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A 3D smoothed particle hydrodynamics model for erosional dam-break floods
Publikationstyp
Journal Article
Date Issued
2017-11-26
Sprache
English
Institut
TORE-URI
Volume
31
Issue
10
Start Page
413
End Page
434
Citation
International Journal of Computational Fluid Dynamics 10 (31): 413-434 (2017-11-26)
Publisher DOI
Scopus ID
Publisher
Taylor and Francis
A mesh-less smoothed particle hydrodynamics (SPH) model for bed-load transport on erosional dam-break floods is presented. This mixture model describes both the liquid phase and the solid granular material. The model is validated on the results from several experiments on erosional dam breaks. A comparison between the present model and a 2-phase SPH model for geotechnical applications (Gadget Soil; TUHH) is performed. A demonstrative 3D erosional dam break on complex topography is investigated. The present 3D mixture model is characterised by: no tuning parameter for the mixture viscosity; consistency with the Kinetic Theory of Granular Flow; ability to reproduce the evolution of the free surface and the bed-load transport layer; applicability to practical problems in civil engineering. The numerical developments of this study are represented by a new SPH scheme for bed-load transport, which is implemented in the SPH code SPHERA v.8.0 (RSE SpA), distributed as FOSS on GitHub.
Subjects
bed-load transport
CFD
erosional dam breaks
floods
granular material
SPH
DDC Class
550: Geowissenschaften
600: Technik
620: Ingenieurwissenschaften