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    An integrated numerical model for wave-soil-pipeline interactions

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    Publication date
    2016-03
    Author
    Lin, Z.
    Guo, Yakun
    Jeng, D-S.
    Liao, C.C.
    Rey, N.
    Keyword
    Finite element method; Dynamic seabed response; Pipeline; Transient liquefaction
    Rights
    © 2016 Elsevier. Reproduced in accordance with the publisher's self-archiving policy.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    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 the 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 response for 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.
    URI
    http://hdl.handle.net/10454/7473
    Version
    Accepted Manuscript
    Citation
    Lin Z, Guo Y, Jeng D et al (2016) An integrated numerical model for wave-soil-pipeline interactions. Coastal Engineering. 108: 25-35.
    Link to publisher’s version
    http://dx.doi.org/10.1016/j.coastaleng.2015.11.003
    Type
    Article
    Collections
    Engineering and Informatics Publications

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