Abstract
Two types of stable, highly localized Faraday resonant standing waves with multiple crests and troughs are observed in an ethanol-water solution partly filled in a Hele-Shaw cell vertically oscillated with a single frequency. Systematical experiments are performed to investigate the properties of these oscillons. It is found that the wave height of these oscillons is independent of fluid depth from 1 to 5 cm. In particular, some experiments are performed to indicate the high localization of the oscillons, which suggests that these oscillons may be regarded as a combination of the two elementary oscillons discovered by Rajchenbach et al. [Phys. Rev. Lett. 107, 024502 (2011)], for instance, , where denotes an oscillon with crests and troughs. So, our experiments also reveal an elegant “arithmetic” of these oscillons. These experimental phenomena are helpful to deepen and enrich our understanding about Faraday waves.
- Received 3 April 2014
- Revised 15 July 2014
DOI:https://doi.org/10.1103/PhysRevE.90.031001
©2014 American Physical Society