Towards hydrodynamic simulations of wet particle systems

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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37 Downloads (Pure)

Abstract

This paper presents the rheology of weakly wetted granular materials in the slow frictional regime, using Discrete Element Method (DEM) simulations. In a split-bottom ring shear cell geometry a slow, quasi-static deformation leads to wide shear bands away from the walls. Dry non-cohesive and cohesive materials are compared in order to understand the effect of liquid bridge capillary forces on the macroscopic flow properties. Different liquid contents lead to different flow curves when measuring the shear stress-strain relations, helping to understand the effect of wetness on the flow of granular materials.
Original languageEnglish
Title of host publicationWCPT7
PublisherElsevier
Pages1531-1538
Number of pages8
DOIs
Publication statusPublished - 19 May 2015
Event7th World Congress on Particle Technology 2014 - Beijing, China
Duration: 19 May 201422 May 2014
Conference number: 7

Publication series

Name
PublisherElsevier
Volume102
ISSN (Print)1877-7058
ISSN (Electronic)1877-7058

Conference

Conference7th World Congress on Particle Technology 2014
Abbreviated titleWCPT 2014
CountryChina
CityBeijing
Period19/05/1422/05/14

Fingerprint

granular materials
hydrodynamics
static deformation
shear
liquid bridges
simulation
rheology
shear stress
moisture content
rings
curves
liquids
geometry
cells

Keywords

  • METIS-308199
  • IR-95649

Cite this

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title = "Towards hydrodynamic simulations of wet particle systems",
abstract = "This paper presents the rheology of weakly wetted granular materials in the slow frictional regime, using Discrete Element Method (DEM) simulations. In a split-bottom ring shear cell geometry a slow, quasi-static deformation leads to wide shear bands away from the walls. Dry non-cohesive and cohesive materials are compared in order to understand the effect of liquid bridge capillary forces on the macroscopic flow properties. Different liquid contents lead to different flow curves when measuring the shear stress-strain relations, helping to understand the effect of wetness on the flow of granular materials.",
keywords = "METIS-308199, IR-95649",
author = "Sudeshna Roy and Stefan Luding and Thomas Weinhart",
note = "New Paradigm of Particle Science and Technology Proceedings of The 7th World Congress on Particle Technology",
year = "2015",
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day = "19",
doi = "10.1016/j.proeng.2015.01.288",
language = "English",
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Roy, S, Luding, S & Weinhart, T 2015, Towards hydrodynamic simulations of wet particle systems. in WCPT7. Elsevier, pp. 1531-1538, 7th World Congress on Particle Technology 2014, Beijing, China, 19/05/14. https://doi.org/10.1016/j.proeng.2015.01.288

Towards hydrodynamic simulations of wet particle systems. / Roy, Sudeshna; Luding, Stefan; Weinhart, Thomas.

WCPT7. Elsevier, 2015. p. 1531-1538.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AU - Luding, Stefan

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AB - This paper presents the rheology of weakly wetted granular materials in the slow frictional regime, using Discrete Element Method (DEM) simulations. In a split-bottom ring shear cell geometry a slow, quasi-static deformation leads to wide shear bands away from the walls. Dry non-cohesive and cohesive materials are compared in order to understand the effect of liquid bridge capillary forces on the macroscopic flow properties. Different liquid contents lead to different flow curves when measuring the shear stress-strain relations, helping to understand the effect of wetness on the flow of granular materials.

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