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Download fileA new GPU-accelerated coupled discrete element and depth-averaged model for simulation of flow-like landslides
journal contribution
posted on 2022-05-24, 14:55 authored by Xiaoli SuXiaoli Su, Qiuhua LiangQiuhua Liang, Xilin XiaFlow-like landslides are a common type of natural hazards that may impose a great risk to people and their properties. Different models have been reported for simulating flow-like landslides, all of which possess limitations due to the underlying assumptions and simplifications. Harnessing the advantages of two types of prevailing modelling approaches, a new coupled model is developed which adopts a discrete element method (DEM) model to simulate the complex collapsing process in the source area and a depth-averaged model (DAM) to predict the predominantly convective movement in the runout and deposition zones. The coupled model is finally implemented on the NVIDIA CUDA programming platform to achieve GPU high-performance computing. Two laboratory tests are considered to validate the model and a field-scale landslide event is simulated to verify its applicability in real-world conditions. Satisfactory results confirm that the coupled model is able to reproduce the dynamic process of real-world flow-like landslides.
Funding
Web-Based Natural Dam-Burst Flood Hazard Assessment and ForeCasting SysTem (WeACT)
Natural Environment Research Council
Find out more...History
School
- Architecture, Building and Civil Engineering
Published in
Environmental Modelling & SoftwareVolume
153Publisher
Elsevier BVVersion
- VoR (Version of Record)
Rights holder
© The AuthorsPublisher statement
This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: https://creativecommons.org/licenses/by/4.0/Acceptance date
2022-04-28Publication date
2022-05-01Copyright date
2022ISSN
1364-8152Publisher version
Language
- en