Coarse-grained DEM study of solids sedimentation in water
The so-called coarse-grained discrete element method (DEM) is used here for efficient
simulations of large-scale particle systems as its effectiveness has been successfully verified …
simulations of large-scale particle systems as its effectiveness has been successfully verified …
The contribution of experimental volcanology to the study of the physics of eruptive processes, and related scaling issues: A review
O Roche, G Carazzo - Journal of Volcanology and Geothermal Research, 2019 - Elsevier
The experimental approach has become a major tool increasingly used by volcanologists in
recent decades to investigate the physics of eruptive processes in complement to field and …
recent decades to investigate the physics of eruptive processes in complement to field and …
The reduction of friction in long runout landslides as an emergent phenomenon
BC Johnson, CS Campbell… - Journal of Geophysical …, 2016 - Wiley Online Library
Abstract Campbell et al.(1995) modeled long runout landslides as granular flow using a soft
particle code. Their model essentially simulates landslides from first principles, and although …
particle code. Their model essentially simulates landslides from first principles, and although …
Generation of air lubrication within pyroclastic density currents
Pyroclastic density currents are highly dangerous ground-hugging currents from volcanoes
that cause> 50% of volcanic fatalities globally. These hot mixtures of volcanic particles and …
that cause> 50% of volcanic fatalities globally. These hot mixtures of volcanic particles and …
Effective wall friction in wall-bounded 3D dense granular flows
We report numerical simulations on granular shear flows confined between two flat but
frictional sidewalls. Novel regimes differing by their strain localization features are observed …
frictional sidewalls. Novel regimes differing by their strain localization features are observed …
Compressibility regularizes the 𝜇 (I)-rheology for dense granular flows
The. Moreover, we show that the ill-posed domain defined by Barker et al.(J. Fluid Mech.,
vol. 779, 2015, pp. 794–818) transforms into a domain where the flow is unstable but …
vol. 779, 2015, pp. 794–818) transforms into a domain where the flow is unstable but …
Local rheology relation with variable yield stress ratio across dry, wet, dense, and dilute granular flows
Dry, wet, dense, and dilute granular flows have been previously considered fundamentally
different and thus described by distinct, and in many cases incompatible, rheologies. We …
different and thus described by distinct, and in many cases incompatible, rheologies. We …
[PDF][PDF] A new insight to the scaling-law fluid associated with the Mandelbrot scaling law
XJ Yang, JG Liu - Thermal Science, 2021 - doiserbia.nb.rs
This paper addresses a non-traditional approach for the scaling-law fluid-flows described by
fractal scaling-law vector calculus associated with the Mandelbrot scaling law. Their …
fractal scaling-law vector calculus associated with the Mandelbrot scaling law. Their …
Continuum modeling of pressure‐balanced and fluidized granular flows in 2‐D: Comparison with glass bead experiments and implications for concentrated …
Granular flows are found across multiple geophysical environments and include pyroclastic
density currents, debris flows, and avalanches, among others. The key to describing …
density currents, debris flows, and avalanches, among others. The key to describing …
Multiple-contact discrete-element model for simulating dense granular media
This article presents a new force model for performing quantitative simulations of dense
granular materials. Interactions between multiple contacts (MC) on the same grain are …
granular materials. Interactions between multiple contacts (MC) on the same grain are …