ISSN:
1432-0657
Keywords:
Key words Rotating drum, Computer simulations, Cellular automata, Stratification
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
,
Natural Sciences in General
Notes:
Abstract We propose a generalisation of the cellular automaton model introduced recently by Lai, Jia and Chan [Phys. Rev. Lett. 79, 4994 (1997)] for simulating friction induced segregation in a rotating drum. Our model implements the spherical geometry of the drum explicitly. Therefore it can be used to investigate geometrical properties of the segregation phenomenon in contrast to the original version of the model. Our model reproduces the spontaneous stratification observed recently in experiments for more than half filled drums, as well as the transition to non-stratified segregation for higher rotation speeds. It predicts that stratification can also occur, if the drum is less than half filled.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100350050020
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