Air-driven reverse buoyancy

L. I. Reyes; I. Sánchez; G. Gutiérrez

doi:10.1016/j.physa.2005.04.019

Air-driven reverse buoyancy

L. I. Reyes
, I. Sánchez
, G. Gutiérrez

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Air-induced fluidization in vibrated granular beds can be responsible of the phenomenon of reverse buoyancy. We show that the air flow induced across the bed, as the gap in the bottom of the cell evolves, can fluidize the bed in a similar way as in gas-fluidized static beds and consequently a buoyancy force can arise. To quantify this mechanism we use Kroll's model.

Original language	English
Pages (from-to)	466-474
Number of pages	9
Journal	Physica A: Statistical Mechanics and its Applications
Volume	358
Issue number	2-4
DOIs	https://doi.org/10.1016/j.physa.2005.04.019
State	Published - Dec 15 2005
Externally published	Yes

ASJC Scopus Subject Areas

Statistics and Probability
Condensed Matter Physics

Keywords

Granular matter
Reverse buoyancy
Solid-fluid transitions
Vibration

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10.1016/j.physa.2005.04.019

Cite this

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title = "Air-driven reverse buoyancy",

abstract = "Air-induced fluidization in vibrated granular beds can be responsible of the phenomenon of reverse buoyancy. We show that the air flow induced across the bed, as the gap in the bottom of the cell evolves, can fluidize the bed in a similar way as in gas-fluidized static beds and consequently a buoyancy force can arise. To quantify this mechanism we use Kroll's model.",

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T1 - Air-driven reverse buoyancy

AU - Reyes, L. I.

AU - Sánchez, I.

AU - Gutiérrez, G.

PY - 2005/12/15

Y1 - 2005/12/15

N2 - Air-induced fluidization in vibrated granular beds can be responsible of the phenomenon of reverse buoyancy. We show that the air flow induced across the bed, as the gap in the bottom of the cell evolves, can fluidize the bed in a similar way as in gas-fluidized static beds and consequently a buoyancy force can arise. To quantify this mechanism we use Kroll's model.

AB - Air-induced fluidization in vibrated granular beds can be responsible of the phenomenon of reverse buoyancy. We show that the air flow induced across the bed, as the gap in the bottom of the cell evolves, can fluidize the bed in a similar way as in gas-fluidized static beds and consequently a buoyancy force can arise. To quantify this mechanism we use Kroll's model.

KW - Granular matter

KW - Reverse buoyancy

KW - Solid-fluid transitions

KW - Vibration

UR - https://www.scopus.com/pages/publications/26444472786

UR - https://www.scopus.com/pages/publications/26444472786#tab=citedBy

U2 - 10.1016/j.physa.2005.04.019

DO - 10.1016/j.physa.2005.04.019

M3 - Article

AN - SCOPUS:26444472786

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JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

IS - 2-4

ER -

Air-driven reverse buoyancy

Abstract

ASJC Scopus Subject Areas

Keywords

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