Details

Autor(en) / Beteiligte

• Dufresne, E R
• Squires, T M
• Brenner, M P
• Grier, D G

Titel

Hydrodynamic coupling of two brownian spheres to a planar surface

Ist Teil von

• Physical review letters, 2000-10, Vol.85 (15), p.3317-3320

Ort / Verlag

United States

Erscheinungsjahr

2000

Quelle

American Physical Society

Beschreibungen/Notizen

• 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.