URL: https://www.annualreviews.org/doi/10.1146/annurev-fluid-021021-102043
Abstract: The last decade has
seen a significant increase in the number of studies devoted to
wave turbulence. Many deal with water waves, as modeling of
ocean waves has historically motivated the development of weak
turbulence theory, which adresses the dynamics of a random
ensemble of weakly nonlinear waves in interaction. Recent
advances in experiments have shown that this theoretical picture
is too idealized to capture experimental observations. While
gravity dominates much of the oceanic spectrum, waves observed
in the laboratory are in fact gravity-capillary waves, due to
the restricted size of wave basins. This richer physics induces
many interleaved physical effects far beyond the theoretical
framework, notably in the vicinity of the gravity-capillary
crossover. These include dissipation, finite-system size
effects, and finite nonlinearity effects. Simultaneous
space-and-time resolved techniques, now available, open the way
for a much more advanced analysis of these effects.