Numerical investigation of local scour around submerged pipeline in shoaling conditions

Ming-ming Liu, Ming Zhao, Lin Lu

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

![CDATA[Water waves play an important role in local scour around subsea pipelines laid on the sandy seabed, especially in shallow water regions. In this paper, a two-dimensional numerical model is employed to predict local scour around submarine pipelines under water waves in shoaling condition. The motion of water under waves is simulated by solving the Reynolds Averaged Navier-Stokes (RANS) equations. The evolution of the seabed surface near the pipeline is predicted by solving the conservation of the sediment mass, which transport in the water in the forms of bed load and suspended load. The main aim of this study is to investigate the effect of the seabed slope on the scour profiles and scour depth. To achieve this aim, numerical simulations of scour around a pipeline on a flat seabed and on a slope seabed with a slope angle of 15° are conducted for various wave conditions.]]
Original languageEnglish
Title of host publicationProceedings of the 37th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2018), Madrid, Spain, June 17-22, 2018
PublisherAmerican Society of Mechanical Engineers
Number of pages6
ISBN (Print)9780791851210
DOIs
Publication statusPublished - 2018
EventInternational Conference on Ocean_Offshore and Arctic Engineering -
Duration: 17 Jun 2018 → …

Conference

ConferenceInternational Conference on Ocean_Offshore and Arctic Engineering
Period17/06/18 → …

Keywords

  • Navier-Stokes equations
  • computational fluid dynamics
  • offshore oil well drilling
  • scour (hydraulic engineering)
  • underwater pipelines

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