd793653d2141baa6eb63c29697899a |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-3cd793653d2141baa6eb63c29697899a2025-02-03T06:10:46ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/99762789976278Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea PipelineLunliang Duan0Meiling Fan1Duoyin Wang2Caixia Meng3Lei Xing4National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, ChinaNational Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, ChinaNational Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, ChinaNational Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, ChinaNational Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, ChinaTo investigate the wave- and current-induced seabed response near a fully buried subsea pipeline, a two-dimensional coupled model for fluid-seabed-pipeline interaction (FSPI-2D) is developed within the framework of COMSOL multiphysics. Different from previous studies, both the wave-current interaction and the nonlinear pipeline-soil contacts are considered in the present model. In this paper, Biot’s consolidation mode is used to govern the fluid-induced seabed response, and combined Reynolds averaged Navier–Stokes (RANS) equation with the k-ε turbulence model is employed to simulate the fluid propagation. Meanwhile, the pipeline is treated as a linear elasticity. Firstly, the effectiveness of the new model is verified by laboratory experiments from previous reports. Then, the numerical model is employed to examine the effects of nonlinear pipeline-seabed contacts and fluid characteristics on the seabed response around the structure. Finally, the momentary liquefaction near the fully buried pipeline is studied based on the 2D coupled model.http://dx.doi.org/10.1155/2021/9976278 |
| spellingShingle | Lunliang Duan Meiling Fan Duoyin Wang Caixia Meng Lei Xing Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea Pipeline Advances in Civil Engineering |
| title | Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea Pipeline |
| title_full | Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea Pipeline |
| title_fullStr | Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea Pipeline |
| title_full_unstemmed | Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea Pipeline |
| title_short | Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea Pipeline |
| title_sort | numerical study of wave and current induced oscillatory seabed response near a fully buried subsea pipeline |
| url | http://dx.doi.org/10.1155/2021/9976278 |
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