Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Moreira, J. G."'
We report the analysis of radial characteristics of the flow of granular material through a conical hopper. The discharge is simulated for various orifice sizes and hopper opening angles. Velocity profiles are measured along two radial lines from the
Externí odkaz:
http://arxiv.org/abs/1507.06223
Autor:
Alves, S G, Moreira, J G
Publikováno v:
J. Stat. Mech. (2011) P04022
We study a generalization of the Wolf-Villain (WV) interface growth model based on a probabilistic growth rule. In the WV model, particles are randomly deposited onto a substrate and subsequently move to a position nearby where the binding is stronge
Externí odkaz:
http://arxiv.org/abs/1104.0575
Publikováno v:
J. Phys. A: Math. Theor. 40 13245-13256 (2007)
We introduce a new method based on cellular automata dynamics to study stochastic growth equations. The method defines an interface growth process which depends on height differences between neighbors. The growth rule assigns a probability $p_{i}(t)=
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610511
Publikováno v:
Phys. Rev. E 71, 051402 (2005)
In this work, the transition between diffusion-limited and ballistic aggregation models was revisited using a model in which biased random walks simulate the particle trajectories. The bias is controlled by a parameter $\lambda$, which assumes the va
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504526
We study a (1+1) dimensional probabilistic cellular automaton that is closely related to the Domany-Kinzel (DKCA), but in which the update of a given site depends on the state of {\it three} sites at the previous time step. Thus, compared with the DK
Externí odkaz:
http://arxiv.org/abs/cond-mat/0210036
Autor:
da Silva, T. J., Moreira, J. G.
We simulate a growth model with restricted surface relaxation process in d=1 and d=2, where d is the dimensionality of a flat substrate. In this model, each particle can relax on the surface to a local minimum, as the Edwards-Wilkinson linear model,
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207614
Publikováno v:
PHYSICA A 295: (1-2) 64-70 JUN 1 2001
A modeling of the soil structure and surface roughness by means of the concepts of the fractal growth is presented. Two parameters are used to control the model: the fragmentation dimension, $D_f$, and the maximum mass of the deposited aggregates, $M
Externí odkaz:
http://arxiv.org/abs/cond-mat/0110476
Autor:
Atman, A. P. F., Moreira, J. G.
Publikováno v:
Eur. Phys. J. B, 16 (2000) pp. 501-505
In a roughening process, the growth exponent $\beta$ describes how the roughness $w$ grows with the time $t$: $w\sim t^{\beta}$. We determine the exponent $\beta$ of a growth process generated by the spatiotemporal patterns of the one dimensional Dom
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109443
The critical behavior at the frozen/active transition in the Domany-Kinzel stochastic cellular automaton (DKCA) is studied {\it via} a surface growth process in (1+1) dimensions. At criticality, this process presents a kinetic roughening transition;
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109441
Autor:
da Silva, T. J., Moreira, J. G.
We introduce a model that simulates a kinetic roughening process with two kinds of particles: one follows the ballistic deposition (BD) kinetic and, the other, the restricted solid-on-solid (KK) kinetic. Both of these kinetics are in the universality
Externí odkaz:
http://arxiv.org/abs/cond-mat/0012095