Turbulence modeling, local grid refinement and absorbing boundary conditions for free-surface flow simulations in offshore applications.

Arthur Veldman, Roelf Luppes, Hendrik van der Heiden, Peter van der Plas, Bulent Duz, Rene Huijsmans

Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

21 Citations (Scopus)

Abstract

To study extreme hydrodynamic wave impact in offshore and coastal engineering, the VOF-based CFD simulation tool ComFLOW is being developed. Recently, much attention has been paid to turbulence modeling, local grid refinement, wave propagation and absorbing boundary conditions. The turbulence model has to cope with coarse grids as used in industrial applications. Thereto a blend of a QR-model and a regularization model has been designed, in combination with a dedicated wall model.
Local grid refinement is based on a semi-structured approach. Near refinement interfaces special discretization stencils have been designed.
The computational domain is restricted to the close environment of the objects studied. To suppress unphysical reflections, special generating and absorbing boundary conditions have been designed. The combined performance of the new ingredients will be demonstrated with several applications. For validation, experiments have been carried out at MARIN.
Original languageEnglish
Title of host publication33rd International Conference on Ocean, Offshore and Arctic Engineering
Number of pages11
Publication statusPublished - 8-Jun-2014
Event33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014 - San Francisco, CA, United States
Duration: 8-Jun-201413-Jun-2014

Conference

Conference33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014
Country/TerritoryUnited States
CitySan Francisco, CA
Period08/06/201413/06/2014

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