Author
Bruna, M
Chapman, S
Journal title
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
DOI
10.1103/PhysRevE.85.011103
Issue
1
Volume
85
Last updated
2024-03-17T09:17:37.737+00:00
Abstract
Excluded-volume effects can play an important role in determining transport properties in diffusion of particles. Here, the diffusion of finite-sized hard-core interacting particles in two or three dimensions is considered systematically using the method of matched asymptotic expansions. The result is a nonlinear diffusion equation for the one-particle distribution function, with excluded-volume effects enhancing the overall collective diffusion rate. An expression for the effective (collective) diffusion coefficient is obtained. Stochastic simulations of the full particle system are shown to compare well with the solution of this equation for two examples. © 2012 American Physical Society.
Symplectic ID
254520
Favourite
Off
Publication type
Journal Article
Publication date
03 Jan 2012
Please contact us with feedback and comments about this page. Created on 18 Feb 2012 - 08:10.