Finite element modelling of scour around a subsea structure in steady currents

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

3 Citations (Scopus)

Abstract

In this study a three-dimensional finite element numerical model is established for simulating local scour around a subsea structure in steady currents. The flow is simulated by solving the Reynolds-Averaged Navier-Stokes equations with a k-ω turbulent model closure. Both suspended load and bed-load sediment transport rates are included in the model. Efforts are made to reduce the computational time associated with threedimensional morphological modelling. These include the use of wall-function to avoid resolving the near-wall boundary layers, large morphological time step and parallel computing techniques. Scour around a submerged wall mounted vertical circular cylinder is simulated. The effect of the cylinder height on the scour is investigated.

Original languageEnglish
Title of host publicationProceedings of the 18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008
Pages290-296
Number of pages7
Publication statusPublished - 2008
Externally publishedYes
Event18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008 - Vancouver, BC, Canada
Duration: 6 Jul 200811 Jul 2008

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008
Country/TerritoryCanada
CityVancouver, BC
Period6/07/0811/07/08

Keywords

  • Circular cylinder
  • Local scour
  • Navier-Stokes equations
  • Subsea structure
  • Turbulence

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