Work

From deep to shallow water two-dimensional wave turbulence: Emergence of soliton gas

Year: 2025

Type: article

Abstract: This article reports an investigation into the statistical properties of an ensemble of random nonlinear water waves propagating in two dimensions in a large scale wave tank (27m x30m, 35 cm deep). By varying the peak frequency of the wave spectrum, we modify the wave dispersion and observe a transition in the system's behavior. As the frequency decreases, the dynamics evolve from weak wave turbulence to a soliton gas in the shallow water regime. This transition is striking as these two theoretical frameworks are extremely different on fundamental grounds, with the former supporting an energy cascade while the latter is integrable.

Source: Physical Review Fluids

DOI: 10.1103/77r2-34v4

Authors: Thibault Leduque, Maxime Kaczmarek, Hervé Michallet, Eric Barthélemy, Nicolas Mordant

Institution: Laboratoire des Écoulements Géophysiques et Industriels

Language: English

Topic: Nonlinear Waves and Solitons

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Simons Foundation, Agence Nationale de la Recherche, Ministère de l'Education Nationale, de l'Enseignement Superieur et de la Recherche

Awards: SOliton Gas in Optics and hydrODynamics, G8991414812