The effect of patterned substrates on the onset and behavior of the Faraday instability is studied experimentally. We show that the onset of Faraday standing waves in a vertically oscillating layer of liquid can be delayed due to the topography of the underlying two-dimensional patterned substrate. The magnitude of this stabilization effect can be predicted by existing linear stability theories, and we provide an additional physical explanation for the behavior. These observations suggest the feasibility of exploiting the Faraday instability in thin liquid layers in practical engineering systems.
ASJC Scopus subject areas
- Computational Mechanics
- Mechanics of Materials
- Physics and Astronomy(all)
- Fluid Flow and Transfer Processes