2D Automaton Simulation of Bubble Growth by Solute Diffusion in Correlated Porous Media

CARLOS FELIPE MENDOZA; RAÚL H. LÓPEZ; ANA M. VIDALES; A. DOMINGUEZ.

ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY

Springer

Año: 2005 vol. 11 p. 491 - 496

0929-5607

Abstract  Simulations of bubble growth in porous media were carried out via a 2D numerical automaton built under a set of hypotheses derived from experimental observations at pore scale. Various types of 2D numerical networks (320~ 320 sites and corresponding bonds) were used as models of porous media to study the consequences of the spatial correlation length, ƒÌBB, existing among the porous network void entities with respect to the growth of a gas cluster by solute diffusion occurring therein. The studied range was ƒÌBB∊ [0.86} 0.12, 10.63} 0.12], in lattice units. The results obtained show that bubble development is truly affected by ƒÌBB. The growth law exponent ƒÀ changes as: ƒÀ = 4.95 − 0.53 ƒÌBB+ 0.04 ƒÌ BB2, while the fractal dimension of the gas cluster body, Df, varies as: Df = 1.31 + 0.04ƒÌBB.