Year: 1998
Type: article
Abstract: We consider numerically the front propagation in a three-dimensional, diffusion-controlled A + B → 2 A autocatalytic reaction. We show that the interplay between local and global ordering phenomena strongly affects the reaction kinetics, and that it leads to the breakdown of the classical continuous scheme (described by the Fisher equation) even at quite small concentrations of reactants. Discreteness aspects lead to considerable deviations of the simulated behavior of chemical fronts from the continuous scheme predictions, especially in what the fronts' structure and their propagation velocities are concerned.
Source: Europhysics Letters (EPL)
Authors: J Mai, I. M Sokolov, A Blumen
Institution: University of Freiburg
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1980799082