| Issue |
Europhys. Lett.
Volume 46, Number 4, May II 1999
|
|
|---|---|---|
| Page(s) | 537 - 541 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i1999-00297-5 | |
| Published online | 01 September 2002 | |
Influence of hydrodynamic interactions on the dynamics of long-range interacting colloidal particles
Fakultät für Physik, Universität Konstanz - D-78457 Konstanz, Germany
Received:
13
November
1998
Accepted:
26
February
1999
We study the influence of hydrodynamic interactions on the self-diffusion of super-paramagnetic colloidal particles suspended in water. The colloids interact via repulsive dipolar forces due to an applied magnetic field, and their motion is effectively confined to two dimensions. By comparing experimental data with the results from extensive computer simulations, where the water flow fields are treated at the Rotne-Prager level, we show that the diffusivity is enhanced at all times due to hydrodynamic interactions. The enhancement effect becomes stronger with increasing particle density, but is almost unaffected by the temperature.
PACS: 82.70.Dd – Colloids / 05.40.-a – Fluctuation phenomena, random processes, noise and Brownian motion / 47.15.Pn – Laminar suspensions
© EDP Sciences, 1999
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.