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Simulation of debris flow-barrier interaction using the smoothed particle hydrodynamics and coupled Eulerian Lagrangian methods

Citation

Sha, S and Dyson, AP and Kefayati, G and Tolooiyan, A, Simulation of debris flow-barrier interaction using the smoothed particle hydrodynamics and coupled Eulerian Lagrangian methods, Finite Elements in Analysis and Design, 214 Article 103864. ISSN 0168-874X (2023) [Refereed Article]

Copyright Statement

2022 Published by Elsevier B.V.

DOI: doi:10.1016/j.finel.2022.103864

Abstract

Debris flow events occur when fine soils and sediments are mixed with water, transporting coarse objects such as boulders and woody vegetation (debris) in a fast-moving down-slope flow. As such, debris flow can have catastrophic consequences for the environment, surrounding infrastructure and human life. The mitigation of damage caused by debris flow events is often addressed by rigid and flexible barriers placed in key locations to impede flow. The numerical simulation of interactions between large debris flow events and protective structures necessitates computational methods that model large deformation and flow behaviour as well as barrier performance. Although various numerical methods exist for debris flow modelling, the benefits of each method remain unclear when coupled with the analysis of protective structures. This research investigates debris flow-barrier interaction using two distinct numerical methods the Coupled Eulerian-Lagrangian Method (CEL) and Smoothed Particle Hydrodynamics (SPH). The capabilities and limitations of each method are presented, highlighting the differences in computational cost. The results of simulations indicate preferable methods for modelling fluid-structure interaction for assessing the performance of debris flow-protective barrier structures.

Item Details

Item Type:Refereed Article
Keywords:debris flow, landslides, coupled Eulerian Lagrangian, smoothed particle hydrodynamics
Research Division:Earth Sciences
Research Group:Physical geography and environmental geoscience
Research Field:Natural hazards
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Natural hazards
Objective Field:Geological hazards (e.g. earthquakes, landslides and volcanic activity)
UTAS Author:Sha, S (Mr Shiyin Sha)
UTAS Author:Dyson, AP (Dr Ashley Dyson)
UTAS Author:Kefayati, G (Dr Gholamreza Kefayati)
UTAS Author:Tolooiyan, A (Dr Ali Tolooiyan)
ID Code:154177
Year Published:2023
Deposited By:Engineering
Deposited On:2022-11-06
Last Modified:2022-12-07
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