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Experimental and numerical investigation on the propagation and impact behavior of dry granular flows
The flow of granular materials such as soil, sand, and gravel is a common occurrence in mountainous area in the form of geological disasters, such as...
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Debris–slit interaction considering the particle behavior controls the barrier performance of slit structure retaining dry granular flows
Slit structures are an important mitigation measure against debris flow disasters. Common insight indicates that the size ratio of the slit and...
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Numerical and analytical analyses of the impact of monodisperse and bidisperse granular flows on a baffle structure
Baffle structure, a promising countermeasure in reducing the destruction power of rapid granular flows, needs more investigation especially with...
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Flume Modeling of Debris Flows
Debris flows are unique compared to other types of landslides (e.g., rock avalanches; dry granular flows) because their dynamics are governed by both...
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Centrifuge and DEM investigation of dry granular impacts: Effect of granular volume under high-speed impact conditions
Large-scale high-speed granular avalanches can be catastrophic; however, small-scale model tests cannot reproduce the high-speed impact effect,...
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Frictional rheology-based 3D SPH numerical method for simulating landslide dynamics of granular flow type
Granular-flow type landslides are a prevalent and intricate natural hazard that necessitates an appropriate numerical simulation method and a...
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Tsunamis generated by pyroclastic flows: experimental insights into the effect of the bulk flow density
For a better assessment of hazards related to tsunamis triggered by pyroclastic flows entering water, it is crucial to know and quantify the...
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Stress level effect on mobility of dry granular flows of angular rock fragments
Granular flows of angular rock fragments such as rock avalanches and dense pyroclastic flows are simulated numerically by means of the discrete...
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Influence of submerged sill on the deposition and energy dissipation of granular flow
The large-volume and high-speed channelized granular flows transformed from energetic rockslides and rockfalls are serious geological disasters. The...
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Three-dimensional modeling of the impact behavior of debris flows in areas affected by earthquakes
The 2008 Wenchuan earthquake triggered many landslides and caused high volumes of loose solid material to collect in gully drainage areas; over time,...
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The influence of gas pore pressure in dense granular flows: numerical simulations versus experiments and implications for pyroclastic density currents
We investigate the influence of gas pore pressure in granular flows through numerical simulations on horizontal and low-angle inclined surfaces. We...
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A numerical model of debris flows with the Voellmy model over a real terrain
In this paper, a depth-averaged numerical model is proposed to simulate the propagation of debris flows. To understand the dynamical features of...
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Flow-Driven Deformation in Granular Porous Media: Dimensionless Analysis
Fluid injection can induce mechanical deformation in granular porous media due to the elevation of internal pore fluid pressure. This gains more...
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Progressive fragmentation of granular assemblies within rockslides: Insights from discrete-continuous numerical modeling
Rock fragmentation plays a critical role in rock avalanches, yet conventional approaches such as classical granular flow models or the bonded...
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Sliding and damming properties of granular debris with different geometric configurations and grain size distributions
Granular debris plays a significant role in determining damming deposit characteristics. An in-depth understanding of how variations in grain size...
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Post-Wildfire Debris Flows
Post-wildfire debris flows pose severe hazards to communities and infrastructure near and within recently burned mountainous terrain. Intense heat of...
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Deformation and Frictional Failure of Granular Media in 3D Analog and Numerical Experiments
Frictional sliding along grain boundaries in brittle shear zones can result in the fragmentation of individual grains, which ultimately can impact...
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Energy consumption analysis of the granular run-out process: effect of particle shape and slope angle
Flow-like landslides and debris flow disasters pose great threats to the human living environment. Disaster risk control largely relies on good...
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Shear Localization and Structuring in Granular Medium Flow in Radial Channel
AbstractThe gravity flow of granular materials in axially symmetric convergent channels (V-shaped bunkers) is analyzed using the discrete element...
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Effect of unsteady flow dynamics on the impact of monodisperse and bidisperse granular flow
Protective barriers provide crucial resistance against the impact of granular flows. However, the adoption of characterized flow depth and velocity...
