Comparison of different capillary bridge models for application in the discrete element method
Weakly wetted granular material is the subject of many studies. Several formulations were proposed to calculate the capillary forces between wet particles. In this paper some of such models have been implemented in a DEM-framework, and simulation results were compared to experimental measurements. A...
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Published in | Granular matter Vol. 16; no. 6; pp. 911 - 920 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.12.2014
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Weakly wetted granular material is the subject of many studies. Several formulations were proposed to calculate the capillary forces between wet particles. In this paper some of such models have been implemented in a DEM-framework, and simulation results were compared to experimental measurements. Also, the influence of capillary model type on macro parameters like local shear viscosity and cohesive parameters of sheared material have been investigated through the simulation of spherical beads using a DEM-model of a split-bottom shear-cell. It was concluded that the water content, simulated with the help of capillary bridge models, changes the macro-properties of the simulated granular material. Different capillary bridge models do not influence the macroscopic results visibly. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1434-5021 1434-7636 |
DOI: | 10.1007/s10035-014-0527-z |