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Scouring Below Pipelines: The Role of Vorticity and Turbulence

[+] Author Affiliations
Matteo Mattioli, Alessandro Mancinelli, Maurizio Brocchini

Polytechnic University of Marche, Ancona, Italy

Giuseppina Colicchio

INSEAN, Rome, Italy

Paper No. FEDSM-ICNMM2010-31043, pp. 265-267; 3 pages
doi:10.1115/FEDSM-ICNMM2010-31043
From:
  • ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
  • ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 2, Fora
  • Montreal, Quebec, Canada, August 1–5, 2010
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4949-1 | eISBN: 978-0-7918-3880-8
  • Copyright © 2010 by ASME

abstract

A numerical study on the turbulence and vorticity of local scour underneath an offshore pipeline placed on a non-cohesive sandy seabed and forced by a steady flow current is presented. The numerical model solves the Navier-Stokes equations using an innovative Level Set technique. The model predicts the behavior of the movable sediments through both drift and lift force components. Mean and turbulent flow quantities were extracted by temporal averaging. Results on the distribution and evolution of turbulent kinetic energy and vorticity will be illustrated at the conference.

Copyright © 2010 by ASME

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