An integrated numerical model for wave-soil-pipeline interactions

被引：86
作者：
Lin, Zaibin [1 ]
Guo, Yakun [2 ]
Jeng, Dong-sheng [3 ]
Liao, Chencong [4 ]
Rey, Nick [5 ]
机构：
[1] Univ Aberdeen, Sch Engn, Aberdeen AB24 3UE, Scotland
[2] Univ Bradford, Sch Engn, Bradford BD7 1DP, W Yorkshire, England
[3] Griffith Univ, Griffith Sch Engn, Gold Coast Campus, Qld 4222, Australia
[4] Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China
[5] Wood Grp Kenny, Aberdeen, Scotland
来源：
COASTAL ENGINEERING | 2016年 / 108卷
关键词：
Finite Element Method; Dynamic seabed response; Pipeline; Transient liquefaction; INDUCED PORE PRESSURE; LEVEL SET METHOD; SUBMARINE PIPELINE; EFFECTIVE STRESSES; LOCAL SCOUR; GENERATION; FORCE; FLOW;
D O I：
10.1016/j.coastaleng.2015.11.003
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An integrated Finite Element Method (FEM) model is proposed to investigate the dynamic seabed response for several specific pipeline layouts and to simulate the pipeline stability under waves loading. In the present model, the Reynolds -Averaged Navier-Stokes (RANS) equations are used to describe the wave motion in a fluid domain, while the seabed domain is described using Biot's poro-elastic theory. The interface between water and air is tracked by conservative Level Set Method (LSM). The FEM and backward differentiation formula (BDF) are applied for spatial and temporal discretization respectively in the present model. One-way coupling is used to integrate flow and seabed models. The present model is firstly validated using several available laboratory experiments. It is then further extended to practical engineering applications, including the dynamic seabed responsefor the pipeline mounted on a flat seabed or inside a trench. The results show that the pipeline buried to a certain depth is better protected than that under partially buried in terms of transient liquefaction. Crown Copyright (C) 2015 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：25 / 35
页数：11
相关论文
共 63 条
[11]   A wave generation toolbox for the open-source CFD library: OpenFoam® [J].
Jacobsen, Niels G. ;
Fuhrman, David R. ;
Fredsoe, Jorgen .
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2012, 70 (09) :1073-1088
[12]   An integrated model for the wave-induced seabed response around marine structures: Model verifications and applications [J].
Jeng, D. -S. ;
Ye, J. -H. ;
Zhang, J-S ;
Liu, P. L. -F. .
COASTAL ENGINEERING, 2013, 72 :1-19
[13]  
Jeng D.-S., 1999, INT J OFFSHORE POLAR, V9
[14]   Wave-induced seabed instability around a buried pipeline in a pore-elastic seabed [J].
Jeng, DS ;
Cheng, L .
OCEAN ENGINEERING, 2000, 27 (02) :127-146
[15]   DEffects of dynamic soil behavior and wave non-linearity on the wave-induced pore pressure and effective stresses in porous seabed [J].
Jeng, DS ;
Cha, DH .
OCEAN ENGINEERING, 2003, 30 (16) :2065-2089
[16]   Wave-induced pore pressure around a composite breakwater [J].
Jeng, DS ;
Cha, DH ;
Lin, YS ;
Hu, PS .
OCEAN ENGINEERING, 2001, 28 (10) :1413-1435
[17]   Effective stresses in a porous seabed of finite thickness: inertia effects [J].
Jeng, DS ;
Rahman, MS .
CANADIAN GEOTECHNICAL JOURNAL, 2000, 37 (06) :1383-1392
[18]  
Jeng DS, 2013, Porous models for wave-seabed interactions, DOI 10.1007/978-3-642-33593-8
[19]  
Le Mehaute B., 1976, An Introduction to Hydrodynamics and Water Waves, DOI DOI 10.1007/978-3-642-85567-2.19681968
[20]  
Liang D., 2005, A Numerical Model of Onset of Scour Below Offshore Pipelines Subject to Steady Currents, P637
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