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

OnderzoeksoutputProfessional

22 Citaten (Scopus)

Samenvatting

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.
Originele taal-2English
Titel33rd International Conference on Ocean, Offshore and Arctic Engineering
Aantal pagina's11
StatusPublished - 8-jun-2014
Evenement33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014 - San Francisco, CA, United States
Duur: 8-jun-201413-jun-2014

Conference

Conference33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014
Land/RegioUnited States
StadSan Francisco, CA
Periode08/06/201413/06/2014

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