Paper Info
Title
Studying effect of entrainment on dynamics of debris flows using numerical simulation
Abstract
This paper studies entrainment phenomenon in debris flows using full flow (non-depth-averaged) equations and an Incompressible Smoothed Particle Hydrodynamics (ISPH) method. A viscoplastic constitutive relationship is adopted for both the overlying fluid and bed material. Collapse of a two-dimensional dry granular column on a horizontal bed consisting of entrainable dry granular material is considered as a benchmark problem. The adopted ISPH method for simulation of collapse over rigid and entrainable beds is validated using available numerical and experimental data. To quantify the effects of entrainment on dynamics of flow, the initial aspect ratio of granular column (a) is varied and the variations in momentum and energy of moving materials are investigated.
Year
DOI
Venue
2020
10.1016/j.cageo.2019.104337
Computers & Geosciences
Keywords
Field
DocType
Debris flows,Granular flows,Entrainment,Smoothed particle hydrodynamics (SPH),Viscoplastic model
Compressibility,Smoothed-particle hydrodynamics,Data mining,Computer simulation,Computer science,Debris,Flow (psychology),Granular material,Viscoplasticity,Entrainment (chronobiology),Mechanics
Journal
Volume
ISSN
Citations 
134
0098-3004
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Mohammad Nikooei100.34
M.T. Manzari200.68