Farkas, Zeno; Szalai, Ferenc; Wolf, Dietrich; Vicsek, Tamas:
Segregation of granular binary mixtures by a ratchet mechanism
2002
In: Physical Review / E, Statistical, nonlinear and soft matter physics, Jg. 65 (2002), Heft 2, S. 022301
Artikel/Aufsatz in Zeitschrift / Fach: Physik
Titel:
Segregation of granular binary mixtures by a ratchet mechanism
Autor(in):
Farkas, Zeno; Szalai, Ferenc; Wolf, Dietrich im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Vicsek, Tamas
Erscheinungsjahr
2002
Erschienen in:
Physical Review / E, Statistical, nonlinear and soft matter physics, Jg. 65 (2002), Heft 2, S. 022301
ISSN
ISSN
DOI
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Abstract:

We report on a segregation scheme for granular binary mixtures, where the segregation is performed by a ratchet mechanism realized by a vertically shaken asymmetric sawtooth-shaped base in a quasi-two-dimensional box. We have studied this system by computer simulations and found that most binary mixtures can be segregated using an appropriately chosen ratchet, even when the particles in the two components have the same size and differ only in their normal restitution coefficient or friction coefficient. These results suggest that the components of otherwise nonsegregating granular mixtures may be separated using our method.