Friction controls even submerged granular flows

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Friction controls even submerged granular flows. / Koivisto, Juha; Korhonen, Marko; Alava, Mikko; Ortiz, Carlos P.; Durian, Douglas J.; Puisto, Antti.

julkaisussa: Soft Matter, Vuosikerta 13, Nro 41, 15.09.2017, s. 7657-7664.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Koivisto, Juha ; Korhonen, Marko ; Alava, Mikko ; Ortiz, Carlos P. ; Durian, Douglas J. ; Puisto, Antti. / Friction controls even submerged granular flows. Julkaisussa: Soft Matter. 2017 ; Vuosikerta 13, Nro 41. Sivut 7657-7664.

Bibtex - Lataa

@article{ffa9d3482e424a8b8f5326685bfa2ba8,
title = "Friction controls even submerged granular flows",
abstract = "We investigate the coupling between the interstitial medium and granular particles by studying the hopper flow of dry and submerged systems experimentally and numerically. In accordance with earlier studies, we find that the dry hopper empties at a constant rate. However, in the submerged system we observe the surging of the flow rate. We model both systems using the discrete element method, which we couple with computational fluid dynamics in the case of a submerged hopper. We are able to match the simulations and the experiments with good accuracy by fitting the particle–particle contact frictionfor each system separately. Submerging the hopper changes the particle–particle contact friction from µvacuum = 0.15 to µsub = 0.13, while all the other simulation parameters remain the same.",
author = "Juha Koivisto and Marko Korhonen and Mikko Alava and Ortiz, {Carlos P.} and Durian, {Douglas J.} and Antti Puisto",
year = "2017",
month = "9",
day = "15",
doi = "10.1039/C7SM00806F",
language = "English",
volume = "13",
pages = "7657--7664",
journal = "Soft Matter",
issn = "1744-683X",
number = "41",

}

RIS - Lataa

TY - JOUR

T1 - Friction controls even submerged granular flows

AU - Koivisto, Juha

AU - Korhonen, Marko

AU - Alava, Mikko

AU - Ortiz, Carlos P.

AU - Durian, Douglas J.

AU - Puisto, Antti

PY - 2017/9/15

Y1 - 2017/9/15

N2 - We investigate the coupling between the interstitial medium and granular particles by studying the hopper flow of dry and submerged systems experimentally and numerically. In accordance with earlier studies, we find that the dry hopper empties at a constant rate. However, in the submerged system we observe the surging of the flow rate. We model both systems using the discrete element method, which we couple with computational fluid dynamics in the case of a submerged hopper. We are able to match the simulations and the experiments with good accuracy by fitting the particle–particle contact frictionfor each system separately. Submerging the hopper changes the particle–particle contact friction from µvacuum = 0.15 to µsub = 0.13, while all the other simulation parameters remain the same.

AB - We investigate the coupling between the interstitial medium and granular particles by studying the hopper flow of dry and submerged systems experimentally and numerically. In accordance with earlier studies, we find that the dry hopper empties at a constant rate. However, in the submerged system we observe the surging of the flow rate. We model both systems using the discrete element method, which we couple with computational fluid dynamics in the case of a submerged hopper. We are able to match the simulations and the experiments with good accuracy by fitting the particle–particle contact frictionfor each system separately. Submerging the hopper changes the particle–particle contact friction from µvacuum = 0.15 to µsub = 0.13, while all the other simulation parameters remain the same.

U2 - 10.1039/C7SM00806F

DO - 10.1039/C7SM00806F

M3 - Article

VL - 13

SP - 7657

EP - 7664

JO - Soft Matter

JF - Soft Matter

SN - 1744-683X

IS - 41

ER -

ID: 15861432