Publications in Scientific Journals:
A. Zöttl, K. Klop, A. K. Balin, Y. Gao, J. M. Yeomans, D. Aarts:
"Dynamics of individual Brownian rods in a microchannel flow";
Soft Matter,
15
(2019),
5810
- 5814.
English abstract:
We study the orientational dynamics of heavy silica microrods flowing through a microfluidic channel. Comparing experiments and Brownian dynamics simulations we identify different particle orbits, in particular in-plane tumbling behavior, which cannot be explained by classical Jeffery theory, and we relate this behavior to the rotational diffusion of the rods. By constructing the full, three-dimensional, orientation distribution, we describe the rod trajectories and quantify the persistence of Jeffery orbits using temporal correlation functions of the Jeffery constant. We find that our colloidal rods lose memory of their initial configuration in about a second, corresponding to half a Jeffery period.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1039/C9SM00903E
Created from the Publication Database of the Vienna University of Technology.