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Numerical Computation of Suspended Sediment Around a Marine Pipeline Close to the Flat Seabed

[+] Author Affiliations
Muk Chen Ong, Lars Erik Holmedal, Dag Myrhaug

Norwegian University of Science and Technology, Trondheim, Norway

Paper No. OMAE2011-49111, pp. 117-125; 9 pages
doi:10.1115/OMAE2011-49111
From:
  • ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 7: CFD and VIV; Offshore Geotechnics
  • Rotterdam, The Netherlands, June 19–24, 2011
  • ISBN: 978-0-7918-4439-7
  • Copyright © 2011 by ASME

abstract

The purpose of this paper is to investigate suspended sediment transport around a marine pipeline near the seabed by solving the Unsteady Reynolds-Averaged Navier-Stokes (URANS) equations with the standard k-ε model. High Reynolds number flow simulations are considered in the present study. The suspended sediments are seeded upstream of the pipeline. Particle trajectories of the suspended sediments downstream of the pipeline have been visualized by using a Lagrangian approach. Effects of the gap (i.e. the normal distance between the pipeline and the seabed) and the sediment weight (i.e. taking into account sediment settling velocity) have been investigated and discussed.

Copyright © 2011 by ASME

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