The effect of shear flow on the rotational diffusion of a single axisymmetric particle
The effect of shear flow on the rotational diffusion of a single axisymmetric particle
复制标题
剪切流对单个轴对称颗粒旋转扩散的影响
DOI:
10.1017/jfm.2015.186
复制
发表时间:
2015
影响因子:
3.7
通讯作者:
Cohen, Itai
中科院分区:
文献类型:
--
作者:
Leahy, Brian D.;Koch, Donald L.;Cohen, Itai
Understanding the orientation dynamics of anisotropic colloidal particles is important for suspension rheology and particle self-assembly. However, even for the simplest case of dilute suspensions in shear flow, the orientation dynamics of non-spherical Brownian particles are poorly understood. Here we analytically calculate the time-dependent orientation distributions for non-spherical axisymmetric particles confined to rotate in the flow–gradient plane, in the limit of small but non-zero Brownian diffusivity. For continuous shear, despite the complicated dynamics arising from the particle rotations, we find a coordinate change that maps the orientation dynamics to a diffusion equation with a remarkably simple ratio of the enhanced rotary diffusivity to the zero shear diffusion: .
登录
查看更多内容
影响因子:
3.3
作者:
Miguel A. Bibbó;S. Dinh;R. Armstrong
通讯作者:
R. Armstrong
影响因子:
9.9
作者:
H. Brenner
通讯作者:
H. Brenner
影响因子:
2.9
作者:
P. S. Hubbard
通讯作者:
P. S. Hubbard
DOI:
10.1122/1.549275
发表时间:
1972-03
期刊:
--
影响因子:
--
作者:
W. E. Stewart;J. P. Sørensen
通讯作者:
W. E. Stewart;J. P. Sørensen
影响因子:
17.1
作者:
Naveen K. Reddy;J. Pérez‐Juste;I. Pastoriza‐Santos;P. Lang;J. Dhont;L. Liz‐Marzán;J. Vermant
通讯作者:
J. Vermant