An overview of debris-flow mathematical modelling

MG Trujillo-Vela, AM Ramos-Cañón… - Earth-Science …, 2022 - Elsevier
Debris flows are among the most catastrophic natural phenomena, attracting the interest of
researchers, engineers and government agencies. The complexity of the physical process …

Smoothed particle hydrodynamics (SPH) and its applications in geomechanics: From solid fracture to granular behaviour and multiphase flows in porous media

HH Bui, GD Nguyen - Computers and Geotechnics, 2021 - Elsevier
We present the fundamental concepts of SPH with particular emphasis on its state-of-the-art
applications in geomechanics and geotechnical engineering. In the first part of the paper, we …

A five-phase approach, SPH framework and applications for predictions of seepage-induced internal erosion and failure in unsaturated/saturated porous media

G Ma, HH Bui, Y Lian, KM Tran, GD Nguyen - Computer Methods in …, 2022 - Elsevier
Seepage-induced internal erosion and failure in unsaturated/saturated porous media is
challenging for computational simulations as they involve the behaviour, interactions (solid …

Dynamics of granular debris flows against slit dams based on the CFD–DEM method: effect of grain size distribution and ambient environments

W Mao, Y Wang, P Yang, Y Huang, H Zheng - Acta Geotechnica, 2023 - Springer
Earth surface flows in nature, like debris flows and rock avalanches, have threatened
people's safety and infrastructure during past decades. Though grain size distribution (GSD) …

A general SPH framework for transient seepage flows through unsaturated porous media considering anisotropic diffusion

Y Lian, HH Bui, GD Nguyen, HT Tran… - Computer Methods in …, 2021 - Elsevier
Abstract The Smoothed Particle Hydrodynamics (SPH) method has become a popular
numerical tool to solve many challenging engineering applications. However, its application …

A computationally efficient SPH framework for unsaturated soils and its application to predicting the entire rainfall-induced slope failure process

Y Lian, HH Bui, GD Nguyen, S Zhao, A Haque - Géotechnique, 2022 - icevirtuallibrary.com
The first and fully validated smoothed particle hydrodynamics (SPH) model is presented to
tackle coupled flow–deformation problems in unsaturated porous media that undergo large …

DEM-enriched contact approach for material point method

H Chen, S Zhao, J Zhao, X Zhou - Computer Methods in Applied Mechanics …, 2023 - Elsevier
A major challenge for material point method (MPM) is to model multi-body and multi-material
interactions. Prevailing contact schemes developed for MPM suffer from numerical …

[HTML][HTML] An effective and stabilised (u− pl) SPH framework for large deformation and failure analysis of saturated porous media

Y Lian, HH Bui, GD Nguyen, A Haque - Computer Methods in Applied …, 2023 - Elsevier
Particle-based methods such as SPH have been proven to be powerful numerical tools for
addressing challenges in solving coupled large deformation and failure of porous materials …

Coupled material point and level set methods for simulating soils interacting with rigid objects with complex geometry

Y Zhao, J Choo, Y Jiang, L Li - Computers and Geotechnics, 2023 - Elsevier
The material point method (MPM) is often used to simulate soils that interact with (nearly)
rigid objects, such as structures, machines, or rocks. Yet MPM simulations of such problems …

A massive MPI parallel framework of smoothed particle hydrodynamics with optimized memory management for extreme mechanics problems

J Liu, X Yang, Z Zhang, M Liu - Computer Physics Communications, 2024 - Elsevier
The dynamic failure process of structures under extreme loadings is very common in many
fields of engineering and science. The smoothed particle hydrodynamics (SPH) method …