Hydrodynamic coupling of two brownian spheres to a planar surface |
| |
| Authors: | Dufresne E R Squires T M Brenner M P Grier D G |
| |
| Affiliation: | Department of Physics, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, USA. |
| |
| Abstract: | We describe direct imaging measurements of the collective and relative diffusion of two colloidal spheres near a flat plate. The bounding surface modifies the spheres' dynamics, even at separations of tens of radii. This behavior is captured by a stokeslet analysis of fluid flow driven by the spheres' and wall's no-slip boundary conditions. In particular, this analysis reveals surprising asymmetry in the normal modes for pair diffusion near a flat surface. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
