Granular Leidenfrost effect: Experiment and theory of floating particle clusters

Peter Eshuis; Ko van der Weele; Devaraj van der Meer; Detlef  Lohse

doi:10.1103/PhysRevLett.95.258001

Granular Leidenfrost effect: Experiment and theory of floating particle clusters

Peter Eshuis, Ko van der Weele, Devaraj van der Meer, Detlef Lohse

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Abstract

Granular material is vertically vibrated in a 2D container: above a critical shaking strength, and for a sufficient number of beads, a crystalline cluster is elevated and supported by a dilute gaseous layer of fast beads underneath. We call this phenomenon the granular Leidenfrost effect. The experimental observations are explained by a hydrodynamic model featuring three dimensionless control parameters: the energy input S, the number of particle layers F, and the inelasticity of the particle collisions ". The S;F phase diagram, in which the Leidenfrost state lies between the purely solid and gas phases, shows accurate agreement between experiment and theory.

Original language	English
Article number	258001
Number of pages	4
Journal	Physical review letters
Volume	95
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.95.258001
Publication status	Published - 2005

Keywords

IR-54103
METIS-227775

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Eshuis2005granularFinal published version, 497 KB

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abstract = "Granular material is vertically vibrated in a 2D container: above a critical shaking strength, and for a sufficient number of beads, a crystalline cluster is elevated and supported by a dilute gaseous layer of fast beads underneath. We call this phenomenon the granular Leidenfrost effect. The experimental observations are explained by a hydrodynamic model featuring three dimensionless control parameters: the energy input S, the number of particle layers F, and the inelasticity of the particle collisions {"}. The S;F phase diagram, in which the Leidenfrost state lies between the purely solid and gas phases, shows accurate agreement between experiment and theory.",

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AU - Eshuis, Peter

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AU - Lohse, Detlef

PY - 2005

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AB - Granular material is vertically vibrated in a 2D container: above a critical shaking strength, and for a sufficient number of beads, a crystalline cluster is elevated and supported by a dilute gaseous layer of fast beads underneath. We call this phenomenon the granular Leidenfrost effect. The experimental observations are explained by a hydrodynamic model featuring three dimensionless control parameters: the energy input S, the number of particle layers F, and the inelasticity of the particle collisions ". The S;F phase diagram, in which the Leidenfrost state lies between the purely solid and gas phases, shows accurate agreement between experiment and theory.

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KW - METIS-227775

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Granular Leidenfrost effect: Experiment and theory of floating particle clusters

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Keywords

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