Effect of hydrodynamic interaction on colloidal restructuring in shear flow

被引：0

作者：

Fei, Fei ^{[1
]}

Xiong, Yan ^{[1
]}

Li, Jing ^{[1
]}

Liu, Zhao-Hui ^{[1
]}

Zheng, Chu-Guang ^{[1
]}

机构：

[1] State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan,430074, China

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2015年 / 36卷 / 10期

关键词：

Brownian movement - Shear deformation - Hydrodynamics;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In order to investigate the Effect of interparticle potential and hydrodynamic interactions on critical shear rate for colloidal breakup in shear flow, colloidal restructuring has been simulated by Brownian dynamics and Stokesian dynamics, respectively. The interparticle potential in simulations is a combination of generalized Lennard-Jones form and Yukawa potential. Results imply that the critical shear rate is determined by the difference of maximum and minimum value of potential as well as colloidal Configurations, which is also a function of interparticle potential. Therefore, critical shear rate depends on potential difference nonlinearly. When interparticle potential is sufficient intensive, and colloids are assumed rigid, it is shown that Brownian dynamics can describe the process of colloidal breakup qualitatively, though it doesn't contain hydrodynamic interactions compared to Stokesian dynamics. © 2015, Science Press. All right reserved.

引用

页码：2173 / 2177