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The anisotropy parameter of two-dimensional equilibrium clusters of site percolation process in long-range self-affine correlated structures are studied numerically. We use a fractional Brownian Motion(FBM) statistic to produce both…

Statistical Mechanics · Physics 2008-09-01 Fatemeh Ebrahimi

We study the boundary effects in invasion percolation with and without trapping. We find that the presence of boundaries introduces a new set of surface critical exponents, as in the case of standard percolation. Numerical simulations show…

Condensed Matter · Physics 2009-10-31 A. Gabrielli , R. Cafiero , G. Caldarelli

We study the optimized version of the multiple invasion percolation model. Some topological aspects as the behavior of the acceptance profile, coordination number and vertex type abundance were investigated and compared to those of the…

Statistical Mechanics · Physics 2015-06-25 R. A. Zara , R. N. Onody

We examine the interplay between anisotropy and percolation, i.e., the spontaneous formation of a system spanning cluster in an anisotropic model. We simulate an extension of a benchmark model of continuum percolation, the Boolean model,…

Disordered Systems and Neural Networks · Physics 2017-03-08 Michael A Klatt , Gerd E Schröder-Turk , Klaus Mecke

We investigate the process of invasion percolation between two sites (injection and extraction sites) separated by a distance r in two-dimensional lattices of size L. Our results for the non-trapping invasion percolation model indicate that…

Disordered Systems and Neural Networks · Physics 2009-11-11 A. D. Araujo , T. F. Vasconcelos , A. A. Moreira , L. S. Lucena , J. S. Andrade

A new kind of invasion percolation is introduced in order to take into account the inertia of the invader fluid. The inertia strength is controlled by the number N of pores (or steps) invaded after the perimeter rupture. The new model…

Statistical Mechanics · Physics 2009-10-31 Reginaldo A. Zara , Roberto N. Onody

We study invasion percolation in two dimensions. We compare connectivity properties of the origin's invaded region to those of (a) the critical percolation cluster of the origin and (b) the incipient infinite cluster. To exhibit…

Probability · Mathematics 2009-12-09 Michael Damron , Artëm Sapozhnikov , Bálint Vágvölgyi

Shape-dependent universal crossing probabilities are studied, via Monte Carlo simulations, for bond and site directed percolation on the square lattice in the diagonal direction, at the percolation threshold. Since the system is strongly…

Statistical Mechanics · Physics 2007-05-23 L. Turban

In this paper, we investigate the invasion percolation (IP) in imperfect support in which the configuration of imperfections is considered to be correlated. Three lattice models were engaged to realize this pattern: site percolation, Ising…

Statistical Mechanics · Physics 2022-01-05 M. N. Najafi , S. Tizdast , J. Cheraghalizadeh , H. Dashti N

Clustering is a common task in machine learning, but clusters of unlabelled data can be hard to quantify. The application of clustering algorithms in chemistry is often dependant on material representation. Ascertaining the effects of…

Machine Learning · Computer Science 2023-05-29 Samantha Durdy , Michael W. Gaultois , Vladimir Gusev , Danushka Bollegala , Matthew J. Rosseinsky

We study the percolation properties of geometrical clusters defined in the overlap space of two statistically independent replicas of a square-lattice Ising model that are simulated at the same temperature. In particular, we consider two…

Statistical Mechanics · Physics 2024-02-23 Michail Akritidis , Nikolaos G. Fytas , Martin Weigel

Motivated by recent experiments, we investigate the scattering properties of percolation clusters generated by numerical simulations on a three dimensional cubic lattice. Individual clusters of given size are shown to present a fractal…

Statistical Mechanics · Physics 2022-07-12 Jean-Christian Anglès d'Auriac , Pierre-Etienne Wolf

We report and discuss, by means of pore-scale numerical simulations, the possibility of achieving a directional-dependent two-phase flow behaviour during the process of invasion of a viscous fluid into anisotropic porous media with…

Fluid Dynamics · Physics 2021-10-27 Dario Maggiolo , Francesco Picano , Federico Toschi

Using Monte Carlo simulations, we investigate how geometric percolation and electrical conductivity in suspensions of hard conducting platelets are affected by the addition of platelets and their degree of spontaneous alignment. For aspect…

Soft Condensed Matter · Physics 2020-04-08 Arshia Atashpendar , Tim Ingenbrand , Tanja Schilling

Invasion percolation is a stochastic growth model that follows a greedy algorithm. After assigning i.i.d. uniform random variables (weights) to all edges of $\mathbb{Z}^d$, the growth starts at the origin. At each step, we adjoin to the…

Probability · Mathematics 2019-04-29 Bounghun Bock , Michael Damron

Based on extensive simulations, we conjecture that critically pinned interfaces in 2-dimensional isotropic random media with short range correlations are always in the universality class of ordinary percolation. Thus, in contrast to…

Disordered Systems and Neural Networks · Physics 2018-05-23 P. Grassberger

We probe gravitational clustering in N-body simulations using geometrical descriptors sensitive to `connectedness': the genus curve, percolation and shape statistics. We find that both genus and percolation curves provide complementary…

Astrophysics · Physics 2007-05-23 V. Sahni

Using event-driven kinetic Monte-Carlo simulations we investigate the early stage of non-equilibrium surface growth in a generic model with anisotropic interactions among the adsorbed particles. Specifically, we consider a two-dimensional…

Soft Condensed Matter · Physics 2018-10-24 Thomas Martynec , Sabine H. L. Klapp

Global physical properties of random media change qualitatively at a percolation threshold, where isolated clusters merge to form one infinite connected component. The precise knowledge of percolation thresholds is thus of paramount…

Statistical Mechanics · Physics 2008-01-13 Richard A. Neher , Klaus Mecke , Herbert Wagner

We investigate the percolation transition of aligned, overlapping, anisotropic shapes on lattices. Using the recently proposed lattice version of excluded volume theory, we show that shape-anisotropy leads to some intriguing consequences…

Statistical Mechanics · Physics 2025-01-13 Jasna C. K. , V. Sasidevan
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