DEM Modeling of a Flexible Barrier Impacted by a Dry Granular Flow
Sign Up to like & getrecommendations! Published in 2017 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-017-1286-z
Abstract: Flexible barriers are widely used as protection structures against natural hazards in mountainous regions, in particular for containing granular materials such as debris flows, snow avalanches and rock slides. This article presents a discrete element… read more here.
Keywords: barrier; granular flow; flexible barrier; modeling flexible ... See more keywords
Effects of material properties on the mobility of granular flow
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DOI: 10.1007/s10035-020-01024-y
Abstract: In this study, we investigate the influence of material properties on the mobility of granular flow through granular column collapse experiments using the Smooth Particle Hydrodynamics method and a continuum constitutive model capable of describing… read more here.
Keywords: run distance; granular flow; properties mobility; mobility granular ... See more keywords
A Stick-Slip Model Based on Granular Flow Theory
Sign Up to like & getrecommendations! Published in 2018 at "Tribology Letters"
DOI: 10.1007/s11249-018-1119-6
Abstract: It is well known that stick-slip phenomena are prevalent in all types of mechanical systems and present one of the greater challenges to tribology. Stick-slip is widely studied and occurs at length scales from kilometers… read more here.
Keywords: stick slip; slip; granular flow; tribology ... See more keywords
Numerical investigation of the mechanism of granular flow impact on rigid control structures
Sign Up to like & getrecommendations! Published in 2021 at "Acta Geotechnica"
DOI: 10.1007/s11440-021-01162-4
Abstract: Baffles and check-dam systems are often used as granular flow (rock avalanches, debris flows, etc.) control structures in regions prone to dangerous geological hazards leading to massive landslides. This paper explores the use of numerical… read more here.
Keywords: rigid control; check dam; granular flow; numerical investigation ... See more keywords
Research on the Entrainment of Path Material by the Granular Flow
Sign Up to like & getrecommendations! Published in 2019 at "KSCE Journal of Civil Engineering"
DOI: 10.1007/s12205-019-1105-z
Abstract: The experiment and numerical simulation were used to study the entrainment of path material by the granular flow. The effects of several factors on the entrainment were observed through the experiment. Research results show that… read more here.
Keywords: entrainment area; granular flow; entrainment path; flow ... See more keywords
Influence of particle packed pattern on the transient granular flow in a wedge-shaped hopper
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Powder Technology"
DOI: 10.1016/j.apt.2019.11.022
Abstract: Abstract A hopper has very wide and vital applications in handing the granular materials in daily life and industrial production, and the full understanding of the granular flow inside a hopper is of great importance… read more here.
Keywords: packed pattern; granular flow; influence particle; particle packed ... See more keywords
DEM study of monodisperse granular flow in a pipe
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Powder Technology"
DOI: 10.1016/j.apt.2020.08.028
Abstract: Abstract Flow of granular material through a pipe has several industrial applications but maintaining a uniform mass flux is quite challenging. In this work, monodisperse granular flow (non-turbulent and non-dense phase particle transport) through a… read more here.
Keywords: ratio; monodisperse granular; granular flow; pipe ... See more keywords
Nonlinear Time Series Analysis of Avalanching Granular Flow Data
Sign Up to like & getrecommendations! Published in 2019 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2019.09.193
Abstract: Abstract Dry cohesive granular flow can show pronounced nonlinear behaviour, which needs to be identified prior to the design of bulk solids handling systems. Laboratory tests yield time series data representing the flow behaviour of… read more here.
Keywords: granular flow; nonlinear time; time series; time ... See more keywords
Numerical prediction of cuttings transport behavior in well drilling using kinetic theory of granular flow
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2017.11.028
Abstract: Abstract The cuttings transport during well drilling was numerically simulated based on kinetic theory of granular flow in combination with sliding mesh for drill pipe rotation. The power-law model was implemented to describe the rheological… read more here.
Keywords: cuttings transport; granular flow; transport; well drilling ... See more keywords
Experimental investigation on granular flow past baffle piles and numerical simulation using a μ(I)-rheology-based approach
Sign Up to like & getrecommendations! Published in 2020 at "Powder Technology"
DOI: 10.1016/j.powtec.2019.09.069
Abstract: Abstract We set up a laboratory-scale installation and conducted seven sets of tests with varying baffle pile layouts and grain sizes. To reproduce the experiments, a depth-averaged avalanche dynamic model is developed adopting μ(I) rheology.… read more here.
Keywords: experimental investigation; granular flow; rheology; investigation granular ... See more keywords
Image-based prediction of granular flow behaviors in a wedge-shaped hopper by combing DEM and deep learning methods
Sign Up to like & getrecommendations! Published in 2021 at "Powder Technology"
DOI: 10.1016/j.powtec.2021.01.041
Abstract: Abstract Granular flow has solid-, liquid-, or even gas-like behaviors, which can be described through discrete element method (DEM)-based simulations. Although the DEM simulation has advantages in studying particle-scale information, it is computationally intensive. Alternatively,… read more here.
Keywords: image based; dem deep; granular flow; image ... See more keywords