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.
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ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering
June 8–13, 2014
San Francisco, California, USA
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4540-0
PROCEEDINGS PAPER
Turbulence Modeling, Local Grid Refinement and Absorbing Boundary Conditions for Free-Surface Flow Simulations in Offshore Applications
Arthur E. P. Veldman,
Arthur E. P. Veldman
University of Groningen, Groningen, The Netherlands
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Roel Luppes,
Roel Luppes
University of Groningen, Groningen, The Netherlands
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Henri J. L. van der Heiden,
Henri J. L. van der Heiden
University of Groningen, Groningen, The Netherlands
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Peter van der Plas,
Peter van der Plas
University of Groningen, Groningen, The Netherlands
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Bülent Düz,
Bülent Düz
Technical University of Delft, Delft, The Netherlands
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René H. M. Huijsmans
René H. M. Huijsmans
Technical University of Delft, Delft, The Netherlands
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Arthur E. P. Veldman
University of Groningen, Groningen, The Netherlands
Roel Luppes
University of Groningen, Groningen, The Netherlands
Henri J. L. van der Heiden
University of Groningen, Groningen, The Netherlands
Peter van der Plas
University of Groningen, Groningen, The Netherlands
Bülent Düz
Technical University of Delft, Delft, The Netherlands
René H. M. Huijsmans
Technical University of Delft, Delft, The Netherlands
Paper No:
OMAE2014-24427, V002T08A076; 11 pages
Published Online:
October 1, 2014
Citation
Veldman, AEP, Luppes, R, van der Heiden, HJL, van der Plas, P, Düz, B, & Huijsmans, RHM. "Turbulence Modeling, Local Grid Refinement and Absorbing Boundary Conditions for Free-Surface Flow Simulations in Offshore Applications." Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. Volume 2: CFD and VIV. San Francisco, California, USA. June 8–13, 2014. V002T08A076. ASME. https://doi.org/10.1115/OMAE2014-24427
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