Lift force optimization of gravity base offshore foundations using CFD

D. Markus, A. Kelder, R. Wüchner, K. U. Bletzinger

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

Abstract

An investigation of lift forces acting on gravity base foundations is presented, utilizing the CFD based Virtual Free Surface (VFS) reduced modeling technique. The paper raises awareness of the significant vertical loads that may ensue when currents and waves are subjected to a bluff body. An efficient solution to this design challenge is proposed and analyzed, by introducing an under-body diffuser. The structure is tested and analyzed for various wave and current load cases. Finally, an extensive surrogate based optimization of the structure is carried out in order to find the most suitable diffuser configuration.

Original languageEnglish
Title of host publicationProceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan
PublisherInternational Society of Offshore and Polar Engineers
Pages624-631
Number of pages8
ISBN (Print)9781880653913
StatePublished - 2014
Event24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan - Busan, Korea, Republic of
Duration: 15 Jun 201420 Jun 2014

Publication series

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

Conference

Conference24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan
Country/TerritoryKorea, Republic of
CityBusan
Period15/06/1420/06/14

Keywords

  • CFD
  • Diffuser
  • Gravity base
  • Lift forces
  • Optimization
  • Surrogate modeling
  • Waves

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