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  4. Numerical modeling of the flow and seabed erosion around a pipeline using smoothed particle hydrodynamics (SPH)
 
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Numerical modeling of the flow and seabed erosion around a pipeline using smoothed particle hydrodynamics (SPH)

Publikationstyp
Conference Paper
Date Issued
2015-05
Sprache
English
Author(s)
Bozhana, Stefanova  
Grabe, Jürgen  
Institut
Geotechnik und Baubetrieb B-5  
TORE-URI
http://hdl.handle.net/11420/7289
Start Page
725
End Page
732
Citation
Scour and Erosion - 7th International Conference on Scour and Erosion, ICSE: 725-732 (2015-05)
Contribution to Conference
Scour and Erosion - 7th International Conference on Scour and Erosion, ICSE 2014  
Publisher DOI
10.1201/b17703-93
Scopus ID
2-s2.0-84942110926
Pipelines placed on the seabed are subjected to a range of hydrodynamic forces due to currents, waves and tidal events.The seabed is often disturbed by the complex flowconditions so that sediment transport and erosion can be caused. Recent experiments, conducted at the University ofWestern Australia in the experimental facility O-tube, have shown that the scour around the pipeline is related to the flow velocity and conditions as well as to the pipeline embedment. Furthermore, the occurrence of scour is able to cause displacements of the pipeline. This paper presents numerical analysis based on the aforementioned experiments. It focuses on the flow conditions and the loading of the pipeline and the seabed in order to summarize the factor of influence for the development of scour and erosion. For this purpose the meshless numerical method Smoothed Particle Hydrodynamics (SPH) is used. A novel application using a two phase model and the hypoplastic constitutive model for soil is presented.
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