Particle Interactions in a Vertically Vibrating Fluid
Abstract
Experiments by Buckley, Losert, Voth and Gollub have demonstrated that under the correct conditions particles tend to form large clusters in a vertically oscillating container completely filled with a liquid of different density. Motivated by this experiment, we consider theoretically the interaction between two heavy particles in an oscillating container of liquid. The calculation is divided into two parts: first, we discuss the hydrodynamic forces keeping a single particle from resting on the wall; then we discuss how the flow field created by a single oscillating particle in the neighborhood of a wall can create attractive or weakly repulsive interactions between two particles. These results are discussed in various possible limiting cases, and are compared to the experiments.
- Publication:
-
APS Division of Fluid Dynamics Meeting Abstracts
- Pub Date:
- November 2000
- Bibcode:
- 2000APS..DFD.DJ007B