Numerical Study of the Influence of Tidal Current on Submarine Pipeline Based on the SIFOM–FVCOM Coupling Model
The interaction between coastal ocean flows and the submarine pipeline involved with distinct physical phenomena occurring at a vast range of spatial and temporal scales has always been an important research subject. In this article, the hydrodynamic forces on the submarine pipeline and the characte...
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doaj-b8d2d7596fe94140829ac84231b17e322020-11-25T01:28:27ZengMDPI AGWater2073-44412018-12-011012181410.3390/w10121814w10121814Numerical Study of the Influence of Tidal Current on Submarine Pipeline Based on the SIFOM–FVCOM Coupling ModelEnjin Zhao0Lin Mu1Bing Shi2College of Marine Science and Technology, China University of Geosciences, Wuhan 430074, ChinaCollege of Marine Science and Technology, China University of Geosciences, Wuhan 430074, ChinaCollege of Engineering, Ocean University of China, Qingdao 266100, ChinaThe interaction between coastal ocean flows and the submarine pipeline involved with distinct physical phenomena occurring at a vast range of spatial and temporal scales has always been an important research subject. In this article, the hydrodynamic forces on the submarine pipeline and the characteristics of tidal flows around the pipeline are studied depending on a high-fidelity multi-physics modeling system (SIFOM⁻FVCOM), which is an integration of the Solver for Incompressible Flow on the Overset Meshes (SIFOM) and the Finite Volume Coastal Ocean Model (FVCOM). The interactions between coastal ocean flows and the submarine pipeline are numerically simulated in a channel flume, the results of which show that the hydrodynamic forces on the pipeline increase with the increase of tidal amplitude and the decrease of water depth. Additionally, when scour happens under the pipeline, the numerical simulation of the suspended pipeline is also carried out, showing that the maximum horizontal hydrodynamic forces on the pipeline reduce and the vertical hydrodynamic forces grow with the increase of the scour depth. According to the results of the simulations in this study, an empirical formula for estimating the hydrodynamic forces on the submarine pipeline caused by coastal ocean flows is given, which might be useful in engineering problems. The results of the study also reveal the basic features of flow structures around the submarine pipeline and its hydrodynamic forces caused by tidal flows, which contributes to the design of submarine pipelines.https://www.mdpi.com/2073-4441/10/12/1814SIFOM–FVCOMoverset gridsubmarine pipelinetidehydrodynamic forceflow turbulence |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Enjin Zhao Lin Mu Bing Shi |
spellingShingle |
Enjin Zhao Lin Mu Bing Shi Numerical Study of the Influence of Tidal Current on Submarine Pipeline Based on the SIFOM–FVCOM Coupling Model Water SIFOM–FVCOM overset grid submarine pipeline tide hydrodynamic force flow turbulence |
author_facet |
Enjin Zhao Lin Mu Bing Shi |
author_sort |
Enjin Zhao |
title |
Numerical Study of the Influence of Tidal Current on Submarine Pipeline Based on the SIFOM–FVCOM Coupling Model |
title_short |
Numerical Study of the Influence of Tidal Current on Submarine Pipeline Based on the SIFOM–FVCOM Coupling Model |
title_full |
Numerical Study of the Influence of Tidal Current on Submarine Pipeline Based on the SIFOM–FVCOM Coupling Model |
title_fullStr |
Numerical Study of the Influence of Tidal Current on Submarine Pipeline Based on the SIFOM–FVCOM Coupling Model |
title_full_unstemmed |
Numerical Study of the Influence of Tidal Current on Submarine Pipeline Based on the SIFOM–FVCOM Coupling Model |
title_sort |
numerical study of the influence of tidal current on submarine pipeline based on the sifom–fvcom coupling model |
publisher |
MDPI AG |
series |
Water |
issn |
2073-4441 |
publishDate |
2018-12-01 |
description |
The interaction between coastal ocean flows and the submarine pipeline involved with distinct physical phenomena occurring at a vast range of spatial and temporal scales has always been an important research subject. In this article, the hydrodynamic forces on the submarine pipeline and the characteristics of tidal flows around the pipeline are studied depending on a high-fidelity multi-physics modeling system (SIFOM⁻FVCOM), which is an integration of the Solver for Incompressible Flow on the Overset Meshes (SIFOM) and the Finite Volume Coastal Ocean Model (FVCOM). The interactions between coastal ocean flows and the submarine pipeline are numerically simulated in a channel flume, the results of which show that the hydrodynamic forces on the pipeline increase with the increase of tidal amplitude and the decrease of water depth. Additionally, when scour happens under the pipeline, the numerical simulation of the suspended pipeline is also carried out, showing that the maximum horizontal hydrodynamic forces on the pipeline reduce and the vertical hydrodynamic forces grow with the increase of the scour depth. According to the results of the simulations in this study, an empirical formula for estimating the hydrodynamic forces on the submarine pipeline caused by coastal ocean flows is given, which might be useful in engineering problems. The results of the study also reveal the basic features of flow structures around the submarine pipeline and its hydrodynamic forces caused by tidal flows, which contributes to the design of submarine pipelines. |
topic |
SIFOM–FVCOM overset grid submarine pipeline tide hydrodynamic force flow turbulence |
url |
https://www.mdpi.com/2073-4441/10/12/1814 |
work_keys_str_mv |
AT enjinzhao numericalstudyoftheinfluenceoftidalcurrentonsubmarinepipelinebasedonthesifomfvcomcouplingmodel AT linmu numericalstudyoftheinfluenceoftidalcurrentonsubmarinepipelinebasedonthesifomfvcomcouplingmodel AT bingshi numericalstudyoftheinfluenceoftidalcurrentonsubmarinepipelinebasedonthesifomfvcomcouplingmodel |
_version_ |
1725101606897188864 |