Multiphysics SPH simulations with local particle coarsening

Publikationstyp
Conference Paper
Date Issued
2011
Sprache
English
Author(s)
Ulrich, Christian  
Bednarek, Sven  
Rung, Thomas  orcid-logo
Institut
Fluiddynamik und Schiffstheorie M-8  
TORE-URI
http://hdl.handle.net/11420/12401
Start Page
137
End Page
146
Citation
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE Vol. 7 (): 137-146 (2011)
Contribution to Conference
ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2011  
Publisher DOI
10.1115/OMAE2011-49197
Scopus ID
2-s2.0-84855794749
Publisher
ASME
The paper reports on Smoothed-Particle-Hydrodynamics (SPH) for multi-physics water/soil interaction computations with dynamic particle coarsening. The procedure is supposed to be applied to harbour and ocean engineering hydrodynamic problems focussing on sediment scouring. This type of simulation usually implies large computational domains, fluid-soil interaction and complex geometries leading to large numbers of particles. To achieve a reasonable time-to-solution even for full-scale simulations, effective strategies to increase the computational performance are needed. We present a dynamic particle refinement/ coarsening strategy based on variable particle masses and spacings. The particle properties are updated in accordance to their current location. Validation studies refer to different water/ soil interaction test cases. Results obtained from the present refinement/coarsening approach show an encouraging predictive and computational performance.
DDC Class
600: Technik
620: Ingenieurwissenschaften