화학공학소재연구정보센터
Journal of Colloid and Interface Science, Vol.296, No.2, 737-742, 2006
Diffusion coefficient of Brownian particle in rough micro-channel
This study examines the feasibility of using of the lattice Boltzmann method to determine how the surface roughness of a quadrate channel affects the diffusion coefficient of Brownian particle(s). The surface was represented by a regular array of spheres. Surface roughness reduced the diffusion coefficient of the Brownian particle(s) because of a change in the velocity autocorrelation function decay and in pressure. Additionally, the neighboring particles increased the diffusion coefficient of Brownian particle. (c) 2005 Elsevier Inc. All rights reserved.