Granular fountains: Convection cascade in a compartmentalized granular gas

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Meer, Devaraj van der and Weele, Ko van der and Reimann, Peter (2006) Granular fountains: Convection cascade in a compartmentalized granular gas. Physical Review E: Statistical, nonlinear, and soft matter physics, 73 (6). 061394. ISSN 1539-3755

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Abstract:This paper extends the two-compartment granular fountain [D. van der Meer, P. Reimann, K. van der Weele, and D. Lohse, Phys. Rev. Lett. 92, 184301 (2004)] to an arbitrary number of compartments: The tendency of a granular gas to form clusters is exploited to generate spontaneous convective currents, with particles going down in the well-filled compartments and going up in the diluted ones. We focus upon the bifurcation diagram of the general K-compartment system, which is constructed using a dynamical flux model and which proves to agree quantitatively with results from molecular dynamics simulations.
Item Type:Article
Copyright:© 2006 American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/59101
Official URL:http://dx.doi.org/10.1103/PhysRevE.73.061304
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