Modeling of flow around FPSO hull sections subject to roll motions: Effect of the separated flow around bilge keels

Yi-Hsiang Yu*, Spyros A. Kinnas, Vimal Vinayan, Bharani K. Kacham

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

The objective of this research is to understand the physics of the separated unsteady viscous flow over the bilge keels of an FPSO hull subject to roll motions and to predict the corresponding hydrodynamic coefficients. A numerical scheme which is based on the Finite Volume Method (FVM) for the solution of the 2-D Navier-Stokes equations is presented (NS2D). The scheme is validated for a submerged hull roll problem and applied to an FPSO hull subject to roll motions with or without bilge keels. The effects of the bilge keel size and orientation on the hydrodynamic coefficients are investigated. Moreover, a Boundary Element Method (BEM) based potential solver is developed in order to investigate the effects of the non-linear free-surface boundary conditions on the predictions.

Original languageEnglish
Title of host publicationProceedings of the International Offshore and Polar Engineering Conference
Pages163-170
Number of pages8
StatePublished - 19 Jun 2005
Event15th International Offrshore and Polar Engineering Conference, ISOPE-2005 - Seoul, Korea, Republic of
Duration: 19 Jun 200524 Jun 2005

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2005
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference15th International Offrshore and Polar Engineering Conference, ISOPE-2005
Country/TerritoryKorea, Republic of
CitySeoul
Period19/06/0524/06/05

Keywords

  • Bilge keels
  • Finite volume method
  • FPSO hull
  • Navier-Stokes equations
  • Roll motion

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