LAPSE:2021.0754
Published Article
LAPSE:2021.0754
A Discrete Element Method Study of Solids Stress in Cylindrical Columns Using MFiX
Filippo Marchelli, Renzo Di Felice
October 11, 2021
Friction phenomena play a key role in discrete element method (DEM) modeling. To analyze this aspect, we employed the open-source program MFiX to perform DEM simulations of cylindrical vertical columns filled with solid particles. These are still associated with and described by the pioneering model by the German engineer H.A. Janssen. By adapting the program’s code, we were able to gather numerous insights on the stress distribution within the solids. The column was filled with different amounts of solids and, after the system had stabilized, we assessed the pressure in the vertical and radial directions and the distribution of the friction force for all particles. An analysis of the bottom pressure for varying particle loads allowed us to infer that the program can correctly predict the expected asymptotical behavior. After a detailed assessment of the behavior of a single system, we performed a sensitivity analysis taking into account several of the variables employed in the simulations. The friction coefficient and filling rate seem to affect the final behavior the most. The program appears suitable to describe friction phenomena in such a static system.
Keywords
Coulomb friction force, discrete element method, Janssen effect, solids pressure
Suggested Citation
Marchelli F, Di Felice R. A Discrete Element Method Study of Solids Stress in Cylindrical Columns Using MFiX. (2021). LAPSE:2021.0754
Author Affiliations
Marchelli F: Department of Civil, Chemical and Environmental Engineering (DICCA), University of Genova, 16145 Genova, Italy [ORCID]
Di Felice R: Department of Civil, Chemical and Environmental Engineering (DICCA), University of Genova, 16145 Genova, Italy
Journal Name
Processes
Volume
9
Issue
1
First Page
pr9010060
Year
2020
Publication Date
2020-12-29
Published Version
ISSN
2227-9717
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Original Submission
Other Meta
PII: pr9010060, Publication Type: Journal Article
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LAPSE:2021.0754
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doi:10.3390/pr9010060
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Oct 11, 2021
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CC BY 4.0
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Oct 11, 2021
 
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Oct 11, 2021
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Original Submitter
Calvin Tsay
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