Air-driven reverse buoyancy

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

Physica A: Statistical Mechanics and its Applications, 2005, vol. 358, issue 2, 466-474

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.

Keywords: Granular matter; Vibration; Reverse buoyancy; Solid–fluid transitions (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:358:y:2005:i:2:p:466-474

DOI: 10.1016/j.physa.2005.04.019

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