

Reversible random sequential adsorption of objects of various shapes on a two-dimensional triangular lattice is studied numerically by means of Monte Carlo simulations. The growth of the coverage ρ (t) above the jamming limit to its steady-state value ρ is described by a pattern ρ (t) = ρ -Δρ Eβ [- (tτ)β], where Eβ denotes the Mittag-Leffler function of order β (0,1). The parameter τ is found to decay with the desorption probability P- according to a power law τ=A P- -γ. The exponent γ is the same for all shapes, γ=1. 29±0.01, but the parameter A depends only on the order of symmetry axis of the shape. Finally, we present the possible relevance of the model to the compaction of granular objects of various shapes. © 2005 The American Physical Society.
| Engineering controlled terms: | AdsorptionComputer simulationDesorptionJammingMonte Carlo methodsTwo dimensional |
|---|---|
| Engineering uncontrolled terms: | Desorption probabilityJamming limitsPower lawsTriangular lattices |
| Engineering main heading: | Lattice vibrations |
Budinski-Petković, L.; Faculty of Engineering, Trg D. Obradovića 6, Yugoslavia
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