Pattern transitions in a granular fluid system

Bjørnar Sandnes; Henning Arendt Knudsen; Eirik Grude Flekkøy; K. J. Måløy

doi:10.1063/1.3179824

Pattern transitions in a granular fluid system

Bjørnar Sandnes^*, Henning Arendt Knudsen, Eirik Grude Flekkøy, K. J. Måløy

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

A branching labyrinth of granular material emerges when a confined granular fluid system is slowly drained. From a series of experiments, simulations and theoretical modeling, we explain the mechanism for the pattern formation in terms of the forces involved. We further show that the granular fluid system undergoes a series of transitions whereby new types of patterns develop as the volume fraction of granular material is increased. A balloon pattern is demonstrated, generated by the sudden inflation of air through narrow necks in the densely packed granular front.

Original language	English
Title of host publication	Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media
Pages	1051-1054
Number of pages	4
Volume	1145
DOIs	https://doi.org/10.1063/1.3179824
Publication status	Published - 2009
Event	6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009 - Golden, CO, United States Duration: 13 Jul 2009 → 17 Jul 2009

Other

Other	6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009
Country/Territory	United States
City	Golden, CO
Period	13/07/09 → 17/07/09

Keywords

Drying
Granular media
Instability
Labyrinth
Non-equilibrium
Pattern formation
Phase transitions

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10.1063/1.3179824

Cite this

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title = "Pattern transitions in a granular fluid system",

abstract = "A branching labyrinth of granular material emerges when a confined granular fluid system is slowly drained. From a series of experiments, simulations and theoretical modeling, we explain the mechanism for the pattern formation in terms of the forces involved. We further show that the granular fluid system undergoes a series of transitions whereby new types of patterns develop as the volume fraction of granular material is increased. A balloon pattern is demonstrated, generated by the sudden inflation of air through narrow necks in the densely packed granular front.",

keywords = "Drying, Granular media, Instability, Labyrinth, Non-equilibrium, Pattern formation, Phase transitions",

author = "Bj{\o}rnar Sandnes and Knudsen, {Henning Arendt} and Flekk{\o}y, {Eirik Grude} and M{\aa}l{\o}y, {K. J.}",

year = "2009",

doi = "10.1063/1.3179824",

language = "English",

isbn = "9780735406827",

volume = "1145",

pages = "1051--1054",

booktitle = "Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media",

note = "6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009 ; Conference date: 13-07-2009 Through 17-07-2009",

}

Sandnes, B, Knudsen, HA, Flekkøy, EG & Måløy, KJ 2009, Pattern transitions in a granular fluid system. in Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media. vol. 1145, pp. 1051-1054, 6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009, Golden, CO, United States, 13/07/09. https://doi.org/10.1063/1.3179824

Pattern transitions in a granular fluid system. / Sandnes, Bjørnar; Knudsen, Henning Arendt; Flekkøy, Eirik Grude et al.
Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media. Vol. 1145 2009. p. 1051-1054.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - Pattern transitions in a granular fluid system

AU - Sandnes, Bjørnar

AU - Knudsen, Henning Arendt

AU - Flekkøy, Eirik Grude

AU - Måløy, K. J.

PY - 2009

Y1 - 2009

N2 - A branching labyrinth of granular material emerges when a confined granular fluid system is slowly drained. From a series of experiments, simulations and theoretical modeling, we explain the mechanism for the pattern formation in terms of the forces involved. We further show that the granular fluid system undergoes a series of transitions whereby new types of patterns develop as the volume fraction of granular material is increased. A balloon pattern is demonstrated, generated by the sudden inflation of air through narrow necks in the densely packed granular front.

AB - A branching labyrinth of granular material emerges when a confined granular fluid system is slowly drained. From a series of experiments, simulations and theoretical modeling, we explain the mechanism for the pattern formation in terms of the forces involved. We further show that the granular fluid system undergoes a series of transitions whereby new types of patterns develop as the volume fraction of granular material is increased. A balloon pattern is demonstrated, generated by the sudden inflation of air through narrow necks in the densely packed granular front.

KW - Drying

KW - Granular media

KW - Instability

KW - Labyrinth

KW - Non-equilibrium

KW - Pattern formation

KW - Phase transitions

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DO - 10.1063/1.3179824

M3 - Conference proceeding contribution

AN - SCOPUS:70450176210

SN - 9780735406827

VL - 1145

SP - 1051

EP - 1054

BT - Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media

T2 - 6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009

Y2 - 13 July 2009 through 17 July 2009

ER -

Pattern transitions in a granular fluid system

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