SIMULATION OF SELF-ASSEMBLIES OF COLLOIDAL PARTICLES WITH DIFFERENT SIZES BY USING A LATTICE BOLTZMANN PSEUDO-SOLID MODEL

Gongyou Liang (), Zhong Zeng, Yu Chen (), Hirotada Ohashi and Shiyi Chen
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Gongyou Liang: Department of Systems Innovation, The University of Tokyo, Tokyo 1138656, Japan;
Zhong Zeng: Department of Engineering Mechanics, Chongqing University, Chongqing 400044, P. R. China
Yu Chen: Department of Systems Innovation, The University of Tokyo, Tokyo 1138656, Japan;
Hirotada Ohashi: Department of Systems Innovation, The University of Tokyo, Tokyo 1138656, Japan
Shiyi Chen: State Key Laboratory for Turbulence and Complex Systems, Peking University, Beijing 100871, P. R. China

International Journal of Modern Physics C (IJMPC), 2013, vol. 24, issue 12, 1-6

Abstract: Lattice Boltzmann pseudo-solid model (LB-PSM) is a newly proposed method for the efficient simulation of colloidal particles' motion in single or multiphase fluids. In this study, it is applied to the study of self-assemblies of colloidal particles with two different sizes, partially immersed in a fluid layer on a substrate. Simulation results show that the separation of different particles can emerge as the ratio of particles radii increases. Also, the influence of the thickness of fluid layer on both the assembling process and the assembled structures is investigated.

Keywords: Lattice Boltzmann method; lateral capillary forces; size-dependent separation; self-assembling process; hydrodynamic interactions; 04.25.Dm; 97.60.Jd (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1142/S0129183113400020

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