Results 21 to 30 of about 5,478,842 (309)

Numerical analysis of granular flows in a silo bed on flow regime characterization. [PDF]

open access: yesPLoS ONE, 2015
The flow characteristics of a gravity-driven dense granular flow in a granular bed with a contracted drainage orifice are studied by using discrete element method and quantitative analysis.
Xingtuan Yang   +3 more
doaj   +1 more source

On dense granular flows [PDF]

open access: yesThe European Physical Journal E, 2004
collectif paper written by the GdR Milieux divises (submitted the 12/12/03)
openaire   +4 more sources

Liquid migration in flowing granular materials [PDF]

open access: yesEPJ Web of Conferences, 2021
In partially wet granular beds, liquid migrates between particles due to collisions and contacts. This, in turn, influences the flow behaviour of the granular bed.
Hagen Thijmen   +4 more
doaj   +1 more source

Discrete element analysis of dry granular flow impact on slit dams

open access: yesLandslides, 2020
Slit dam is an open-check barrier structure widely used in mountainous regions to resist the destructive impacts of granular flows. To examine the dynamics of granular flow impact on slit dams, a numerical study by discrete element method (DEM) is ...
S. Gong   +4 more
semanticscholar   +1 more source

The flow of granular magnesia

open access: yesJournal of Pharmacy and Pharmacology, 1966
AbstractInvestigations of the flow rates of loosely packed magnesia have shown that the general equation developed by Jones & Pilpel (1966)can be applied to single component and multicomponent mixtures in the size range 0·003 to >0·2 cm. The increase in flow rate caused by mixing coarse and fine particles has been related quantitatively to ...
T M, Jones, N, Pilpel
openaire   +2 more sources

Quantitative measurement of hopper flow using MRI [PDF]

open access: yesEPJ Web of Conferences, 2021
To gain fundamental insight into granular flow behaviour, quantitative measurements of velocity and solid fraction are required. The aim of this study is to measure the solid fraction and velocity of 3D granular flows quantitively using a recently ...
Mehdizad Maral   +3 more
doaj   +1 more source

Effects of material properties on the mobility of granular flow

open access: yes, 2020
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 the ...
N. Nguyen, H. Bui, G. Nguyen
semanticscholar   +1 more source

Granular Flow–Obstacle Interaction and Granular Dam Break Using the S-H Model with the TVD-MacCormack Scheme

open access: yesApplied Sciences, 2022
An accurate second-order spatial and temporal finite-difference scheme is applied to solve the dynamics model of a depth-averaged avalanche. Within the framework of the MacCormack scheme, a total variation diminishing term supplements the corrector step ...
Hao Zhou   +7 more
doaj   +1 more source

Simple Particle Model for Low-Density Granular Flow Interacting with Ambient Fluid

open access: yesGeosciences, 2020
To understand the time evolutions of frontal speed and shape in a low-density granular flow, we propose a simple particle model. This model solves the equation of motion for each particle and simulates the time evolution of low-density granular flow ...
Hirofumi Niiya   +2 more
doaj   +1 more source

Granular Flows in Fluid

open access: yes, 2012
Underwater avalanches are a major risk to offshore structures. The mechanisms involved in the initiation and propagation of underwater granular avalanches are complex. They depend mainly on the slope angle, density, and quantity of material destabilised.
Kumar, Krishna   +2 more
openaire   +2 more sources

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