Results 11 to 20 of about 5,905,435 (301)

DEM study on the effect of particle shape on the shear behaviour of granular materials

open access: yesComputational Particle Mechanics, 2023
This study investigates the effects of particle convexity, sphericity and aspect ratio (AR) on the behaviour of sheared granular materials using two-dimensional discrete element method simulations.
Peter Adesina   +2 more
semanticscholar   +1 more source

Shape formation by programmable particles [PDF]

open access: yesDistributed Computing, 2019
Shape formation is a basic distributed problem for systems of computational mobile entities. Intensively studied for systems of autonomous mobile robots, it has recently been investigated in the realm of programmable matter. Namely, it has been studied in the geometric Amoebot model, where the anonymous entities, called particles, operate on a ...
Di Luna G. A.   +4 more
openaire   +5 more sources

A fully resolved SPH-DEM method for heterogeneous suspensions with arbitrary particle shape

open access: yesPowder Technology, 2021
The study on fluid-solid interaction in heterogeneous suspensions is essential for theoretical research and engineering practice. In this paper, a three-dimensional fully resolved SPH-DEM method is presented to model suspensions with non-Newtonian fluids
Chong Peng   +3 more
semanticscholar   +1 more source

Shape Recognition of DMT Airborne Cloud Particle Images and Its Application

open access: yes应用气象学报, 2021
Currently, the most direct and effective way to obtain cloud precipitation microphysical characteristics is from in-situ measurements acquired by airborne imaging probes.
Zhang Rong   +5 more
doaj   +1 more source

Shape Characteristics of Coral Sand from the South China Sea

open access: yesJournal of Marine Science and Engineering, 2020
The particle shape of coral sand is a crucial factor that affects its accumulation characteristics. Two-dimensional particle images of coral sand with different particle sizes were obtained through optical imaging, and the basic size parameters of ...
Xing Wang   +4 more
doaj   +1 more source

Impact of sample scaling on shear strength: coupled effects of grains size and shape [PDF]

open access: yesEPJ Web of Conferences, 2021
Size limitations of geotechnical testing equipment often require that samples of coarse granular materials have to be scaled in order to be tested in the laboratory.
Linero-Molina Sandra   +5 more
doaj   +1 more source

Prediction of Abrasive and Impact Wear Due to Multi-Shaped Particles in a Centrifugal Pump via CFD-DEM Coupling Method

open access: yesEnergies, 2021
Since solid particles suspended in the fluid can cause wear in centrifugal pumps, intensive attention has been focused on the numerical prediction for the wear of flow parts in centrifugal pumps.
Cheng Tang   +3 more
doaj   +1 more source

Evaluating the Influence of Sand Particle Morphology on Shear Strength: A Comparison of Experimental and Machine Learning Approaches

open access: yesApplied Sciences, 2023
Particulate materials, such as sandy soil, are everywhere in nature and form the basis for many engineering applications. The aim of this research is to investigate the particle shape, size, and gradation of sandy soil and how they relate to shear ...
Firas Daghistani, Hossam Abuel-Naga
doaj   +1 more source

Effects of Particle Geometry for PLGA-Based Nanoparticles: Preparation and In Vitro/In Vivo Evaluation

open access: yesPharmaceutics, 2023
The physicochemical properties (size, shape, zeta potential, porosity, elasticity, etc.) of nanocarriers influence their biological behavior directly, which may result in alterations of the therapeutic outcome.
Meryem Kaplan   +5 more
doaj   +1 more source

Effect of particle shape on the progressive failure of shield tunnel face in granular soils by coupled FDM-DEM method

open access: yesTunnelling and Underground Space Technology, 2020
The face failure of tunnels has been extensively studied. However, the effect of particle shape on the failure process still remains unclear. In this paper, the progressive face failure of a shield tunnel in sand is analyzed with coupled discrete element
Z. Yin, Pei Wang, Fengshou Zhang
semanticscholar   +1 more source

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