张伟Weir Zhang

副教授

副教授 硕士生导师

所在单位:材料与物理学院

学历:博士研究生毕业

论文成果

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Spatial Cross-Correlated Diffusion of Colloids under Shear Flow

发布时间:2021-01-26 点击次数:

影响因子:3.702
DOI码:10.1021/acs.langmuir.8b01803
发表刊物:Langmuir (JCR Q2区,Top期刊)
摘要:The spatial cross-correlated diffusion of colloidal particles is often used as an essential tool to study the dynamic properties of a fluid because it directly describes the hydrodynamic interaction between two particles in a fluid. However, the experimental measurement of cross-correlated diffusion can be substantially modified by even a weak shear flow. In this work, the effect of a shear flow on spatial cross-correlated diffusion is demonstrated using experimental measurements that show a clear dependence on pair angles. An analytical solution is proposed to explain the experimental observations. A numerical simulation is performed to systemically demonstrate the influence of shear flow on spatial cross-correlated diffusion. The results of the experiment, theoretical analysis, and numerical simulation agree well with each other. Therefore, this research provides a sensitive experimental method to determine the weak shear flow in any quasi-two-dimensional fluid systems.
第一作者:Na Li
合写作者:Wei Zhang,Zehui Jiang,Wei Chen
卷号:34
期号:36
页面范围:10537-10542
是否译文:
发表时间:2018-09-11
收录刊物:SCI