Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations

A series of the DEM simulations of the outflow of wooden spheres from a flat-bottomed container was reported, considering the maximum diameter to arrest the flow. Numerical simulations of the discharge process were performed, and the micro-mechanics of the discharged particles were described. The ef...

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Autores principales:	Rafał Kobyłka, Joanna Wiącek, Piotr Parafiniuk, Józef Horabik, Maciej Bańda, Mateusz Stasiak, Marek Molenda
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	clogging silo granular material flow experiment discrete element method Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/b8cadbb1295640dcaa7a584c6571d67c
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spelling	oai:doaj.org-article:b8cadbb1295640dcaa7a584c6571d67c2021-11-25T18:49:51ZDischarge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations10.3390/pr91118602227-9717https://doaj.org/article/b8cadbb1295640dcaa7a584c6571d67c2021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1860https://doaj.org/toc/2227-9717A series of the DEM simulations of the outflow of wooden spheres from a flat-bottomed container was reported, considering the maximum diameter to arrest the flow. Numerical simulations of the discharge process were performed, and the micro-mechanics of the discharged particles were described. The effect of the sliding friction coefficient between particles, rolling friction coefficient, and modulus of elasticity of particles on the clogging process was investigated. The results of the simulations of the mass flow rate of spheres have shown a fairly close agreement with the experimental results. The real particles of wood were not perfectly spherical, their properties were anisotropic, and their frictional properties were non-homogenously distributed on the surface. Nevertheless, these deviations from ideal conditions did not produce a considerable discrepancy in the results. No direct relationship between the interparticle friction and the clogging was found; however, a relationship between the stability of the dome formed at flow arrest and the rolling friction was observed. An increase in Young’s modulus of particles by two orders of magnitude did not affect the clogging process, but a slightly higher probability of clogging was found for softer particles.Rafał KobyłkaJoanna WiącekPiotr ParafiniukJózef HorabikMaciej BańdaMateusz StasiakMarek MolendaMDPI AGarticlecloggingsilogranular materialflowexperimentdiscrete element methodChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1860, p 1860 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	clogging silo granular material flow experiment discrete element method Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	clogging silo granular material flow experiment discrete element method Chemical technology TP1-1185 Chemistry QD1-999 Rafał Kobyłka Joanna Wiącek Piotr Parafiniuk Józef Horabik Maciej Bańda Mateusz Stasiak Marek Molenda Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations
description	A series of the DEM simulations of the outflow of wooden spheres from a flat-bottomed container was reported, considering the maximum diameter to arrest the flow. Numerical simulations of the discharge process were performed, and the micro-mechanics of the discharged particles were described. The effect of the sliding friction coefficient between particles, rolling friction coefficient, and modulus of elasticity of particles on the clogging process was investigated. The results of the simulations of the mass flow rate of spheres have shown a fairly close agreement with the experimental results. The real particles of wood were not perfectly spherical, their properties were anisotropic, and their frictional properties were non-homogenously distributed on the surface. Nevertheless, these deviations from ideal conditions did not produce a considerable discrepancy in the results. No direct relationship between the interparticle friction and the clogging was found; however, a relationship between the stability of the dome formed at flow arrest and the rolling friction was observed. An increase in Young’s modulus of particles by two orders of magnitude did not affect the clogging process, but a slightly higher probability of clogging was found for softer particles.
format	article
author	Rafał Kobyłka Joanna Wiącek Piotr Parafiniuk Józef Horabik Maciej Bańda Mateusz Stasiak Marek Molenda
author_facet	Rafał Kobyłka Joanna Wiącek Piotr Parafiniuk Józef Horabik Maciej Bańda Mateusz Stasiak Marek Molenda
author_sort	Rafał Kobyłka
title	Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations
title_short	Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations
title_full	Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations
title_fullStr	Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations
title_full_unstemmed	Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations
title_sort	discharge flow of spherical particles from a cylindrical bin: experiment and dem simulations
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b8cadbb1295640dcaa7a584c6571d67c
work_keys_str_mv	AT rafałkobyłka dischargeflowofsphericalparticlesfromacylindricalbinexperimentanddemsimulations AT joannawiacek dischargeflowofsphericalparticlesfromacylindricalbinexperimentanddemsimulations AT piotrparafiniuk dischargeflowofsphericalparticlesfromacylindricalbinexperimentanddemsimulations AT jozefhorabik dischargeflowofsphericalparticlesfromacylindricalbinexperimentanddemsimulations AT maciejbanda dischargeflowofsphericalparticlesfromacylindricalbinexperimentanddemsimulations AT mateuszstasiak dischargeflowofsphericalparticlesfromacylindricalbinexperimentanddemsimulations AT marekmolenda dischargeflowofsphericalparticlesfromacylindricalbinexperimentanddemsimulations
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Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations

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