Abstract
Laboratory experiments are performed examining the enhanced damping of surface waves by floating spherical particles. Without particles, wave amplitudes decay exponentially in time; with the particles, the dissipation is enhanced such that waves are arrested in finite time. Initially the decay is exponential with an e-folding time that is inversely proportional to the depth of the particle layer, but independent of particle size. At later times and lower amplitudes, the decay turns into a power law , with exponent lying between and 3. The stopping time also decreases with increasing particle layer depth.
- Received 26 August 2018
DOI:https://doi.org/10.1103/PhysRevFluids.4.014804
©2019 American Physical Society